RuPAC2021 - List of Keywords (injection)

Paper	Title	Other Keywords	Page
MOY01	The NICA Complex Injection Facility	booster, acceleration, heavy-ion, proton	7
	A.V. Butenko, S.A. Kostromin, I.N. Meshkov, A.O. Sidorin, E. Syresin JINR/VBLHEP, Dubna, Moscow region, Russia H.G. Khodzhibagiyan, G.V. Trubnikov JINR, Dubna, Russia
	The Nuclotron-based Ion Collider fAcility (NICA) is un-der construction in JINR. The NICA goals are providing of colliding beams for studies of hot and dense strongly interacting baryonic matter and spin physics. The NICA complex injection facility consists of four accelerators: Alvarez-type linac LU-20 of light ions up to 5 MeV/u; heavy ion linac HILAC with RFQ and IH DTL sections at energy 3.2 MeV/u; superconducting Booster synchrotron at energy up 578 MeV/u; superconducting synchrotron Nuclotron at gold ion energy 3.85 GeV/u. In the nearest future the old LU-20 will be substituted by a new light ion linac for acceleration of 2<A/z<3 ions up to 7 MeV/u with additional two acceleration sections for protons, first IH section for 13 MeV and the second one - superconducting for 20 MeV. The status of NICA injec-tion facility is under discussion.
	Slides MOY01 [52.421 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOY01
About •	Received ※ 05 October 2021 — Revised ※ 08 October 2021 — Accepted ※ 13 October 2021 — Issued ※ 18 October 2021
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MOY02	NICA Ion Coolider at JINR	collider, booster, dipole, kicker	12
	E. Syresin, N.N. Agapov, A.V. Alfeev, V. Andreev, A.A. Baldin, A.M. Bazanov, O.I. Brovko, V.V. Bugaev, A.V. Butenko, D.E. Donets, E.D. Donets, E.E. Donets, A.V. Eliseev, G.A. Filatov, V.V. Fimushkin, A.R. Galimov, B.V. Golovenskiy, E.V. Gorbachev, A. Govorov, A.Yu. Grebentsov, E.V. Ivanov, V. Karpinsky, V. Kekelidze, H.G. Khodzhibagiyan, A. Kirichenko, A.G. Kobets, V.V. Kobets, S.A. Korovkin, S.A. Kostromin, O.S. Kozlov, K.A. Levterov, D.A. Lyuosev, A.M. Malyshev, A.A. Martynov, S.A. Melnikov, I.N. Meshkov, V.A. Mikhailov, Iu.A. Mitrofanova, V.A. Monchinsky, A. Nesterov, A.L. Osipenkov, A.V. Philippov, R.V. Pivin, D.O. Ponkin, S. Romanov, P.A. Rukojatkin, I.V. Shirikov, A.A. Shurygin, A.O. Sidorin, V. Slepnev, A. Slivin, G.V. Trubnikov, A. Tuzikov, B. Vasilishin, V. Volkov JINR, Dubna, Moscow Region, Russia I.V. Gorelyshev, A.V. Konstantinov, K.G. Osipov JINR/VBLHEP, Dubna, Moscow region, Russia
	The Nuclotron-based Ion Collider fAcility (NICA) is under construction in JINR. The NICA goals are providing of colliding beams for studies of hot and dense strongly interacting baryonic matter and spin physics. The accelerator facility of collider NICA consists of following elements: acting Alvarez-type linac LU-20 of light ions at energy 5 MeV/u, constructed a new light ion linac of light ions at energy 7 MeV/n and protons at energy 13 MeV, new acting heavy ion linac HILAC with RFQ and IH DTL sections at energy 3.2 MeV/u, new acting superconducting booster synchrotron at energy up 600 MeV/u, acting superconducting synchrotron Nuclotron at gold ion energy 4.5 GeV/n and mounted two Collider storage rings with two interaction points. The status of acceleration complex NICA is under discussion.
	Slides MOY02 [15.467 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOY02
About •	Received ※ 24 September 2021 — Revised ※ 25 September 2021 — Accepted ※ 07 October 2021 — Issued ※ 12 October 2021
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MOPSA02	Experimental Tests of CW Resonance Accelerator With 7.5 MeV High Intensity Electron Beam	electron, cavity, experiment, resonance	132
	L.E. Polyakov, Ya.V. Bodryashkin, M.A. Guzov, I.I. Konishev, N.N. Kurapov, V.V. Kuznetsov, I.A. Mashin, V.R. Nikolaev, A.M. Opekunov, G. Pospelov, A.N. Shein, I.V. Shorikov, N.V. Zavyalov, I.V. Zhukov RFNC-VNIIEF, Sarov, Nizhniy Novgorod region, Russia S.A. Putevskoy, M.L. Smetanin, A.V. Telnov VNIIEF, Sarov, Russia
	CW resonance accelerator with high average power electron beam is developed at RFNC-VNIIEF. Electron energy range is varied from 1.5 to 7.5 MeV and average beam current is up to 40 mA. Electrons obtain the required energy by several passing of coaxial half-wave accelerating cavity. In this paper we present the results of electron beam dynamics simulation during its acceleration and transportation. The operating parameters of RF system, beam optics and bending magnets are determined. These parameters permit to obtain output beam with minimal current losses on each accelerating stage. As a result of carried out tests we obtained 7.5 MeV electron beam after five passes of accelerating cavity. The electron energy spectrum, average beam current, transverse beam dimensions were determined on each accelerating stage. Common beam current loss is under 10 %.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA02
About •	Received ※ 25 September 2021 — Revised ※ 26 September 2021 — Accepted ※ 07 October 2021 — Issued ※ 21 October 2021
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MOPSA07	200 MeV Linear Electron Accelerator - Pre-Injector for a New Kurchatov Synchrotron Radiation Source	simulation, linac, synchrotron, ion-source	145
	I.A. Ashanin, S.M. Polozov, A.I. Pronikov, V.I. Rashchikov MEPhI, Moscow, Russia I.A. Ashanin, V. Korchuganov, S.M. Polozov, A.I. Pronikov, V.I. Rashchikov, V.A. Ushakov NRC, Moscow, Russia
	New linear electron accelerator (linac) with an energy of about 200 MeV (or 300 MeV in a high-energy version) is being proposed for injection into the booster synchrotron, which is being developed for the reconstruction of the SIBERIA-2 accelerator complex with the aim of upgrade to 3rd generation source at the NRC «Kurchatov Institute». A modernized linac and its specific elements layout will described in the report. The modeling of accelerating structure and optimization of electrodynamics characteristics and fields distribution and geometric in order to reduce the beam spectrum at the output of the linac was done. A step-by-step front-to-end beam dynamics simulation results will discuss.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA07
About •	Received ※ 29 September 2021 — Revised ※ 30 September 2021 — Accepted ※ 07 October 2021 — Issued ※ 12 October 2021
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MOPSA08	Beam Dynamics Simulation in a Linear Electron Accelerator - Injector for the 4th Generation Specialized Synchrotron Radiation Source USSR	simulation, gun, linac, cathode	149
	I.A. Ashanin, Yu.D. Kliuchevskaia, S.M. Polozov, A.I. Pronikov MEPhI, Moscow, Russia I.A. Ashanin, S.M. Polozov, A.I. Pronikov NRC, Moscow, Russia
	USSR project (Ultimate Source of Synchrotron Radiation, 4th generation synchrotron light source) is being developed in the NRC «Kurchatov Institute». This Light Source will include both storage ring and soft FEL (Free Electron Laser) and one linac with an energyof 6 GeV, which is planned to be used both for beam injection into storage ring (top-up injection) and as a high-brightness bunch driver for FEL. It is suggested to use two front-ends in this linac: RF-gun with thermionic cathode with adiabatic buncher for injection into storage ring and RF-gun with photocathode will use to generate a bunch train for FEL. The purpose of this work was to development a general layout of the top-up linac with the aim of minimize of the beam energy spread and transverse emittance at the exit and analysis the front-to-end beam dynamics in this linear accelerator.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA08
About •	Received ※ 29 September 2021 — Revised ※ 30 September 2021 — Accepted ※ 07 October 2021 — Issued ※ 09 October 2021
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MOPSA49	DC140 Cyclotron, Trajectory Analysis of Beam Acceleration and Extraction	cyclotron, acceleration, extraction, operation	205
	I.A. Ivanenko, N.Yu. Kazarinov JINR, Dubna, Moscow Region, Russia V.I. Lisov JINR/FLNR, Moscow region, Russia
	At the present time, the activities on creation of the new heavy-ion isochronous cyclotron DC140 are carried out at Joint Institute for Nuclear Research. DC140 facility is intended for SEE testing of microchip, for production of track membranes and for solving of applied physics problems. Cyclotron will produce accelerated beams of ions A/Z= 5 - 5.5 and 7. 5 - 8.25 with a fixed beam energy 4.8 MeV/n and 2.124 MeV/n respectively. The variation of operation modes is provided by changing of magnetic field in the range 1.4T - 1.55T with fixed generator frequency 8.632 MHz. In this report, the results of design and simulation of the beam acceleration and extraction are presented.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA49
About •	Received ※ 12 September 2021 — Revised ※ 15 September 2021 — Accepted ※ 20 September 2021 — Issued ※ 02 October 2021
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MOPSA50	Axial Injection System of DC140 Cyclotron of FLNR JINR	cyclotron, ECR, radiation, solenoid	209
	N.Yu. Kazarinov, V. Bekhterev, G.G. Gulbekyan, I.A. Ivanenko, I.V. Kalagin, S.V. Mitrofanov, N.F. Osipov, V.A. Semin JINR, Dubna, Moscow Region, Russia V.I. Lisov JINR/FLNR, Moscow region, Russia
	Flerov Laboratory of Nuclear Reaction of Joint Institute for Nuclear Research continues the works under creating of FLNR JINR Irradiation Facility based on the cyclotron DC140. The facility will have three experimental beam lines for SEE testing of microchips, for production of track membranes and for solving of applied physics problems. The injection into cyclotron will be realized from the external room temperature 18 GHz ECR ion source. The systems of DC140 cyclotron such as axial injection, main magnet, RF- and extraction systems and beam lines are the reconstruction of the DC72 cyclotron ones. The acceleration in DC140 cyclotron is carried out for two values of harmonic number h = 2,3 of heavy ions with mass-to-charge ratio A/Z within two intervals 5 - 5.5 and 7.5 - 8.25 up to two fixed energies 2.124 and 4.8 MeV per unit mass, correspondingly. The intensity of the accelerated ions will be about 1 pmcA for light ions (A<86) and about 0.1 pmcA for heavier ions (A>132). The design of the axial injection system of the DC140 cyclotron is presented in this report.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA50
About •	Received ※ 27 August 2021 — Revised ※ 07 September 2021 — Accepted ※ 10 September 2021 — Issued ※ 23 October 2021
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TUX01	Status of the HIAF Accelerator Facility in China	ECR, linac, cavity, vacuum	23
	J.C. Yang, D.Q. Gao, Y. He, L.J. Mao, G.D. Shen, L.N. Sheng, L.T. Sun, Z. Xu, Y.Q. Yang, Y.J. Yuan IMP/CAS, Lanzhou, People’s Republic of China
	The High Intensity heavy-ion Accelerator Facility (HIAF) is under constructed at IMP in China. The HIAF main feature is rapid acceleration of ions in the booster synchrotron ring (BRing) with the ramping rate up to 12 T/s. The challenges are related to the systems RF cavities, dipole power supplies, vacuum etc. Works on key prototypes of the HIAF machine are ongoing at IMP. In this paper, the test results of the power supplies, RF cavities and vacuum chambers are presented. As the construction of the HIAF facility has started, an overview of the hardware developments will also be reported.
	Slides TUX01 [17.099 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUX01
About •	Received ※ 13 September 2021 — Revised ※ 27 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 20 October 2021
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TUA02	Current Status of VEPP-5 Injection Complex	positron, operation, controls, electron	37
	Yu.I. Maltseva, A.V. Andrianov, K.V. Astrelina, V.V. Balakin, A.M. Barnyakov, A.M. Batrakov, O.V. Belikov, D.E. Berkaev, D. Bolkhovityanov, F.A. Emanov, A.R. Frolov, G.V. Karpov, A.S. Kasaev, A.A. Kondakov, N.Kh. Kot, E.S. Kotov, G.Y. Kurkin, R.M. Lapik, N.N. Lebedev, A.E. Levichev, A.Yu. Martynovsky, P.V. Martyshkin, S.V. Motygin, A.A. Murasev, V. Muslivets, D.A. Nikiforov, A.V. Pavlenko, A.M. Pilan, Yu.A. Rogovsky, S.L. Samoylov, A.G. Tribendis, S. Vasiliev, V.D. Yudin BINP SB RAS, Novosibirsk, Russia A.V. Andrianov, V.V. Balakin, F.A. Emanov, E.S. Kotov, A.E. Levichev, Yu.I. Maltseva, D.A. Nikiforov, A.V. Pavlenko, Yu.A. Rogovsky NSU, Novosibirsk, Russia A.G. Tribendis NSTU, Novosibirsk, Russia
	VEPP-5 Injection Complex (IC) supplies VEPP-2000 and VEPP-4 colliders at Budker Institute of Nuclear Physics (BINP, Russia) with high energy electron and positron beams. Since 2016 the IC has shown the ability to support operation of both colliders routinely with maximum positron storage rate of 1.7·10¹⁰ e+/s. Stable operation at the energy of 430 MeV has been reached. Research on further improvements on the IC performance is carried out. In particular control system was improved, additional beam diagnostics systems were developed, monitoring of RF system was upgraded. In this paper, the latest achieved IC performance, operational results and prospects are presented.
	Slides TUA02 [2.966 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUA02
About •	Received ※ 28 September 2021 — Revised ※ 01 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 11 October 2021
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TUPSB10	Modeling of the Spin-Navigator Method for Manipulating the Beam Polarization in a Spin-Transparent Storage Ring	polarization, lattice, storage-ring, closed-orbit	251
	A.E. Aksentyev, A.A. Melnikov, V. Senichev RAS/INR, Moscow, Russia A.E. Aksentyev MEPhI, Moscow, Russia V. Ladygin JINR, Dubna, Moscow Region, Russia
	A method for manipulating the orientation of the beam polarization axis based on using the so-called "spin-navigator" technique in a storage ring operating in the spin-transparent regime has been modelled. The beam particles’ spin- and orbital dynamics have been numerically investigated with the purpose of determining the method’s feasibility; the latter’s effect on spin-decoherence has been studied also.
	Poster TUPSB10 [1.848 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB10
About •	Received ※ 24 September 2021 — Accepted ※ 29 September 2021 — Issued ※ 06 October 2021
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TUPSB37	Modernization of the ECR Ion Source DECRIS-2M. Results of the First Tests.	ECR, ECRIS, ion-source, plasma	307
	A.E. Bondarchenko, S.L. Bogomolov, A.A. Efremov, V.N. Loginov, V. Mironov, D.K. Pugachev JINR, Dubna, Moscow Region, Russia
	The article describes the design of the modernized ECR ion source DECRIS-2M. The upgrade consists in increasing the magnetic field to improve plasma confinement and improve the source parameters. The modernization also made it possible to increase the inner diameter of the plasma chamber and replace the coaxial microwave power input by a waveguide. Redesigned injection chamber significantly expands the possibilities of production ions of solids using different methods. The article also presents the first results of experiments production of Ar, Xe and Bi ion beams from a modernized ion source. The results demonstrate substantial increase of the ion beams intensity.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB37
About •	Received ※ 06 September 2021 — Revised ※ 21 September 2021 — Accepted ※ 23 September 2021 — Issued ※ 18 October 2021
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TUPSB40	He⁺ Ion Source for the NICA Injection Complex	ion-source, cathode, plasma, LEBT	316
	B.V. Golovenskiy, V.A. Monchinsky JINR, Dubna, Moscow Region, Russia A.M. Bazanov, A.S. Bogatov, D.E. Donets, D.S. Letkin, D.O. Leushin, K.A. Levterov, V.V. Mialkovskiy, D.O. Ponkin, I.V. Shirikov JINR/VBLHEP, Dubna, Moscow region, Russia
	A mono-ion source of single-charged helium of high intensity has been created to confirm the declared parameters of Heavy Ion Linear Accelerator (HILAC) and for the injection into superconducting synchrotron (SC) Booster during the first run. The paper presents the design of the He⁺ ion source, test bench for the TOF measurements and acceleration beam developed at VBLHEP, JINR. The results of the tests of the source are presented. During the tests the intense beams of ions 50 mA of He⁺ were produced.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB40
About •	Received ※ 25 September 2021 — Revised ※ 08 October 2021 — Accepted ※ 13 October 2021 — Issued ※ 18 October 2021
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TUPSB43	Optimization of the RF-Gun With Photocathode at Operating Frequency 2800 MHz for the New Injection Linac for USSR Project	gun, simulation, beam-loading, cathode	319
	Yu.D. Kliuchevskaia, S.M. Polozov MEPhI, Moscow, Russia S.M. Polozov NRC, Moscow, Russia
	The beam dynamics analysis of the RF-gun with photocathode for Russian 4th generation light source Ultimate Source of Synchrotron Radiation (USSR-4) was done to chose the optimal length of the section and cell’s number and also to define optimal accelerating gradient and injection phase. The simulation of electrodynamics parameters and RF field distribution in the RF-gun based on 3.5-, 5.5- and 7.5-cell pi-mode standing wave accelerating structure at operating frequency 2800 MHz was done. The influence of the beam loading effect on the field amplitude and beam dynamics was the main purpose of study also. The beam dynamics simulation results will present in the report and optimal RF-gun parameters will discuss.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB43
About •	Received ※ 15 September 2021 — Revised ※ 29 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 23 October 2021
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WEA01	Beam Transfer Systems of NICA Facility: from HILAC to Booster	booster, septum, power-supply, beam-transport	61
	A. Tuzikov, A.M. Bazanov, A.V. Butenko, D.E. Donets, A.A. Fateev, A.R. Galimov, B.V. Golovenskiy, E.V. Gorbachev, A. Govorov, S.Yu. Kolesnikov, K.A. Levterov, D.A. Lyuosev, I.N. Meshkov, H.P. Nazlev, D.O. Ponkin, V.V. Seleznev, V.S. Shvetsov, A.O. Sidorin, A.I. Sidorov, A.N. Svidetelev, E. Syresin, V.I. Tyulkin JINR, Dubna, Moscow Region, Russia A.P. Kozlov, A.S. Petukhov, G.S. Sedykh JINR/VBLHEP, Moscow, Russia A.O. Sidorin Saint Petersburg State University, Saint Petersburg, Russia
	New accelerator complex is being constructed by Joint Institute for Nuclear Research (Dubna, Russia) in frame of Nuclotron-based Ion Collider fAcility (NICA) project. The NICA layout includes new Booster and existing Nuclotron synchrotrons as parts of the heavy ion injection chain of the NICA Collider as well as beam transport lines which are the important link for the whole accelerator facility. Designs and current status of beam transfer systems in the beginning part of the NICA complex, which are partially commissioned, are presented in this paper.
	Slides WEA01 [26.886 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEA01
About •	Received ※ 07 October 2021 — Revised ※ 08 October 2021 — Accepted ※ 13 October 2021 — Issued ※ 22 October 2021
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WEA02	Acceleration the Beams of He⁺ and Fe14+ Ions by HILAC and its Injection into NICA Booster in its Second Run	ion-source, booster, laser, heavy-ion	65
	K.A. Levterov, V.P. Akimov, A.M. Bazanov, A.V. Butenko, D.E. Donets, D.S. Letkin, D.O. Leushin, D.A. Lyuosev, A.A. Martynov, V.V. Mialkovskiy, D.O. Ponkin, I.V. Shirikov, A.O. Sidorin, A. Tuzikov JINR/VBLHEP, Dubna, Moscow region, Russia D. Egorov, A.R. Galimov, B.V. Golovenskiy, A. Govorov, V.V. Kobets, A.D. Kovalenko, V.A. Monchinsky, E. Syresin, G.V. Trubnikov JINR, Dubna, Moscow Region, Russia
	Injector of NICA accelerating facility based on the Heavy Ion Linear Accelerator (HILAC) is aimed to inject the heavy ions having atomic number A~200 and ratio A/Z - 6.25 produced by ESIS ion source accelerated up to the 3.2 MeV for the injection into superconducting synchrotron (SC) Booster. The project output energy of HILAC was verified on commissioning in 2018 using the beams of carbon ions produced with the Laser Ion Source and having ratio A/Z=6 that is close to the project one. Beams of He¹⁺ ions were injected into Booster in its first run and accelerated in 2020. In 2021 ions of Fe¹⁴⁺ produced with the LIS were injected and accelerated up to 200 MeV/u. Beam formation of Fe ions and perspectives of using LIS for the production the ions with high atomic mass A and ratio A/Z matching to HILAC input parameters are described.
	Slides WEA02 [12.908 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEA02
About •	Received ※ 07 October 2021 — Revised ※ 08 October 2021 — Accepted ※ 13 October 2021 — Issued ※ 14 October 2021
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WEA03	200 MeV Linac Development for the SKIF Light Source Injector	linac, electron, bunching, gun	68
	M.V. Arsentyeva, A.V. Andrianov, A.M. Barnyakov, D.I. Chekmenyov, A.E. Levichev, O.I. Meshkov, D.A. Nikiforov, O.A. Pavlov, I.L. Pivovarov, S.L. Samoylov, V. Volkov BINP SB RAS, Novosibirsk, Russia
	A new synchrotron light source SKIF of the 4th gen-eration is construction at Budker institute of nuclear physics (Novosibirsk, Russia). It consists of the main ring, the booster ring and the linear accelerator. This paper presents design of the linear accelerator which is expected to provide electron beams with the energy of 200 MeV. Construction of the linear accelerator is discussed. Description of the linear accelerator main systems is presented.
	Slides WEA03 [4.794 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEA03
About •	Received ※ 20 September 2021 — Revised ※ 01 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 16 October 2021
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WEPSC14	Booster RF System First Beam Tests	booster, controls, acceleration, cavity	370
	A.Yu. Grebentsov, O.I. Brovko, A.V. Butenko, V.A. Gerklotts, A.M. Malyshev, V.D. Petrov, O.V. Prozorov, E. Syresin, A.A. Volodin JINR, Dubna, Moscow Region, Russia A.M. Batrakov, S.A. Krutikhin, G.Y. Kurkin, V.M. Petrov, A.M. Pilan, E. Rotov, A.G. Tribendis BINP SB RAS, Novosibirsk, Russia G.A. Fatkin NSU, Novosibirsk, Russia
	The project NICA is being constructed in JINR, to provide collisions of heavy ion beams in the energy range from 1 to 4.5 GeV/u at the luminosity level of 1·1027 cm^-2·s⁻¹. A key element in the collider injection chain is the Booster a cycling accelerator of ions 197Au³¹⁺. The injection energy of particles is 3.2 MeV/u, extraction energy is 600MeV/u. Two Booster RF stations provide 10 kV of acceleration voltage. The frequency range from 587 kHz to 2526 kHz at the operation of the stations in the injector chain. The RF stations were fabricated in the Budker Institute of Nuclear Physics. The main design features and parameters of the first beam tests of the Booster RF system are discussed in this paper.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC14
About •	Received ※ 17 September 2021 — Revised ※ 27 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 16 October 2021
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WEPSC15	Barrier Station RF1 of the NICA Collider. Design Features and Influence on Beam Dynamics	collider, impedance, simulation, space-charge	373
	A.M. Malyshev, A.A. Krasnov, Ya.G. Kruchkov, S.A. Krutikhin, G.Y. Kurkin, A.Yu. Martynovsky, N.V. Mityanina, S.V. Motygin, A.A. Murasev, V.N. Osipov, V.M. Petrov, A.M. Pilan, E. Rotov, V.V. Tarnetsky, A.G. Tribendis, I.A. Zapryagaev, A.A. Zhukov BINP SB RAS, Novosibirsk, Russia O.I. Brovko, I.N. Meshkov, E. Syresin JINR/VBLHEP, Moscow, Russia I.N. Meshkov Saint Petersburg State University, Saint Petersburg, Russia E. Rotov NSU, Novosibirsk, Russia A.G. Tribendis NSTU, Novosibirsk, Russia
	This paper reports on the design features and con-struction progress of the barrier bucket RF systems for the NICA collider being built at JINR, Dubna. Each of two collider rings has three RF systems named RF1 to 3. RF1 is a barrier bucket system used for particles capturing and accumulation during injection, RF2 and 3 are resonant systems operating at 22nd and 66th harmonics of the revolution frequency and used for the 22 bunches formation. The RF systems are de-signed by Budker INP. Both RF1 stations were manu-factured, delivered to JINR and tested at the stand. The test results are presented in the article, as well as some results of calculating the effect of the RF1 system on the beam dynamics.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC15
About •	Received ※ 24 September 2021 — Revised ※ 26 September 2021 — Accepted ※ 27 September 2021 — Issued ※ 18 October 2021
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WEPSC56	Beam Parameters Measurement and Control Software Tools for VEPP-5 Injection Complex Damping Ring	damping, software, software-tool, operation	443
	V.V. Balakin, D.E. Berkaev, F.A. Emanov BINP SB RAS, Novosibirsk, Russia
	Beam parameters control and operation software tools for BINP VEPP-5 Injection Complex Damping ring consisting of two parts were developed. Beam parameters control includes processing of measured turn-by-turn beam coordinates from all Damping ring beam position monitors and displaying such features as tunes and beam position into vacuum chamber. This part gives an opportunity to measure Damping ring response matrices and carry out its processing too. Beam parameters operation is based on knobs creating. Knob is combination of accelerator control elements, which performs an isolated shift of one selected parameter, e.g. only vertical betatron tune. This part is devoted to their creation and application on Injection Complex VEPP-5. This paper presents review of developed software tools and their application result on VEPP-5 Injection Complex: beam position adjustment via response matrix measurements and quantification the amount of Damping ring captured particles during the injection process depending on beam tunes.
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC56
About •	Received ※ 06 September 2021 — Accepted ※ 27 September 2021 — Issued ※ 16 October 2021
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FRA01	Peculiarities of Producing 48Ca, 48Ti, 52Cr Beams at the DC-280 Cyclotron	ECR, cyclotron, experiment, acceleration	93
	K. Gikal, S.L. Bogomolov, I.A. Ivanenko, N.Yu. Kazarinov, D.K. Pugachev, V.A. Semin JINR, Dubna, Moscow Region, Russia V.I. Lisov, A.A. Protasov JINR/FLNR, Moscow region, Russia
	The first beam of 84Kr¹⁴⁺ ions was accelerated in the DC-280 on December 26, 2018 and extracted to the ion transport channel on January 17, 2019. In March 2019, beams of accelerated 84Kr⁺14 ions with intensity of 1.36 pmkA and 12C⁺2 ions with and intensity of 10 pmkA were extracted from the DC-280 to the beam transport channel with energy about 5.8 MeV/nucleon. In 2020-2021 years, beams of 48Ca⁷⁺,10+ ions with intensity up to 10,6 pmkA were accelerated and 7,1 pmkA were extracted from the DC-280 to the beam transport channel with energy about 4,51 - 5,29 MeV/nucleon. In 2021 year, beams of accelerated 52,54Cr¹⁰⁺ ions with intensity up to 2,5 pmkA were extracted from the DC-280 to the beam transport channel with energy about 5,05 MeV/nucleon and beams of 48Ti⁷⁺ with intensity up to 1pmkA and with energy about 4,94 MeV/nucleon The main task of the new accelerator is implementation of the long-term program of researches on the SHE Factory aimed on synthesis of new elements (Z>118) and detailed studying of nuclear- physical and chemical properties of earlier opened 112-118 ones.
	Slides FRA01 [9.228 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-FRA01
About •	Received ※ 18 September 2021 — Revised ※ 25 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 16 October 2021
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FRA02	Cyclotron of Multicharged Ions	cyclotron, vacuum, resonance, radiation	96
	Yu.K. Osina, A. Akimova, A.V. Galchuck, Yu.N. Gavrish, S.V. Grigorenko, V.I. Grigoriev, M.L. Klopenkov, R.M. Klopenkov, L.E. Korolev, K.A. Kravchuk, A.N. Kuzhlev, I.I. Mezhov, V.G. Mudrolyubov, K.E. Smirnov, Yu.I. Stogov, S.S. Tsygankov, M.V. Usanova NIIEFA, St. Petersburg, Russia
	The JSC "NIIEFA" is designing a cyclotron system intended to accelerate ions with a mass-to-charge ratio of 3-7 in the energy range of 7.5-15 MeV per nucleon. The variety of ions, the range of changes in their energy, and the intensity of the beams provide conditions for a wide range of basic and applied research, including for solving a number of technological tasks. The cyclotron electromagnet has an H-shaped design with a pole diameter of 4 meters and a four-sector mag-netic structure. In the basic mode, the dependence of the induction on the radius corresponding to the isochronous motion is realized by turning on the main coil only through the shape of the central plugs, sector side plates, and sector chamfers. For other modes of isochronous ac-celeration, the current in the main coil is changed and cor-rection coils are tuned. The resonance system consists of two resonators with an operating frequency adjustable from 13 to 20 MHz. The final stage of the RF generator is installed close to the resonator and is connected to it by a conductive power input device. The external injection system generates and separates ions with a given A/z ratio. The injection energy is chosen such that the Larmor radius is constant, which allows us-ing an inflector of unchanged geometry for the entire list of ions. The transportation system forms beams of accelerated ions with specified parameters and delivers them to sample irradiation devices. Computer control of the cyclotron is provided.
	Slides FRA02 [11.588 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-FRA02
About •	Received ※ 24 September 2021 — Revised ※ 29 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 20 October 2021
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FRB05	Updated Status of Protom Synchrotrons for Radiation Therapy	proton, synchrotron, radiation, extraction	120
	A.A. Pryanichnikov, V. Alexandrov, V.E. Balakin, A.I. Bazhan, Belikhin, M.A. Belikhin, V.I. Chashurin, P.A. Lunev, A.E. Shemyakov, A.I. Shestopalov PhTC LPI RAS, Protvino, Russia V. Alexandrov, V.E. Balakin, A.I. Bazhan, Belikhin, M.A. Belikhin, P.A. Lunev, A.A. Pryanichnikov, A.E. Shemyakov, A.I. Shestopalov Protom Ltd., Protvino, Russia
	Physical-Technical Center of P.N. Lebedev Physical Institute of RAS and Protom Ltd. are engaged in development and implantation of synchrotrons for proton therapy into clinical practice. There are two proton therapy complexes "Prometheus" in Russia. That are fully developed and manufactured at Physical-Technical Center and Protom. Every day patients with head and neck cancer get treatment using "Prometheus" at the A. Tsyb Medical Radiological Research Center. At the moment these facilities together have accumulated more than 5 years of clinical experience. Two facilities are based on the Protom synchrotrons in the USA. One operates at the McLaren Hospital PT Center, it started to treat patients in 2018. Another one is as a part of the single-room proton therapy system "Radiance330" in Massachusetts General Hospital, that went into clinical operations in 2020. The first Israel proton therapy complex based on Protom synchrotron was launched in 2019. Protom facilities provide full stack of modern proton therapy technologies such as IMPT and pencil beam scanning. Key features of Protom synchrotron: low weight, compact size and low power consumption allow it to be placed in conventional hospitals without construction of any special infrastructure. This report presents current data on accelerator researches and developments of Physical-Technical Center and Protom Ltd. In addition, it provides data on the use of Protom based proton therapy complexes under the clinical conditions.
	Slides FRB05 [8.949 MB]
DOI •	reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-FRB05
About •	Received ※ 19 September 2021 — Revised ※ 30 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 11 October 2021
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Paper

Title

Other Keywords

Page

MOY01

The NICA Complex Injection Facility

booster, acceleration, heavy-ion, proton

7

A.V. Butenko, S.A. Kostromin, I.N. Meshkov, A.O. Sidorin, E. Syresin
JINR/VBLHEP, Dubna, Moscow region, Russia
H.G. Khodzhibagiyan, G.V. Trubnikov
JINR, Dubna, Russia

The Nuclotron-based Ion Collider fAcility (NICA) is un-der construction in JINR. The NICA goals are providing of colliding beams for studies of hot and dense strongly interacting baryonic matter and spin physics. The NICA complex injection facility consists of four accelerators: Alvarez-type linac LU-20 of light ions up to 5 MeV/u; heavy ion linac HILAC with RFQ and IH DTL sections at energy 3.2 MeV/u; superconducting Booster synchrotron at energy up 578 MeV/u; superconducting synchrotron Nuclotron at gold ion energy 3.85 GeV/u. In the nearest future the old LU-20 will be substituted by a new light ion linac for acceleration of 2<A/z<3 ions up to 7 MeV/u with additional two acceleration sections for protons, first IH section for 13 MeV and the second one - superconducting for 20 MeV. The status of NICA injec-tion facility is under discussion.

Slides MOY01 [52.421 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOY01

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Received ※ 05 October 2021 — Revised ※ 08 October 2021 — Accepted ※ 13 October 2021 — Issued ※ 18 October 2021

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MOY02

NICA Ion Coolider at JINR

collider, booster, dipole, kicker

12

E. Syresin, N.N. Agapov, A.V. Alfeev, V. Andreev, A.A. Baldin, A.M. Bazanov, O.I. Brovko, V.V. Bugaev, A.V. Butenko, D.E. Donets, E.D. Donets, E.E. Donets, A.V. Eliseev, G.A. Filatov, V.V. Fimushkin, A.R. Galimov, B.V. Golovenskiy, E.V. Gorbachev, A. Govorov, A.Yu. Grebentsov, E.V. Ivanov, V. Karpinsky, V. Kekelidze, H.G. Khodzhibagiyan, A. Kirichenko, A.G. Kobets, V.V. Kobets, S.A. Korovkin, S.A. Kostromin, O.S. Kozlov, K.A. Levterov, D.A. Lyuosev, A.M. Malyshev, A.A. Martynov, S.A. Melnikov, I.N. Meshkov, V.A. Mikhailov, Iu.A. Mitrofanova, V.A. Monchinsky, A. Nesterov, A.L. Osipenkov, A.V. Philippov, R.V. Pivin, D.O. Ponkin, S. Romanov, P.A. Rukojatkin, I.V. Shirikov, A.A. Shurygin, A.O. Sidorin, V. Slepnev, A. Slivin, G.V. Trubnikov, A. Tuzikov, B. Vasilishin, V. Volkov
JINR, Dubna, Moscow Region, Russia
I.V. Gorelyshev, A.V. Konstantinov, K.G. Osipov
JINR/VBLHEP, Dubna, Moscow region, Russia

The Nuclotron-based Ion Collider fAcility (NICA) is under construction in JINR. The NICA goals are providing of colliding beams for studies of hot and dense strongly interacting baryonic matter and spin physics. The accelerator facility of collider NICA consists of following elements: acting Alvarez-type linac LU-20 of light ions at energy 5 MeV/u, constructed a new light ion linac of light ions at energy 7 MeV/n and protons at energy 13 MeV, new acting heavy ion linac HILAC with RFQ and IH DTL sections at energy 3.2 MeV/u, new acting superconducting booster synchrotron at energy up 600 MeV/u, acting superconducting synchrotron Nuclotron at gold ion energy 4.5 GeV/n and mounted two Collider storage rings with two interaction points. The status of acceleration complex NICA is under discussion.

Slides MOY02 [15.467 MB]

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOY02

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Received ※ 24 September 2021 — Revised ※ 25 September 2021 — Accepted ※ 07 October 2021 — Issued ※ 12 October 2021

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MOPSA02

Experimental Tests of CW Resonance Accelerator With 7.5 MeV High Intensity Electron Beam

electron, cavity, experiment, resonance

132

L.E. Polyakov, Ya.V. Bodryashkin, M.A. Guzov, I.I. Konishev, N.N. Kurapov, V.V. Kuznetsov, I.A. Mashin, V.R. Nikolaev, A.M. Opekunov, G. Pospelov, A.N. Shein, I.V. Shorikov, N.V. Zavyalov, I.V. Zhukov
RFNC-VNIIEF, Sarov, Nizhniy Novgorod region, Russia
S.A. Putevskoy, M.L. Smetanin, A.V. Telnov
VNIIEF, Sarov, Russia

CW resonance accelerator with high average power electron beam is developed at RFNC-VNIIEF. Electron energy range is varied from 1.5 to 7.5 MeV and average beam current is up to 40 mA. Electrons obtain the required energy by several passing of coaxial half-wave accelerating cavity. In this paper we present the results of electron beam dynamics simulation during its acceleration and transportation. The operating parameters of RF system, beam optics and bending magnets are determined. These parameters permit to obtain output beam with minimal current losses on each accelerating stage. As a result of carried out tests we obtained 7.5 MeV electron beam after five passes of accelerating cavity. The electron energy spectrum, average beam current, transverse beam dimensions were determined on each accelerating stage. Common beam current loss is under 10 %.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA02

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Received ※ 25 September 2021 — Revised ※ 26 September 2021 — Accepted ※ 07 October 2021 — Issued ※ 21 October 2021

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MOPSA07

200 MeV Linear Electron Accelerator - Pre-Injector for a New Kurchatov Synchrotron Radiation Source

simulation, linac, synchrotron, ion-source

145

I.A. Ashanin, S.M. Polozov, A.I. Pronikov, V.I. Rashchikov
MEPhI, Moscow, Russia
I.A. Ashanin, V. Korchuganov, S.M. Polozov, A.I. Pronikov, V.I. Rashchikov, V.A. Ushakov
NRC, Moscow, Russia

New linear electron accelerator (linac) with an energy of about 200 MeV (or 300 MeV in a high-energy version) is being proposed for injection into the booster synchrotron, which is being developed for the reconstruction of the SIBERIA-2 accelerator complex with the aim of upgrade to 3rd generation source at the NRC «Kurchatov Institute». A modernized linac and its specific elements layout will described in the report. The modeling of accelerating structure and optimization of electrodynamics characteristics and fields distribution and geometric in order to reduce the beam spectrum at the output of the linac was done. A step-by-step front-to-end beam dynamics simulation results will discuss.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA07

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Received ※ 29 September 2021 — Revised ※ 30 September 2021 — Accepted ※ 07 October 2021 — Issued ※ 12 October 2021

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MOPSA08

Beam Dynamics Simulation in a Linear Electron Accelerator - Injector for the 4th Generation Specialized Synchrotron Radiation Source USSR

simulation, gun, linac, cathode

149

I.A. Ashanin, Yu.D. Kliuchevskaia, S.M. Polozov, A.I. Pronikov
MEPhI, Moscow, Russia
I.A. Ashanin, S.M. Polozov, A.I. Pronikov
NRC, Moscow, Russia

USSR project (Ultimate Source of Synchrotron Radiation, 4th generation synchrotron light source) is being developed in the NRC «Kurchatov Institute». This Light Source will include both storage ring and soft FEL (Free Electron Laser) and one linac with an energyof 6 GeV, which is planned to be used both for beam injection into storage ring (top-up injection) and as a high-brightness bunch driver for FEL. It is suggested to use two front-ends in this linac: RF-gun with thermionic cathode with adiabatic buncher for injection into storage ring and RF-gun with photocathode will use to generate a bunch train for FEL. The purpose of this work was to development a general layout of the top-up linac with the aim of minimize of the beam energy spread and transverse emittance at the exit and analysis the front-to-end beam dynamics in this linear accelerator.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA08

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Received ※ 29 September 2021 — Revised ※ 30 September 2021 — Accepted ※ 07 October 2021 — Issued ※ 09 October 2021

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MOPSA49

DC140 Cyclotron, Trajectory Analysis of Beam Acceleration and Extraction

cyclotron, acceleration, extraction, operation

205

I.A. Ivanenko, N.Yu. Kazarinov
JINR, Dubna, Moscow Region, Russia
V.I. Lisov
JINR/FLNR, Moscow region, Russia

At the present time, the activities on creation of the new heavy-ion isochronous cyclotron DC140 are carried out at Joint Institute for Nuclear Research. DC140 facility is intended for SEE testing of microchip, for production of track membranes and for solving of applied physics problems. Cyclotron will produce accelerated beams of ions A/Z= 5 - 5.5 and 7. 5 - 8.25 with a fixed beam energy 4.8 MeV/n and 2.124 MeV/n respectively. The variation of operation modes is provided by changing of magnetic field in the range 1.4T - 1.55T with fixed generator frequency 8.632 MHz. In this report, the results of design and simulation of the beam acceleration and extraction are presented.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA49

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Received ※ 12 September 2021 — Revised ※ 15 September 2021 — Accepted ※ 20 September 2021 — Issued ※ 02 October 2021

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MOPSA50

Axial Injection System of DC140 Cyclotron of FLNR JINR

cyclotron, ECR, radiation, solenoid

209

N.Yu. Kazarinov, V. Bekhterev, G.G. Gulbekyan, I.A. Ivanenko, I.V. Kalagin, S.V. Mitrofanov, N.F. Osipov, V.A. Semin
JINR, Dubna, Moscow Region, Russia
V.I. Lisov
JINR/FLNR, Moscow region, Russia

Flerov Laboratory of Nuclear Reaction of Joint Institute for Nuclear Research continues the works under creating of FLNR JINR Irradiation Facility based on the cyclotron DC140. The facility will have three experimental beam lines for SEE testing of microchips, for production of track membranes and for solving of applied physics problems. The injection into cyclotron will be realized from the external room temperature 18 GHz ECR ion source. The systems of DC140 cyclotron such as axial injection, main magnet, RF- and extraction systems and beam lines are the reconstruction of the DC72 cyclotron ones. The acceleration in DC140 cyclotron is carried out for two values of harmonic number h = 2,3 of heavy ions with mass-to-charge ratio A/Z within two intervals 5 - 5.5 and 7.5 - 8.25 up to two fixed energies 2.124 and 4.8 MeV per unit mass, correspondingly. The intensity of the accelerated ions will be about 1 pmcA for light ions (A<86) and about 0.1 pmcA for heavier ions (A>132). The design of the axial injection system of the DC140 cyclotron is presented in this report.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-MOPSA50

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Received ※ 27 August 2021 — Revised ※ 07 September 2021 — Accepted ※ 10 September 2021 — Issued ※ 23 October 2021

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TUX01

Status of the HIAF Accelerator Facility in China

ECR, linac, cavity, vacuum

23

J.C. Yang, D.Q. Gao, Y. He, L.J. Mao, G.D. Shen, L.N. Sheng, L.T. Sun, Z. Xu, Y.Q. Yang, Y.J. Yuan
IMP/CAS, Lanzhou, People’s Republic of China

The High Intensity heavy-ion Accelerator Facility (HIAF) is under constructed at IMP in China. The HIAF main feature is rapid acceleration of ions in the booster synchrotron ring (BRing) with the ramping rate up to 12 T/s. The challenges are related to the systems RF cavities, dipole power supplies, vacuum etc. Works on key prototypes of the HIAF machine are ongoing at IMP. In this paper, the test results of the power supplies, RF cavities and vacuum chambers are presented. As the construction of the HIAF facility has started, an overview of the hardware developments will also be reported.

Slides TUX01 [17.099 MB]

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reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUX01

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Received ※ 13 September 2021 — Revised ※ 27 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 20 October 2021

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TUA02

Current Status of VEPP-5 Injection Complex

positron, operation, controls, electron

37

Yu.I. Maltseva, A.V. Andrianov, K.V. Astrelina, V.V. Balakin, A.M. Barnyakov, A.M. Batrakov, O.V. Belikov, D.E. Berkaev, D. Bolkhovityanov, F.A. Emanov, A.R. Frolov, G.V. Karpov, A.S. Kasaev, A.A. Kondakov, N.Kh. Kot, E.S. Kotov, G.Y. Kurkin, R.M. Lapik, N.N. Lebedev, A.E. Levichev, A.Yu. Martynovsky, P.V. Martyshkin, S.V. Motygin, A.A. Murasev, V. Muslivets, D.A. Nikiforov, A.V. Pavlenko, A.M. Pilan, Yu.A. Rogovsky, S.L. Samoylov, A.G. Tribendis, S. Vasiliev, V.D. Yudin
BINP SB RAS, Novosibirsk, Russia
A.V. Andrianov, V.V. Balakin, F.A. Emanov, E.S. Kotov, A.E. Levichev, Yu.I. Maltseva, D.A. Nikiforov, A.V. Pavlenko, Yu.A. Rogovsky
NSU, Novosibirsk, Russia
A.G. Tribendis
NSTU, Novosibirsk, Russia

VEPP-5 Injection Complex (IC) supplies VEPP-2000 and VEPP-4 colliders at Budker Institute of Nuclear Physics (BINP, Russia) with high energy electron and positron beams. Since 2016 the IC has shown the ability to support operation of both colliders routinely with maximum positron storage rate of 1.7·10¹⁰ e+/s. Stable operation at the energy of 430 MeV has been reached. Research on further improvements on the IC performance is carried out. In particular control system was improved, additional beam diagnostics systems were developed, monitoring of RF system was upgraded. In this paper, the latest achieved IC performance, operational results and prospects are presented.

Slides TUA02 [2.966 MB]

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reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUA02

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Received ※ 28 September 2021 — Revised ※ 01 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 11 October 2021

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TUPSB10

Modeling of the Spin-Navigator Method for Manipulating the Beam Polarization in a Spin-Transparent Storage Ring

polarization, lattice, storage-ring, closed-orbit

251

A.E. Aksentyev, A.A. Melnikov, V. Senichev
RAS/INR, Moscow, Russia
A.E. Aksentyev
MEPhI, Moscow, Russia
V. Ladygin
JINR, Dubna, Moscow Region, Russia

A method for manipulating the orientation of the beam polarization axis based on using the so-called "spin-navigator" technique in a storage ring operating in the spin-transparent regime has been modelled. The beam particles’ spin- and orbital dynamics have been numerically investigated with the purpose of determining the method’s feasibility; the latter’s effect on spin-decoherence has been studied also.

Poster TUPSB10 [1.848 MB]

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reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB10

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Received ※ 24 September 2021 — Accepted ※ 29 September 2021 — Issued ※ 06 October 2021

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TUPSB37

Modernization of the ECR Ion Source DECRIS-2M. Results of the First Tests.

ECR, ECRIS, ion-source, plasma

307

A.E. Bondarchenko, S.L. Bogomolov, A.A. Efremov, V.N. Loginov, V. Mironov, D.K. Pugachev
JINR, Dubna, Moscow Region, Russia

The article describes the design of the modernized ECR ion source DECRIS-2M. The upgrade consists in increasing the magnetic field to improve plasma confinement and improve the source parameters. The modernization also made it possible to increase the inner diameter of the plasma chamber and replace the coaxial microwave power input by a waveguide. Redesigned injection chamber significantly expands the possibilities of production ions of solids using different methods. The article also presents the first results of experiments production of Ar, Xe and Bi ion beams from a modernized ion source. The results demonstrate substantial increase of the ion beams intensity.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB37

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Received ※ 06 September 2021 — Revised ※ 21 September 2021 — Accepted ※ 23 September 2021 — Issued ※ 18 October 2021

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TUPSB40

He⁺ Ion Source for the NICA Injection Complex

ion-source, cathode, plasma, LEBT

316

B.V. Golovenskiy, V.A. Monchinsky
JINR, Dubna, Moscow Region, Russia
A.M. Bazanov, A.S. Bogatov, D.E. Donets, D.S. Letkin, D.O. Leushin, K.A. Levterov, V.V. Mialkovskiy, D.O. Ponkin, I.V. Shirikov
JINR/VBLHEP, Dubna, Moscow region, Russia

A mono-ion source of single-charged helium of high intensity has been created to confirm the declared parameters of Heavy Ion Linear Accelerator (HILAC) and for the injection into superconducting synchrotron (SC) Booster during the first run. The paper presents the design of the He⁺ ion source, test bench for the TOF measurements and acceleration beam developed at VBLHEP, JINR. The results of the tests of the source are presented. During the tests the intense beams of ions 50 mA of He⁺ were produced.

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reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB40

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Received ※ 25 September 2021 — Revised ※ 08 October 2021 — Accepted ※ 13 October 2021 — Issued ※ 18 October 2021

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TUPSB43

Optimization of the RF-Gun With Photocathode at Operating Frequency 2800 MHz for the New Injection Linac for USSR Project

gun, simulation, beam-loading, cathode

319

Yu.D. Kliuchevskaia, S.M. Polozov
MEPhI, Moscow, Russia
S.M. Polozov
NRC, Moscow, Russia

The beam dynamics analysis of the RF-gun with photocathode for Russian 4th generation light source Ultimate Source of Synchrotron Radiation (USSR-4) was done to chose the optimal length of the section and cell’s number and also to define optimal accelerating gradient and injection phase. The simulation of electrodynamics parameters and RF field distribution in the RF-gun based on 3.5-, 5.5- and 7.5-cell pi-mode standing wave accelerating structure at operating frequency 2800 MHz was done. The influence of the beam loading effect on the field amplitude and beam dynamics was the main purpose of study also. The beam dynamics simulation results will present in the report and optimal RF-gun parameters will discuss.

DOI •

reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-TUPSB43

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Received ※ 15 September 2021 — Revised ※ 29 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 23 October 2021

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WEA01

Beam Transfer Systems of NICA Facility: from HILAC to Booster

booster, septum, power-supply, beam-transport

61

A. Tuzikov, A.M. Bazanov, A.V. Butenko, D.E. Donets, A.A. Fateev, A.R. Galimov, B.V. Golovenskiy, E.V. Gorbachev, A. Govorov, S.Yu. Kolesnikov, K.A. Levterov, D.A. Lyuosev, I.N. Meshkov, H.P. Nazlev, D.O. Ponkin, V.V. Seleznev, V.S. Shvetsov, A.O. Sidorin, A.I. Sidorov, A.N. Svidetelev, E. Syresin, V.I. Tyulkin
JINR, Dubna, Moscow Region, Russia
A.P. Kozlov, A.S. Petukhov, G.S. Sedykh
JINR/VBLHEP, Moscow, Russia
A.O. Sidorin
Saint Petersburg State University, Saint Petersburg, Russia

New accelerator complex is being constructed by Joint Institute for Nuclear Research (Dubna, Russia) in frame of Nuclotron-based Ion Collider fAcility (NICA) project. The NICA layout includes new Booster and existing Nuclotron synchrotrons as parts of the heavy ion injection chain of the NICA Collider as well as beam transport lines which are the important link for the whole accelerator facility. Designs and current status of beam transfer systems in the beginning part of the NICA complex, which are partially commissioned, are presented in this paper.

Slides WEA01 [26.886 MB]

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reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEA01

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Received ※ 07 October 2021 — Revised ※ 08 October 2021 — Accepted ※ 13 October 2021 — Issued ※ 22 October 2021

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WEA02

Acceleration the Beams of He⁺ and Fe14+ Ions by HILAC and its Injection into NICA Booster in its Second Run

ion-source, booster, laser, heavy-ion

65

K.A. Levterov, V.P. Akimov, A.M. Bazanov, A.V. Butenko, D.E. Donets, D.S. Letkin, D.O. Leushin, D.A. Lyuosev, A.A. Martynov, V.V. Mialkovskiy, D.O. Ponkin, I.V. Shirikov, A.O. Sidorin, A. Tuzikov
JINR/VBLHEP, Dubna, Moscow region, Russia
D. Egorov, A.R. Galimov, B.V. Golovenskiy, A. Govorov, V.V. Kobets, A.D. Kovalenko, V.A. Monchinsky, E. Syresin, G.V. Trubnikov
JINR, Dubna, Moscow Region, Russia

Injector of NICA accelerating facility based on the Heavy Ion Linear Accelerator (HILAC) is aimed to inject the heavy ions having atomic number A~200 and ratio A/Z - 6.25 produced by ESIS ion source accelerated up to the 3.2 MeV for the injection into superconducting synchrotron (SC) Booster. The project output energy of HILAC was verified on commissioning in 2018 using the beams of carbon ions produced with the Laser Ion Source and having ratio A/Z=6 that is close to the project one. Beams of He¹⁺ ions were injected into Booster in its first run and accelerated in 2020. In 2021 ions of Fe¹⁴⁺ produced with the LIS were injected and accelerated up to 200 MeV/u. Beam formation of Fe ions and perspectives of using LIS for the production the ions with high atomic mass A and ratio A/Z matching to HILAC input parameters are described.

Slides WEA02 [12.908 MB]

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reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEA02

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Received ※ 07 October 2021 — Revised ※ 08 October 2021 — Accepted ※ 13 October 2021 — Issued ※ 14 October 2021

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WEA03

200 MeV Linac Development for the SKIF Light Source Injector

linac, electron, bunching, gun

68

M.V. Arsentyeva, A.V. Andrianov, A.M. Barnyakov, D.I. Chekmenyov, A.E. Levichev, O.I. Meshkov, D.A. Nikiforov, O.A. Pavlov, I.L. Pivovarov, S.L. Samoylov, V. Volkov
BINP SB RAS, Novosibirsk, Russia

A new synchrotron light source SKIF of the 4th gen-eration is construction at Budker institute of nuclear physics (Novosibirsk, Russia). It consists of the main ring, the booster ring and the linear accelerator. This paper presents design of the linear accelerator which is expected to provide electron beams with the energy of 200 MeV. Construction of the linear accelerator is discussed. Description of the linear accelerator main systems is presented.

Slides WEA03 [4.794 MB]

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reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEA03

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Received ※ 20 September 2021 — Revised ※ 01 October 2021 — Accepted ※ 09 October 2021 — Issued ※ 16 October 2021

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WEPSC14

Booster RF System First Beam Tests

booster, controls, acceleration, cavity

370

A.Yu. Grebentsov, O.I. Brovko, A.V. Butenko, V.A. Gerklotts, A.M. Malyshev, V.D. Petrov, O.V. Prozorov, E. Syresin, A.A. Volodin
JINR, Dubna, Moscow Region, Russia
A.M. Batrakov, S.A. Krutikhin, G.Y. Kurkin, V.M. Petrov, A.M. Pilan, E. Rotov, A.G. Tribendis
BINP SB RAS, Novosibirsk, Russia
G.A. Fatkin
NSU, Novosibirsk, Russia

The project NICA is being constructed in JINR, to provide collisions of heavy ion beams in the energy range from 1 to 4.5 GeV/u at the luminosity level of 1·1027 cm^-2·s⁻¹. A key element in the collider injection chain is the Booster a cycling accelerator of ions 197Au³¹⁺. The injection energy of particles is 3.2 MeV/u, extraction energy is 600MeV/u. Two Booster RF stations provide 10 kV of acceleration voltage. The frequency range from 587 kHz to 2526 kHz at the operation of the stations in the injector chain. The RF stations were fabricated in the Budker Institute of Nuclear Physics. The main design features and parameters of the first beam tests of the Booster RF system are discussed in this paper.

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reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC14

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Received ※ 17 September 2021 — Revised ※ 27 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 16 October 2021

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WEPSC15

Barrier Station RF1 of the NICA Collider. Design Features and Influence on Beam Dynamics

collider, impedance, simulation, space-charge

373

A.M. Malyshev, A.A. Krasnov, Ya.G. Kruchkov, S.A. Krutikhin, G.Y. Kurkin, A.Yu. Martynovsky, N.V. Mityanina, S.V. Motygin, A.A. Murasev, V.N. Osipov, V.M. Petrov, A.M. Pilan, E. Rotov, V.V. Tarnetsky, A.G. Tribendis, I.A. Zapryagaev, A.A. Zhukov
BINP SB RAS, Novosibirsk, Russia
O.I. Brovko, I.N. Meshkov, E. Syresin
JINR/VBLHEP, Moscow, Russia
I.N. Meshkov
Saint Petersburg State University, Saint Petersburg, Russia
E. Rotov
NSU, Novosibirsk, Russia
A.G. Tribendis
NSTU, Novosibirsk, Russia

This paper reports on the design features and con-struction progress of the barrier bucket RF systems for the NICA collider being built at JINR, Dubna. Each of two collider rings has three RF systems named RF1 to 3. RF1 is a barrier bucket system used for particles capturing and accumulation during injection, RF2 and 3 are resonant systems operating at 22nd and 66th harmonics of the revolution frequency and used for the 22 bunches formation. The RF systems are de-signed by Budker INP. Both RF1 stations were manu-factured, delivered to JINR and tested at the stand. The test results are presented in the article, as well as some results of calculating the effect of the RF1 system on the beam dynamics.

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reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC15

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Received ※ 24 September 2021 — Revised ※ 26 September 2021 — Accepted ※ 27 September 2021 — Issued ※ 18 October 2021

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WEPSC56

Beam Parameters Measurement and Control Software Tools for VEPP-5 Injection Complex Damping Ring

damping, software, software-tool, operation

443

V.V. Balakin, D.E. Berkaev, F.A. Emanov
BINP SB RAS, Novosibirsk, Russia

Beam parameters control and operation software tools for BINP VEPP-5 Injection Complex Damping ring consisting of two parts were developed. Beam parameters control includes processing of measured turn-by-turn beam coordinates from all Damping ring beam position monitors and displaying such features as tunes and beam position into vacuum chamber. This part gives an opportunity to measure Damping ring response matrices and carry out its processing too. Beam parameters operation is based on knobs creating. Knob is combination of accelerator control elements, which performs an isolated shift of one selected parameter, e.g. only vertical betatron tune. This part is devoted to their creation and application on Injection Complex VEPP-5. This paper presents review of developed software tools and their application result on VEPP-5 Injection Complex: beam position adjustment via response matrix measurements and quantification the amount of Damping ring captured particles during the injection process depending on beam tunes.

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reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-WEPSC56

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Received ※ 06 September 2021 — Accepted ※ 27 September 2021 — Issued ※ 16 October 2021

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FRA01

Peculiarities of Producing 48Ca, 48Ti, 52Cr Beams at the DC-280 Cyclotron

ECR, cyclotron, experiment, acceleration

93

K. Gikal, S.L. Bogomolov, I.A. Ivanenko, N.Yu. Kazarinov, D.K. Pugachev, V.A. Semin
JINR, Dubna, Moscow Region, Russia
V.I. Lisov, A.A. Protasov
JINR/FLNR, Moscow region, Russia

The first beam of 84Kr¹⁴⁺ ions was accelerated in the DC-280 on December 26, 2018 and extracted to the ion transport channel on January 17, 2019. In March 2019, beams of accelerated 84Kr⁺14 ions with intensity of 1.36 pmkA and 12C⁺2 ions with and intensity of 10 pmkA were extracted from the DC-280 to the beam transport channel with energy about 5.8 MeV/nucleon. In 2020-2021 years, beams of 48Ca⁷⁺,10+ ions with intensity up to 10,6 pmkA were accelerated and 7,1 pmkA were extracted from the DC-280 to the beam transport channel with energy about 4,51 - 5,29 MeV/nucleon. In 2021 year, beams of accelerated 52,54Cr¹⁰⁺ ions with intensity up to 2,5 pmkA were extracted from the DC-280 to the beam transport channel with energy about 5,05 MeV/nucleon and beams of 48Ti⁷⁺ with intensity up to 1pmkA and with energy about 4,94 MeV/nucleon The main task of the new accelerator is implementation of the long-term program of researches on the SHE Factory aimed on synthesis of new elements (Z>118) and detailed studying of nuclear- physical and chemical properties of earlier opened 112-118 ones.

Slides FRA01 [9.228 MB]

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reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-FRA01

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Received ※ 18 September 2021 — Revised ※ 25 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 16 October 2021

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FRA02

Cyclotron of Multicharged Ions

cyclotron, vacuum, resonance, radiation

96

Yu.K. Osina, A. Akimova, A.V. Galchuck, Yu.N. Gavrish, S.V. Grigorenko, V.I. Grigoriev, M.L. Klopenkov, R.M. Klopenkov, L.E. Korolev, K.A. Kravchuk, A.N. Kuzhlev, I.I. Mezhov, V.G. Mudrolyubov, K.E. Smirnov, Yu.I. Stogov, S.S. Tsygankov, M.V. Usanova
NIIEFA, St. Petersburg, Russia

The JSC "NIIEFA" is designing a cyclotron system intended to accelerate ions with a mass-to-charge ratio of 3-7 in the energy range of 7.5-15 MeV per nucleon. The variety of ions, the range of changes in their energy, and the intensity of the beams provide conditions for a wide range of basic and applied research, including for solving a number of technological tasks. The cyclotron electromagnet has an H-shaped design with a pole diameter of 4 meters and a four-sector mag-netic structure. In the basic mode, the dependence of the induction on the radius corresponding to the isochronous motion is realized by turning on the main coil only through the shape of the central plugs, sector side plates, and sector chamfers. For other modes of isochronous ac-celeration, the current in the main coil is changed and cor-rection coils are tuned. The resonance system consists of two resonators with an operating frequency adjustable from 13 to 20 MHz. The final stage of the RF generator is installed close to the resonator and is connected to it by a conductive power input device. The external injection system generates and separates ions with a given A/z ratio. The injection energy is chosen such that the Larmor radius is constant, which allows us-ing an inflector of unchanged geometry for the entire list of ions. The transportation system forms beams of accelerated ions with specified parameters and delivers them to sample irradiation devices. Computer control of the cyclotron is provided.

Slides FRA02 [11.588 MB]

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reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-FRA02

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Received ※ 24 September 2021 — Revised ※ 29 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 20 October 2021

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FRB05

Updated Status of Protom Synchrotrons for Radiation Therapy

proton, synchrotron, radiation, extraction

120

A.A. Pryanichnikov, V. Alexandrov, V.E. Balakin, A.I. Bazhan, Belikhin, M.A. Belikhin, V.I. Chashurin, P.A. Lunev, A.E. Shemyakov, A.I. Shestopalov
PhTC LPI RAS, Protvino, Russia
V. Alexandrov, V.E. Balakin, A.I. Bazhan, Belikhin, M.A. Belikhin, P.A. Lunev, A.A. Pryanichnikov, A.E. Shemyakov, A.I. Shestopalov
Protom Ltd., Protvino, Russia

Physical-Technical Center of P.N. Lebedev Physical Institute of RAS and Protom Ltd. are engaged in development and implantation of synchrotrons for proton therapy into clinical practice. There are two proton therapy complexes "Prometheus" in Russia. That are fully developed and manufactured at Physical-Technical Center and Protom. Every day patients with head and neck cancer get treatment using "Prometheus" at the A. Tsyb Medical Radiological Research Center. At the moment these facilities together have accumulated more than 5 years of clinical experience. Two facilities are based on the Protom synchrotrons in the USA. One operates at the McLaren Hospital PT Center, it started to treat patients in 2018. Another one is as a part of the single-room proton therapy system "Radiance330" in Massachusetts General Hospital, that went into clinical operations in 2020. The first Israel proton therapy complex based on Protom synchrotron was launched in 2019. Protom facilities provide full stack of modern proton therapy technologies such as IMPT and pencil beam scanning. Key features of Protom synchrotron: low weight, compact size and low power consumption allow it to be placed in conventional hospitals without construction of any special infrastructure. This report presents current data on accelerator researches and developments of Physical-Technical Center and Protom Ltd. In addition, it provides data on the use of Protom based proton therapy complexes under the clinical conditions.

Slides FRB05 [8.949 MB]

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reference for this paper ※ doi:10.18429/JACoW-RuPAC2021-FRB05

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Received ※ 19 September 2021 — Revised ※ 30 September 2021 — Accepted ※ 09 October 2021 — Issued ※ 11 October 2021

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