Keyword: ion
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WECAMH05 Optimization and Simuations of Beam Dynamics in APF Accelerators linac, simulation, acceleration, rfq 70
 
  • D.A. Ovsyannikov, V.V. Altsybeyev
    Saint Petersburg State University, Saint Petersburg, Russia
  
  Design problem of APF accelerator for ensurance enough high quality of output beam is considered. As we know, this problem is not easy because we have to achieve stability of longitudinal and transversal motions simultaneously. One of the first significant results in this subject were obtained by V. V. Kushin. In this work the problems of optimizations of intense ion beam are considered. The optimazation approaches for some beam characteristics improving (acceleration and transmission rates) are considered. Obtained results are confirmed by particle in cell simulations.  
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WEYMH01 Development of MHF Conception at ITEP proton, experiment, linac, extraction 73
 
  • N.N. Alexeev, A. Andreev, A. Kolomiets, V.I. Nikolaev, Yu.A. Satov, A. Shumshurov, V. Stolbunov, A. Zarubin
    ITEP, Moscow, Russia
  
  The conception of Multi-purpose Hadrons Facility (MHF) began to be discussed at ITEP in the late ~2010s when ITEP-TWAC facility was intensively exploited for physical and applied research with the use of accelerated proton and ion beams varied in a wide range of operating parameters. Technological developments have continued to expand the scope of beams utilizing in diverse fields of science, medicine, industry and education. The ITEP-TWAC facility was decommissioned in 2012 and continues to remain in a state of waiting for reasonable decision on its recovery and upgrade, but conception of MHF is alive and aims at creating a technological base of particle accelerator technique intended for generation of proton and ion beams, covering the needs of many areas of fundamental, applied and technological research and industrial applications, represents a significant scientific and practical interest for modern and future engineering community. Created MHF environment should obviously be friendly and flexible for collaboration with industry, universities, and other national and foreign labs to provide continuous intelligent and technological progress. The key components of the MHF mission and vision are presented.  
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WECBMH01 First Cold Tests of the Superconducting cw Demonstrator at GSI cavity, linac, electron, cryomodule 83
 
  • F.D. Dziuba, M. Amberg, K. Aulenbacher, W.A. Barth, V. Gettmann, M. Miski-Oglu
    HIM, Mainz, Germany
  • M. Amberg, M. Basten, M. Busch, H. Podlech, M. Schwarz
    IAP, Frankfurt am Main, Germany
  • K. Aulenbacher
    IKP, Mainz, Germany
  • W.A. Barth, M. Heilmann, S. Mickat, S. Yaramyshev
    GSI, Darmstadt, Germany
  • W.A. Barth, S. Yaramyshev
    MEPhI, Moscow, Russia
  
  The future experimental program of super heavy element synthesis at GSI desires high intense heavy ion beams at or above the coulomb barrier, exceeding the capabilities of the GSI-UNILAC (Universal Linear Accelerator). Additionally, the existing GSI accelerator chain will be used as an injector for FAIR (Facility for Antiproton and Ion Research) primarily providing high power heavy ion beams at a low repetition rate. Due to this limitations a new dedicated superconducting (sc) continuous wave (cw) linac is proposed to keep the Super Heavy Element (SHE) research program at GSI competitive. The construction of the first linac section has been finished in the 3rd quarter of 2016. It serves as a prototype to demonstrate its reliable operability in a realistic accelerator environment. This demonstrator cryomodule comprises the sc 217 MHz crossbar-H-mode (CH) multigap cavity as the key component of the whole project and two sc 9.3 T solenoids. The performance of the cavity has been extensively tested at cryogenic temperatures. In this contribution the measurement results of initial cold tests will be presented.  
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WEZMH02 Radiocarbon analysis of different samples at BINP AMS extraction, ion-source, vacuum, detector 95
 
  • S. Rastigeev, A.R. Frolov, A.D. Goncharov, V. Klyuev, E.S. Konstantinov, L.A. Kutnykova, V.V. Parkhomchuk, N. Petrischev, A.V. Petrozhitskii
    BINP SB RAS, Novosibirsk, Russia
  
  The accelerator mass spectrometer (AMS) created at BINP is used for biomedical, archaeological and other applications. Present status and experimental results are described.  
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THCAMH04 MCC-30/15 Cyclotron-based System for Production of Radionuclides Project. cyclotron, target, diagnostics, operation 114
 
  • A.P. Strokach, Yu.N. Gavrish, S.V. Grigorenko, V.I. Grigoriev, M.L. Klopenkov, R.M. Klopenkov, V.G. Mudrolyubov, G.V. Muraviov, V.I. Nikishkin, V.I. Ponomarenko
    NIIEFA, St. Petersburg, Russia
  
  The projected MCC-30/15 cyclotron system is intended for operation in high-technology nuclear medicine centers. The system consists of a cyclotron, target systems for production of radionuclides in liquid, gaseous and solid states and a beamline for transport of accelerated ions to final units. The updated MCC-30/15 cyclotron with new systems for external injection, RF power supply and acceleration will ensure accelerated proton and deuteron beams in energy ranges of 15 - 30 and 9 - 15 MeV and currents not lower than 200 and 70 mkA respectively. Target systems are equipped with systems for remote replacement of gaseous and liquid targets. Modular configuration of the beamline will allow the production of isotopes and carrying out of researches to be performed in separate experimental halls.  
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THCAMH05 The CC-18/9M Cyclotron System for Production of Isotopes for PET target, cyclotron, proton, diagnostics 117
 
  • R.M. Klopenkov, M.A. Emeljanov, A.V. Galchuck, Yu.N. Gavrish, P.A. Gnutov, S.V. Grigorenko, V.I. Grigoriev, M.L. Klopenkov, L.E. Korolev, A.N. Kuzhlev, A.G. Miroshnichenko, V.G. Mudrolyubov, G.V. Muraviov, V.I. Nikishkin, V.I. Ponomarenko, K.E. Smirnov, Yu.I. Stogov, A.P. Strokach, S.S. Tsygankov, O.L. Veresov
    NIIEFA, St. Petersburg, Russia
  • I.A. Ashanin, I.P. Grigoryev, A.S. Guchkin
    CHTD, Moscow, Russia
  
  The CC-18/9M cyclotron system has been designed, manufactured and delivered to JSC "NIITFA", Moscow to be operated in a pilot PET center. Acceptance tests have been conducted; design parameters of the updated cyclotron have been obtained: energy variation of accelerated proton and deuteron beams within the ranges of 12 - 18 and 6 - 9 MeV with currents of 150 and 50 mkA respectively. For the first time in NIIEFA practice the cyclotron is equipped with a target system intended for the production of F-18 and C-11 radionuclides for PET. At present the cyclotron system in the PET center is put into commercial operation.  
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THCAMH06 Gantry Free Transport Line for a Proton/Ion Therapy proton, target, controls, radiation 120
 
  • M.M. Kats
    ITEP, Moscow, Russia
  
  For a long time a gantry was considered as a mandatory element for proton/ion therapy facility. However medics from MGH (Boston) suggested alternative concept which leads to decrease both cost and size of the facility*. The concept is based on the following provisions: - immovable isocenter; - active scanning of a target volume; - different positions of patients at different fractions: - using CT on the place of irradiation after each change of positions of the patient for improvement plan; - using small change direction of the beam (like ±100). The "Planar isocentric system" developed by author can be used to enlarge the flexibility of the concept**. It's relatively chip, small and can be realized for short time. It can be used for treatment for 90% of localizations. The system can replace gantry in centers of proton/ion therapy providing significant decreasing of treatment price. The details of the system are presented and discussed.
* Susu Yan et al, MGH Reassessment of the Necessity of the Proton Gantry: Analysis of Beam Orientations From 4332 Treatments.., Radiation Oncology, May 1, 2016 V. 95, Issue 1, P.224.
** M.M.Kats, Planar isocentric system instead of gantry, PTCOG55, 2016. 		 
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THYMH02 Hadron Therapy Research and Applications at JINR cyclotron, proton, extraction, acceleration 123
 
  • G. Shirkov, S. Gurskiy, O. Karamyshev, G.A. Karamysheva, N.A. Morozov, E.V. Samsonov, S.G. Shirkov, G.V. Trubnikov
    JINR, Dubna, Moscow Region, Russia
  • D.V. Popov
    JINR/DLNP, Dubna, Moscow region, Russia
  
  JINR has the unique experience in cancer treatment with proton beam during about 50 years. In 2005 the collaboration with IBA (Belgium) was established. During these years the technical design of the first carbon superconducting cyclotron C400 was successfully created, the construction of serial proton cyclotron C230 was significantly improved and the fist modernized cyclotron C235 was assembled, debugged and put in the test operation in Dubna in 2013. This C235 will be used soon in the first Russian medical center with proton therapy in Dimitrovgrad. In 2015 the joint project with ASIPP (Hefei, China) on design and construction of superconducting proton cyclotron SC200 was started. Two samples of SC200 should be created according to the Collaboration Agreement between JINR and ASIPP. One will be used for proton therapy in Hefei and the second one should be used to replace the synchrocyclotron Phasotron in investigations on proton therapy at JINR.  
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THCEMH01 Vacuum Insulation Tandem Accelerator: Progress and Prospects neutron, vacuum, tandem-accelerator, proton 147
 
  • S.Yu. Taskaev, A.A. Ivanov, D.A. Kasatov, A.N. Makarov, Y.M. Ostreinov, I.M. Shchudlo, I.N. Sorokin, T. Sycheva
    BINP SB RAS, Novosibirsk, Russia
  • T.A. Bykov
    Budker INP & NSU, Novosibirsk, Russia
  • A.A. Ivanov, Ya.A. Kolesnikov, A.M. Koshkarev, E.O. Sokolova, S.Yu. Taskaev
    NSU, Novosibirsk, Russia
  
  Funding: The study was supported by the grants from the Ministry of Science of the Russian Federation, the Russian Science Foundation, Budker Institute of Nuclear Physics and Novosibirsk State University.
A promising method of treatment of many malignant tumors is the boron neutron capture therapy (BNCT)*. It provides a selective destruction of tumor cells by prior accumulation of a stable boron-10 isotope inside them and subsequent irradiation with epithermal neutrons. It is expected that accelerator based neutron sources will be created for the clinical practice. One such source could be an original source of epithermal neutrons**, created in BINP. To obtain proton beam a new type of particle accelerator is used - tandem accelerator with vacuum insulation. Generation of neutrons is carried out as a result of the threshold reaction 7Li(p, n)7Be. During 2015-2016 in the construction of tandem accelerator with vacuum insulation several changes were made. This allowed us to suppress the unwanted flow of charged particles in the accelerator, to improve its high-voltage stability, and to increase the proton beam current from 1.6 to 5 mA. Such current value is sufficient for BNCT. The report describes in detail the modernization of the accelerator, presents and discusses the results of experiments on obtaining the proton beam and the formation of neutron flux using lithium target, and declares our prospective plans. The obtained neutron beam meets the requirements of BNCT: the irradiation of cell cultures provides the destruction of cells with boron and preservation of cells without boron. Irradiation of immunodeficient mice with grafted glioblastoma results in their recovery.
*Neutron Capture Therapy. Principles and Applications. Eds: W. Sauerwein, A. Wittig, R. Moss, Y. Nakagawa. Springer, 2012.
**S. Taskaev. Accelerator based epithermal neutron source. Physics of Particles and Nuclei 46 (2015) 956-990. 		 
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FRCAMH02 Commissioning of New Light Ion RFQ Linac and First Nuclotron Run with New Injector rfq, linac, ion-source, vacuum 153
 
  • A.V. Butenko, A.M. Bazanov, D.E. Donets, A.D. Kovalenko, K.A. Levterov, D.A. Lyuosev, A.A. Martynov, V.V. Mialkovskiy, D.O. Ponkin, R.G. Pushkar, V.V. Seleznev, K.V. Shevchenko, I.V. Shirikov, A.O. Sidorin
    JINR/VBLHEP, Moscow, Russia
  • S.V. Barabin, A.V. Kozlov, G. Kropachev, T. Kulevoy, V.G. Kuzmichev
    ITEP, Moscow, Russia
  • A. Belov
    RAS/INR, Moscow, Russia
  • V.V. Fimushkin, B.V. Golovenskiy, A. Govorov, V. Kobets, V.A. Monchinsky, A.V. Smirnov, G.V. Trubnikov
    JINR, Dubna, Moscow Region, Russia
  • S.M. Polozov
    MEPhI, Moscow, Russia
  
  The new accelerator complex Nuclotron-based Ion Collider fAcility (NICA) is now under development and construction at JINR, Dubna. This complex is assumed to operate using two injectors: the Alvarez-type linac LU-20 as injector of light ions, polarized protons and deuterons and a new linac HILAc - injector of heavy ions beams. Old HV for-injector of the LU-20, which operated from 1974, is replaced by the new RFQ accelerator, which was commissioned in spring 2016. The first Nuclotron technological run with new fore-injector was performed in June 2016. Beams of D+ and H2+ were successfully injected and accelerated in the Nuclotron ring. Main results of the RFQ commissioning and the first Nuclotron run with new for-injector is discussed in this paper.  
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FRCAMH03 Commissioning of the New Heavy Ion Linac at the NICA Project rfq, linac, ion-source, heavy-ion 156
 
  • A.V. Butenko, A.M. Bazanov, D.E. Donets, A.D. Kovalenko, K.A. Levterov, D.A. Lyuosev, A.A. Martynov, V.V. Mialkovskiy, V.V. Seleznev, K.V. Shevchenko, I.V. Shirikov, A.O. Sidorin
    JINR/VBLHEP, Moscow, Russia
  • B.V. Golovenskiy, A. Govorov, V. Kobets, V.A. Monchinsky, A.V. Smirnov, E. Syresin, G.V. Trubnikov
    JINR, Dubna, Moscow Region, Russia
  • H. Hoeltermann, H. Podlech, U. Ratzinger, A. Schempp
    BEVATECH, Frankfurt, Germany
  • D.A. Liakin
    ITEP, Moscow, Russia
  
  The new accelerator complex Nuclotron-based Ion Collider fAcility (NICA) is now under development and construction at JINR, Dubna. This complex is assumed to operate using two injectors: modernized old Alvarez-type linac LU-20 as injector of light polarized ions and a new Heavy Ion Linear Accelerator HILAc - injector of heavy ions beams. The new heavy ion linac accelerate ions with q/A values above 0.16 to 3.2 MeV/u is under commissioning. The main components are 4-Rod-RFQ and two IH - drift tube cavities is operated at 100.6 MHz. Main results of the HILAc commissioning with carbon beam from the laser ion source are discussed.  
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FRCAMH05 Booster Synchrotron at NICA Accelerator Complex booster, kicker, injection, dipole 160
 
  • A. Tuzikov, O.I. Brovko, A.V. Butenko, A.V. Eliseev, A.A. Fateev, V. Karpinsky, H.G. Khodzhibagiyan, S.A. Kostromin, I.N. Meshkov, V.A. Mikhaylov, A.O. Sidorin, A.I. Sidorov, A.V. Smirnov, E. Syresin, G.V. Trubnikov, V. Volkov
    JINR, Dubna, Moscow Region, Russia
  • O. Anchugov, V.A. Kiselev, D.A. Shvedov, A.N. Zhuravlev
    BINP SB RAS, Novosibirsk, Russia
  
  NICA is the new complex being constructed on the JINR aimed to provide collider experiments with ions up to aurum at energy of 4.5x4.5 GeV/u. The NICA layout includes 600 MeV/u Booster synchrotron as a part of the injection chain of the NICA Collider. The main goals of the Booster are the following: accumulation of 4E109 Au31+ ions; acceleration of the heavy ions up to energy required for effective stripping; forming of the required beam emittance with electron cooling system. The layout makes it possible to place the Booster having 210.96 m circumference and four fold symmetry lattice inside the yoke of the former Synchrophasotron. The features of the Booster, its main systems, their parameters and current status are presented in this paper.  
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FRCAMH07 NICA Collider Lattice Optimization collider, quadrupole, dipole, lattice 166
 
  • O.S. Kozlov, A.V. Butenko, H.G. Khodzhibagiyan, S.A. Kostromin, I.N. Meshkov, A.O. Sidorin, E. Syresin, G.V. Trubnikov
    JINR, Dubna, Moscow Region, Russia
  
  The Nuclotron-based Ion Collider fAcility (NICA) - accelerator complex is being constructed at JINR. It is aimed to the collider experiments with ions and protons and has to provide the ion-ion (Au+79) and ion-proton collision in the energy range of 1-4.5 GeV/amu and also polarized proton-proton and deuteron-deuteron collisions. Each of two collider ring has a racetrack shape with two bending arcs and two long straight sections. Beams are separated in vertical plane and come into collisions in two IPs. Dynamic aperture of the NICA collider has been studied for different parameters of the optics at IP. Effects of the fringe fields of structural elements are considered in the optimization of the collider lattice.  
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TUCASH03 High Efficiency Stripping Extraction on 80 MeV H-minus Isochronous Cyclotron in PNPI cyclotron, extraction, H-minus, acceleration 176
 
  • S.A. Artamonov, A.N. Chernov, E.M. Ivanov, G.A. Riabov, V.A. Tonkikh
    PNPI, Gatchina, Leningrad District, Russia
  
  H-minus cyclotron has the advantage that high intensity internal beam can be extracted from the acceleration chamber with practically 100% efficiency by transformation H-minus ions into H-plus ion by using thin foil. The extraction system is consists from the probe with stripping foil, extraction window in the vacuum chamber and two correct magnets to match the extracted beam with beam transport line. The beam optics calculations in the measured magnetic field make it possible to find optimal relative position of the extraction system elements as well the parameters of the extracted beam with energy 40 - 80 MeV. At present time the beam is extracted from the chamber with efficiency 100 % and there is good agreement with the optic calculations.  
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TUCASH05 The CC1-3 Cyclotron System. Installation and Test Results cyclotron, proton, vacuum, controls 182
 
  • V.G. Mudrolyubov, A.V. Antonov, M.A. Emeljanov, A.V. Galchuck, Yu.N. Gavrish, S.V. Grigorenko, V.I. Grigoriev, L.E. Korolev, M.T. Kozienko, A.N. Kuzhlev, A.G. Miroshnichenko, G.V. Muraviov, V.I. Nikishkin, V.I. Ponomarenko, K.E. Smirnov, Yu.I. Stogov, A.P. Strokach, S.S. Tsygankov, O.L. Veresov
    NIIEFA, St. Petersburg, Russia
  
  A unique CC1-3 cyclotron system has been installed in the Vinca Institute of Nuclear Sciences, Belgrade, Serbia to be used in the laboratory of nuclear-physical methods of the elemental analysis A compact cyclotron and a beam shaping system ensure an accelerated proton beam in a wide range of energies from 1 to 3 MeV with a spectrum width not more than 0.1%. Tests of the cyclotron system have been carried out at proton energies of 1.0, 1.7 and 3 MeV with the beam transport to the final diagnostic device.  
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THCBSH01 INR RAS Instrumentation for Bunch Shape and Beam Cross-Section Monitoring linac, electron, diagnostics, operation 204
 
  • S.A. Gavrilov, A. Feschenko, P.I. Reinhardt-Nickoulin
    RAS/INR, Moscow, Russia
  
  Instruments for bunch shape and beam cross-section diagnostics at ion linacs are as important as complicated devices. Widespread Bunch Shape Monitors developed in INR RAS are used during a linac commissioning and optimization of beam dynamics. Beam Cross-Section Monitors implemented at INR RAS linac provide efficient non-destructive beam tuning and control. Features of both monitors investigated in simulations and beam tests are described. A variety of experimental results are presented.  
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TUPSA011 Matching the Proton Beam by Means of Independently Phased Bunchers in CYCLINAC Concept cyclotron, proton, linac, simulation 234
 
  • V.S. Dyubkov, S.M. Polozov, K.E. Prianishnikov
    MEPhI, Moscow, Russia
  • S.M. Polozov
    ITEP, Moscow, Russia
  
  Nowadays a hadron therapy is one of the modern methods of a cancer treatment. For that purpose it is required that a proton beam, accelerated up to 250 MeV, penetrates on a depth about of 30 cm. It is known that linac, cyclotron and synchrotron can be used as a sources of proton/ion beams. The main linac advantages are a high beam quality and a possibility of beam energy variation but, on the other hand, initial low-energy part of a linac is markedly expensive. Production of mentioned beams is possible on the base of a concept called CYCLINAC, when a commercial cyclotron is used as an injector, in which protons are accelerated up to 20-30 MeV, for main linac. Matching the beam from a cyclotron with a linac input is the main problem of this concept. It is caused by difference of operating frequencies of cyclotron and linear accelerator as well as a high phase size of a bunch from the cyclotron. It is proposed to use the system of independently phased bunchers for beam matching. Solenoids are proposed to use for a limitation of transverse emittance growth. The BEAMDULAC-CYCLINAC program is developed for simulation of the self-consistent dynamics of proton beams in a matching channel. Results of beam dynamics simulation for CYCLINAC will be presented and discussed.  
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TUPSA015 Acceleration of Deuterons and Protons in Single RFQ Strucrure rfq, acceleration, focusing, proton 247
 
  • A.D. Ovsyannikov, D.A. Ovsyannikov, Y.A. Svistunov
    Saint Petersburg State University, Saint Petersburg, Russia
  • A.P. Durkin
    MRTI RAS, Moscow, Russia
  
  Some aspects of acceleration of protons and deuterons in single RFQ are considered. Usually vane voltage for protons must be two times less than vane voltage for deuterons. If space charge is significant vane voltage for protons can be too small to reach high efficiency of bunching and focusing of protons beam. It is shown that a rising of voltage up to nominal value for deuterons leads to increasing of capture and transmission for protons. Another problem is concerned with a choice of radial matching section parameters, which are optimal for both beams (proton and deuterons) simultaneously. Methods of optimization are discussed. Analysis of particles dynamics is illustrated by calculation's results.  
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TUPSA027 The Study of the Helical RF Resonator for the 300 keV Nitrogen Ion CW Implanter vacuum, simulation, impedance, rf-amplifier 270
 
  • N.V. Avreline
    TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
  • P.G. Alexey, S.M. Polozov
    MEPhI, Moscow, Russia
  
  The helical RF resonator for the single charged 300 keV nitrogen ion CW implanter was designed, simulated in CST Microwave Studio and the results were experimentally verified. The current setup of the implanter is described as well as possible modifications to accelerate ions of other types. The results of the field distribution's RF measurements and the results of the high-power test are also presented.  
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TUPSA038 The RF Power System for RFQ-Injector of Linac-20 rfq, DTL, high-voltage, acceleration 297
 
  • V.G. Kuzmichev, A.V. Kozlov, T. Kulevoy, S.M. Polozov, D.N. Selesnev, Yu. Stasevich
    ITEP, Moscow, Russia
  • A.V. Butenko
    JINR, Dubna, Moscow Region, Russia
  • T. Kulevoy, S.M. Polozov
    MEPhI, Moscow, Russia
  
  In the frame of the Nuclotron-M project the electrostatic injector of LU-20 is replaced by a RFQ accelerator, which has been developed in ITEP. The construction of 400 kW, 145 MHz RF system for RFQ-injector are described. Pa-rameters and test results of the RF power system operated on the resistive load and on RFQ during ion beam accele-ration are presented  
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TUPSA058 Production of Intense Beams of Iron Ions from ECR Ion Source by MIVOC Method at the Cyclotron DC-60 cyclotron, acceleration, ion-source, injection 328
 
  • A.E. Bondarchenko, V.N. Loginov
    JINR, Dubna, Moscow Region, Russia
  • V.V. Alexandrenko, I.A. Ivanov, S.G. Kozin, A.E. Ryskulov, Y.K. Sambayev, M.V. Zdorovets
    INP NNC RK, Almaty, Kazakhstan
  
  The report describes the experiments carried out in 2015 at the accelerator complex DC-60 of Astana branch of the INP (Alma-Ata, Kazakhstan Republic), to develop methods for production of intense beams of milticharged ions of iron with the use of volatile compounds (Metal Ions from Volatile Compounds - MIVOC). As a result of performed work for the first time at DC-60 cyclotron a beam of iron ions was obtained, acceleration mode of 56Fe10+ ions to the energy of 1.75 MeV / nucleon was optimized.  
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TUPSA059 Production of Intense Metal Ion Beams From ECR Ion Sources Using the MIVOC Method experiment, cyclotron, ion-source, ECR 330
 
  • A.E. Bondarchenko, S.L. Bogomolov, K.I. Kuzmenkov, V.Ya. Lebedev, V.N. Loginov
    JINR, Dubna, Moscow Region, Russia
  • Z. Asfari, B.J.P. Gall
    IPHC, Strasbourg Cedex 2, France
  
  The production of metal ion beams by electron cyclotron resonance (ECR) ion sources using the MIVOC (Metal Ions from Volatile Compounds) method is described. The method is based on the use of metal compounds which have high vapor pressure at room temperature, e.g., C2B10H12, Fe(C5H5)2, etc. Intense ion beams of B and Fe were produced using this method at the FLNR JINR cyclotrons. Experiments on the production of cobalt, chromium, vanadium, germanium, and hafnium ion beams were performed at the test bench of ECR ion sources. Main efforts were put into production and acceleration of 50Ti ion beams at the U-400 cyclotron. The experiments on the production of Ti ion beams were performed at the test bench using natural and enriched compounds of titanium (CH3)5C5Ti(CH3)3. All these efforts allowed the production of accelerated titanium and chromium ion beams at the U-400 cyclotron.  
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TUPSA061 Comparative Research of Low Energy Beam Transport Systems for H-minus Ion Beam emittance, solenoid, simulation, quadrupole 333
 
  • B.A. Frolov
    IHEP, Moscow Region, Russia
  • V.S. Klenov
    RAS/INR, Moscow, Russia
  
  The source of H-minus ions for the injection in LU-30 accelerator is being constructed at IHEP. A three-dimensional (3D)simulation code IBSimu has been utilized for modeling of the transport and matching system of beam from the H-minus ion source into RFQ. A magnetic low energy beam transport (LEBT) line consisting of two solenoids and LEBT consisting of six magnetic quadrupole lenses were analyzed. The particle data from the 50 mA 100 keV ion beam extraction system simulations were taken as the starting data for the LEBT simulations. The main objective of the project was to achieve the required Twiss parameters and to minimize emittance growth at RFQ entrance. The LEBT consisting of two solenoids is more convenient in adjustment and as simulation results have shown this system offers more acceptable beam characteristics at the match point in comparison with LEBT composed of quadrupole lenses.  
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WEPSB002 First Experimental Demonstration of the Extraction of Low Energy Beams from the ESR to the CRYRING@ESR extraction, septum, experiment, dipole 351
 
  • S.A. Litvinov, Z. Andelkovic, D. Beck, A. Bräuning-Demian, S. Fedotova, W. Geithner, F. Herfurth, R. Hess, C.M. Kleffner, I. Kraus, M. Lestinsky, F. Nolden, M. Steck, G. Vorobyev
    GSI, Darmstadt, Germany
  
  The CRYRING@ESR facility will provide the unique possibility for studying properties of highly charged cooled stable and short-lived ions stored at low energy for atomic and nuclear research within the FAIR project. Heavy ion beams will be stored, cooled and decelerated to energies between 10 and 4 MeV/u in the ESR and then delivered to the CRYRING@ESR. There is no dedicated kicker magnet for the fast extraction in this direction. However, a specially developed distorted closed orbit of the beam stored in the ESR in combination with the injection kicker has been suggested for the extraction and experimentally verified in 2014. In the first experiment the ion beam was extracted and transported over a distance of 20 m towards the CRYRING@ESR. In the 2016 machine development run the heavy ion beam was successfully extracted from the ESR and delivered to the first fluorescent screen inside CRYRING@ESR for the first time. Detailed ion-optical simulations as well as the experimental results will be discussed.  
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WEPSB008 About Behavior of Electrons and Ions in the Accelerating Interval electron, plasma, acceleration, vacuum 371
 
  • A.S. Chikhachev
    Allrussian Electrotechnical Institute, Moskow, Russia
  • H.Y. Barminova
    MEPhI, Moscow, Russia
  
  The behavior of electron-ion ensemble accelerated in the diode is studied. Hot electrons are described by means of the distribution function which is a solution of the collisionless kinetic function depending not only from integrals of motion. To describe the cold ions the hydrodynamics equations are used. The possibility of the ion-sound velocity excess of the ions is shown. The expression for the electron gas pressure is received. The dependence of relative density of the ions on the coordinate is discussed in the case of closed phase trajectories.  
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WEPSB036 Gold Ions Beam Losses at the Nuclotron Booster booster, vacuum, beam-losses, electron 440
 
  • A.V. Philippov, A. Tuzikov
    JINR/VBLHEP, Dubna, Moscow region, Russia
  
  The calculation results of the gold ions beam losses along the Nuclotron Booster perimeter are given. The presented results take the ion stimulated desorption from the cold surface of the vacuum chamber and collimation of charge-exchanged gold ions into account.  
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WEPSB037 Beam Transfer From Heavy-Ion Linear Accelerator HILAC Into Booster of NICA Accelerator Complex booster, injection, kicker, emittance 443
 
  • A. Tuzikov, A.V. Butenko, A.A. Fateev, S.Yu. Kolesnikov, I.N. Meshkov, V.A. Mikhaylov, V.S. Shvetsov, A.O. Sidorin, A.I. Sidorov, G.V. Trubnikov, V. Volkov
    JINR, Dubna, Moscow Region, Russia
  
  Designs of systems of ion beam transfer from the linear accelerator HILAC into the Booster of the NICA accelerator complex (JINR, Dubna) including the transport beam line HILAC-Booster and the beam injection system of the Booster are considered in the report. The proposed systems provide multivariant injection for accumulation of beams in the Booster with required intensity. Special attention is paid to various aspects of beam dynamics during its transfer. Main methods of beam injection into the Booster are described. These are single-turn, multiturn and multiple injection ones. Results of beam dynamics simulations are presented. Status of technical design and manufacturing of the systems' equipment is also highlighted.  
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WEPSB038 Multigap and Polyharmonic Bunching Systems at FLNR Cyclotrons cyclotron, injection, bunching, ECR 446
 
  • I.V. Kalagin, B. Gikal, G.G. Gulbekyan, S.V. Prokhorov
    JINR, Dubna, Moscow Region, Russia
  • N.N. Pchelkin
    JINR/FLNR, Moscow region, Russia
  
  Since 1997, different variants of bunching systems have been used at the axial injections of FLNR cyclotrons to increase ions capture into acceleration efficiency. Combination of two single gap Sine and Line bunchers are used at the axial injections of U400 and DC110 cyclotrons. Since 2015, a single gap double RF harmonic buncher has been installed into the upper part of the U400M injection in addition to the lower sine buncher, the experimental results will be presented. For the HV axial injection of the new DC280 cyclotron, two variants of polyharmonic bunchers will be used: a multigap buncher and a single gap one.  
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WEPSB040 Commissioning of the 60 keV Electron Cooler for the NICA Booster electron, vacuum, cathode, booster 452
 
  • A.V. Bubley, M.I. Bryzgunov, A.P. Denisov, A.D. Goncharov, V.M. Panasyuk, V.V. Parkhomchuk, V.B. Reva
    BINP SB RAS, Novosibirsk, Russia
  
  The 60 keV electron cooler for the NICA booster was designed and constructed at BINP SB RAS. The article describes results of various measurements obtained during its commissioning. Also some details of design and construction of the cooler are discussed.  
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WEPSB042 Commissioning of Electron Cooling Devices at HIRFL-CSR electron, experiment, operation, high-voltage 458
 
  • X.D. Yang, G.H. Li, J. Li, X.M. Ma, L.J. Mao, M.T. Tang, T.L. Yan
    IMP/CAS, Lanzhou, People's Republic of China
  
  Funding: National Natural Science Foundation of China, NSFC Grant No. 11375245
Electron cooling plays an important role in the Heavy Ion Research Facility of Lanzhou cooler storage ring(HIRFL-CSR). Two electron coolers were equipped in main ring(CSRm) and experimental ring(CSRe) in HIRFL-CSR respectively. Two electron cooling devices have commissioned for twelve years since they were installed and completed in 2004. The function and operation procedure of electron cooler were presented in this report. Their performance and the highlights of experiments results were described. Their commission and optimization were summarized here. The issues and troubles during the commission were enumerated and collected in this presentation. The future upgrade and improvement were suggested, and the new operation scenario and requirement were proposed. 		 
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WEPSB044 Design and Calculation of Cylindrical Electrostatic Deflector for the Transport Channel of the Heavy Ion Beam cyclotron, sextupole, quadrupole, heavy-ion 461
 
  • N.Yu. Kazarinov, I.V. Kalagin
    JINR, Dubna, Moscow Region, Russia
  • S.G. Zemlyanoy
    JINR/FLNR, Moscow region, Russia
  
  The cylindrical electrostatic deflector is used in the beam transport channel of GALS spectrometer that is created at U400M cyclotron in Flerov Lab of Nuclear Reaction of Joint Institute for Nuclear research. The design and calculation of the deflector are presented in this report. The angular length of the electrodes and gap between potential electrode and screen are found by using of the minimization procedure.  
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WEPSB045 The Way To Improve Conformity Of Proton Therapy proton, target, scattering, radiation 464
 
  • I.A. Yakovlev, S.V. Akulinichev, Y.K. Gavrilov
    RAS/INR, Moscow, Russia
  • R.D. Ilich
    VINCA, Belgrade, Serbia
  
  Funding: Institute for nuclear research of RAS (INR), Moscow 117312, Russia
In the case of small tumors the pencil beam width may be comparable with the target size. In these cases the application of classic method of passive beam scattering with a one-stage formation of dose distribution may be reasonable. However, the last method in its standard implementation fails to provide the dose conformity: either the maximal dose exceeds the tumor volume on its proximate site or the dose deviates too much within the tumor. In order to overcome this shortcoming of the passive scattering method, we suggest a new construction of a two-component ridge filter (the corresponding patent is pending). We have performed a series of calculations with the Monte-Carlo code SRNA in order to find the optimal construction from the point of view of dose delivery accuracy and of the device manufacturability. With that ridge filter the 95% isodose does not notably leave the tumor volume. The usual 'wings' of isodoses on proximate side are now absent and the volume of irradiated healthy tissue is significantly reduced. The experimental tests with proton beams are now in progress. 		 
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WEPSB046 A Cyclotron Complex for Acceleration of Carbon Ions cyclotron, injection, extraction, acceleration 467
 
  • V.L. Smirnov, S.B. Vorozhtsov
    JINR, Dubna, Moscow Region, Russia
  
  An accelerating complex for hadron therapy is proposed. Facility consists of two superconducting cyclotrons and is aimed to produce beams of 12C6+ ions with energy of 400 MeV/nucleon. Accelerator-injector is a compact 70 MeV/nucleon cyclotron. Main machine is separated sector cyclotron consisting of six magnets. Basic features of the main cyclotron are high magnetic field, compact size, and feasible design of a magnetic system. The advantages of the dual cyclotron design are typical of cyclotron-based solutions. The first design studies of the sector magnet of the main cyclotron show that the beam dynamics is acceptable with the obtained magnetic field. Due to its relatively compact size (outer diameter of 12 m) the complex can be an alternative to synchrotrons. Design study of the main cyclotron is described here.  
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WEPSB052 The Use of Graphene as Stripper Foils in the Siemens Eclipse Cyclotron cyclotron, experiment, ion-source, target 483
 
  • S. Korenev, R. Dishman, A. Martin Yebra
    Siemens Medical Solutions Molecular Imaging, Knoxville, TN, USA
  • R.L. Fink, I. Pavlovsky
    ANI, Austin, USA
  • N.D. Meshcheryakov, I.B. Smirnov
    Siemens Healthcare, Moscow, Russia
  
  This paper presents the results of an experimental study for the use of graphene foils as an extractor (stripper) foil in the 11-MeV Siemens Eclipse Cyclotron. The main advantage of graphene foils compared with carbon and graphite foils is its very high thermal conductivity. The graphene also has significant mechanical strength for atomically thin carbon layers. The life time of these foils is more than 18,000 mkA*H. The graphene foils showed a significant increase in the transmission factor (the ratio of the beam current on the stripper foil to the current on the target), which was approximately 90%. The technology in fabricating these graphene foils is shown. The pros and cons of using the graphene material as a stripper foil in cyclotrons are analyzed.  
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WEPSB059 Realization of Positron Annihilation Spectroscopy at LEPTA Facility positron, electron, detector, radiation 496
 
  • K. Siemek, V.I. Hilinov, P. Horodek
    JINR/DLNP, Dubna, Moscow region, Russia
  • E.V. Ahmanova, M.K. Eseev, A.G. Kobets, I.N. Meshkov, O. Orlov, A.A. Sidorin
    JINR, Dubna, Moscow Region, Russia
  • M.K. Eseev
    NAFU, Arkhangelsk, Russia
  • A.G. Kobets
    IERT, Kharkov, Ukraine
  
  Positrons are used in materials science to study open volume defects. Several positron annihilation spectroscopy (PAS) techniques exist. These methods are based on detection of the 511 keV gamma quantum. The first method is the analysis of the Doppler broadening of annihilation line and provide information about defect concentration. Both annihilation quanta can be observed. Coincidence observation of two quanta gives additional information about the environment around defect. The second method is based on lifetime concept, which allows to distinguish type of defects. Nowadays, positron beams are of great interest for materials science. Using a low energy, monoenergetic beam it is possible to control the positron penetration depth from the sample surface to a depth of several microns. Thus, the beam can be used to characterize thin films, analysis of surface modification, studying influence of ions on matter etc. This report aims to present a current status of realization and progress in PAS methods at LEPTA facility at JINR.  
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WEPSB061 Neutron Generators of the NG-10 Series for Metrology neutron, target, controls, vacuum 502
 
  • D.A. Solnyshkov, A.V. Kozlov, A.N. Kuzhlev, N.P. Mikulinas, A.V. Morozov, G.G. Voronin
    NIIEFA, St. Petersburg, Russia
  
  Neutron generators NG-10 and NG-10M with a neutron yield of 1*1010 n/s and 2*1011 n/s respectively have been designed in the JSC "NIIEFA". The generators are high-voltage accelerators with target devices intended for installation and effective cooling of Ti-T/Ti-D targets of different diameters. A duoplasmotron with a beam current up to 5 mA is used in the NG-10 generator, and the NG-10M employs a microwave ion source providing the beam current up to 10 mA. The power supplies, which are under high voltage, are controlled via fiber optic communication lines. Deuterium ions produced in the ion source are accelerated up to 150 keV in a sectionalized accelerating tube, separated in mass with an electromagnetic mass-separator and focused onto a target with a doublet of electromagnetic quadrupole lenses. The generators are equipped with several lines to transport the beam to targets, which can be placed in separate rooms. In addition to a high and stable in time yield of neutrons when operating continuously, the generators provide the pulsed mode with a smooth variation of the pulse width from 2 mks up to 100 mks and pulse repetition rate from 1 Hz up to 20 kHz.  
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WEPSB075 Beam Injector for Vacuum Insulated Tandem Accelerator acceleration, ion-source, vacuum, high-voltage 529
 
  • A.S. Kuznetsov, K.A. Blokhina, A.A. Gmyrya, A.V. Ivanov, D.A. Kasatov, A.M. Koshkarev, A.L. Sanin
    BINP SB RAS, Novosibirsk, Russia
  • K.A. Blokhina, A.A. Gmyrya
    NSTU, Novosibirsk, Russia
  • D.A. Kasatov, A.M. Koshkarev
    NSU, Novosibirsk, Russia
  
  Funding: Applied research is carrying out with the financial support of the Russian Federation represented by the Ministry of Education and Science of Russia (unique identifier RFMEFI60414X0066).
The Vacuum Insulated Tandem Accelerator is built at the Budker Institute of Nuclear Physics. The accelerator is designed for development of the concept of accelerator-based boron neutron capture therapy of malignant tumors in the clinic.* In the accelerator the negative hydrogen ions are accelerated by the high voltage electrode potential to the half of required energy, and after conversion of the ions into protons by means of a gas stripping target the protons are accelerated again by the same potential to the full beam energy. During the facility development, the proton beam was obtained with 5 mA current and 2 MeV energy**. To ensure the beam parameters and reliability of the facility operation required for clinical applications, the new injector was designed based on the ion source with a current up to 15 mA***, providing the possibility of preliminary beam acceleration up to 120-200 keV. The paper presents the status of the injector construction and testing.
*B.F.Bayanov, et al. Nuclear Instr. and Methods in Physics Research A 413/2-3 (1998) 397-426.
**A. Ivanov, et al. Journal of Instrumentation 11 (2016) P04018.
***Yu. Belchenko, et al. AIP Conference Proceedings 1097, 214 (2009); doi: 10.1063/1.3112515
 		 
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THPSC006 Simulation of Precision Magnetic Shielding System for Beam Injectors in Tokamaks plasma, operation, shielding, simulation 550
 
  • A.M. Bazarov, V.M. Amoskov, V.A. Belyakov, E.I. Gapionok, V.P. Kukhtin, E.A. Lamzin, S.E. Sytchevsky
    NIIEFA, St. Petersburg, Russia
  • V.A. Belyakov, S.E. Sytchevsky
    Saint Petersburg State University, Saint Petersburg, Russia
  • Y. Gribov
    ITER Organization, St. Paul lez Durance, France
  
  Beam injectors in tokamaks are utilized for plasma heating and diagnostics. Due to the relatively large distance between the injectors and plasma, the tokamak stray magnetic field inside injectors during the operation should be very low (down to the tenths of Gauss) to avoid the deflection of the ion beams. The Magnetic Field Reduction System (MFRS) should be used to reduce the stray magnetic field produced by the tokamak EM systems and plasma to an acceptable level inside the injectors. In total, the complex MFRS can consist of a passive magnetic shield and active coils to provide the strict design criteria during a plasma scenario. To provide precise computations, detailed numerical models of MFRS should have the dimensions up to several tens of millions of degrees of freedom. Such problem could be solved only with the use of high-efficiency vector algorithms and parallel computations. The paper is dedicated to simulation of MFRS for beam injectors in tokamaks.  
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THPSC018 Achievement of Necessary Vacuum Conditions in the NICA Accelerator Complex vacuum, booster, collider, cathode 575
 
  • A.V. Smirnov, A.M. Bazanov, A.V. Butenko, A.R. Galimov, H.G. Khodzhibagiyan, A. Nesterov, A.N. Svidetelev, A. Tikhomirov
    JINR, Dubna, Moscow Region, Russia
  
  NICA is a new accelerator collider complex under construction at the Joint Institute for Nuclear Research in Dubna. The facility is aimed at providing collider experiments with heavy ions up to Gold in a center of mass energy range from 4 to 11 GeV/u and an average luminosity up to 1027 cm-2 s-1. The collisions of polarized deuterons are also foreseen. The facility includes two injector chains, a new superconducting booster synchrotron, the existing superconducting synchrotron Nuclotron, and a new superconducting collider consisting of two rings, each of about 500 m in circumference. Vacuum volumes of the accelerator booster and Nuclotron and the superconducting collider are divided into volumes of superconducting elements thermal enclosure and beam chambers. The beam chambers consist regular cold periods, which are at a temperature of 4.2K to 80K, and warm irregular gaps at room temperature. Operating pressure in the thermal enclosure vacuum volumes have to maintained in the range of 10-7 to 10-4 mbar, in the beam chamber cold and warm areas - not more than 2·10-11 mbar. The requirements for materials, surface preparation conditions and the level of leakage in the vacuum volume are set out. The description of way to achievement and maintenance of the working vacuum in the NICA project are presented.  
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THPSC031 Power Supplies for IHEP Negative Hydrogen Ions Source power-supply, extraction, ion-source, H-minus 612
 
  • B.A. Frolov
    IHEP, Moscow Region, Russia
  • V.S. Klenov, V. Zubets
    RAS/INR, Moscow, Russia
  
  The source of negative hydrogen ions is constructed at IHEP for the implementation of multiturn charge-exchange injection to increase the intensity of IHEP buster. Surface-plasma ion souce (SPS) with Penning discharge is selected as a source of H-minus ions. A set of power supplies for SPS, which includes the extraction voltage power supply, the discharge power supplies, the hydrogen gas pulse valve power supply, cesium oven and cesium storage device temperature controllers, was designed, constructed and tested on the equivalent loads. This set of power supplies will allows for commissioning and testing the ion source with the beam extraction energy up to 25 keV and repetition rate 25 Hz.  
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THPSC033 Obtainment of 5 mA 2 MeV Proton Beam in the Vacuum Insulation Tandem Accelerator proton, vacuum, electron, tandem-accelerator 618
 
  • I.M. Shchudlo, D.A. Kasatov, A.M. Koshkarev, A.N. Makarov, Y.M. Ostreinov, I.N. Sorokin, S.Yu. Taskaev
    BINP SB RAS, Novosibirsk, Russia
  
  Funding: The study was supported by the grants from the Russian Science Foundation (Project No.14-32-00006), Budker Nuclear Institute and Novosibirsk State University
In BINP the neutron source for BNCT based on proton accelerator was designed and built. It is necessary for the therapy to ensure a stable proton beam current of not less than 3 mA with energy 2 MeV. During the injection of negative hydrogen ion beam into the accelerator the unwanted charged particles are produced, affecting the stability of beam parameters. The article describes meth-ods of suppression of undesirable charged particles and the results of experiments. 		 
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THPSC053 The Pepper-Pot Emittance Measuring Device at the 400 keV H-minus LEBT Channel emittance, H-minus, linac, acceleration 653
 
  • V.S. Klenov, S. Bragin, O.T. Frolov, S.E. Golubovski, O.V. Grekhov, O. Volodkevich, V. Zubets
    RAS/INR, Moscow, Russia
  
  The emittance measuring device has been developed for operational control of INR RAS linac 400 keV H-minus injector beam parameters. It includes the "pepper-pot", the quartz screen, the CCD camera, PC, the software for camera data processing and beam phase portrait formation. The device has been mounted at the first straight section extension of H-minus LEBT after 45 degree bending magnet. When the bending magnet is switched off the device is possible to measure and to represent single shot beam phase portrait. The results of the H-minus beam emittance measurements and the device performance have been discussed.  
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THPSC059 Thermal Loads of Wire-Based Beam Instrumentation at Ion Linacs electron, proton, instrumentation, niobium 670
 
  • M.M. Churaev, S.A. Gavrilov
    RAS/INR, Moscow, Russia
  • M.M. Churaev
    Skoltech, Moscow, Russia
  • M.M. Churaev
    MIPT, Dolgoprudniy, Moscow Region, Russia
  
  Wire-based beam instrumentation remains a reference for calibration of many other instruments, providing direct and accurate measurements with high resolution. However beam power increasing of existing and forthcoming ion linacs results in strict constraints on operation modes acceptable for control and diagnostics. Relevant simulations of wire thermal loads are necessary not only for a mode choice, but also for a preliminary design of such instrumentation. Simulations for different wire materials and various beam parameters are made. Features of the model are discussed. Numerical estimations and conclusions are presented in comparison with some experimental results.  
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THPSC061 Beam Diagnostics Overview for Collector Ring at FAIR diagnostics, antiproton, injection, beam-diagnostic 676
 
  • Yu. A. Rogovsky, E.A. Bekhtenev, M.I. Bryzgunov, O.I. Meshkov
    BINP SB RAS, Novosibirsk, Russia
  • O. Chorniy
    GSI, Darmstadt, Germany
  
  The Collector Ring (CR) is a dedicated storage ring in the FAIR project, where the main emphasis is laid on the effective stochastic precooling of intense secondary beams of stable ions, rare isotopes or antiprotons. A complex operation scheme with several types of operational cycles with beams in CR starting from injection, RF gymnastics, stochastic cooling then, and finishing to extraction is foreseen. Beam parameters changes significantly during the cycles. This demands an exceptional high dynamic range for the beam instrumentation. Non-destructive methods are mandatory for high currents as well as for the low current secondary beams due to the low repetition rate. Precise measurements of all beam parameters and automatic steering with short response time are required due to the necessary exploitation of the full ring acceptances. An overview of the challenges and solutions for various diagnostic installations will be given.  
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THPSC064 Monitoring of Low Intensity Ion Beams at FLNR Accelerator Complex detector, radiation, cyclotron, diagnostics 683
 
  • S. Mitrofanov, Yu.G. Teterev
    JINR, Dubna, Moscow Region, Russia
  • A.I. Krylov
    JINR/FLNR, Moscow region, Russia
  
  FLNR JINR host experimental researches in wide area of applied science, including medical, biological and radiation hardness investigations, where the beam diagnostics plays the key role. We provide beam monitoring at all stages of the experiment: inside the cyclotron, beam transport and ion beam profile visualization close to the physical target. The detailed overview of beam control and diagnostic solutions used in FLNR JINR for the low intensity and highly charged ion beams parameters evaluation will be presented.  
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THPSC069 Measurement of the Ion Beam Profile with the D-Pace Wire Scanner vacuum, neutron, experiment, focusing 695
 
  • E.O. Sokolova
    Budker INP & NSU, Novosibirsk, Russia
  • D.A. Kasatov, Ya.A. Kolesnikov, A.M. Koshkarev, A.S. Kuznetsov, A.N. Makarov, I.M. Shchudlo, I.N. Sorokin, S.Yu. Taskaev
    BINP SB RAS, Novosibirsk, Russia
  
  Funding: The study was supported by grants from the Russian Science Foundation (Project no. 14-32-00006) and the Budker Institute of Nuclear Physics and the Novosibirsk State University.
In The Budker Institute of Nuclear Physics the accelerator-based source of epithermal neutrons was invented and now operates to be used in the boron neutron capture therapy. For several reasons the real beam flow in the facility differs from the calculated one. To take into account this distinction it is necessary to provide continuous monitoring of the beam parameters. In order to optimize the facility operation the beam should be followed not only during the formation but also while an acceleration takes place and the proton beam is thrown on the lithium target as the proton current and energy influence on the neutron output. In this way it seems to be a significant issue to measure the current, profile and also the position of the ion beam in a low-energy part of the accelerator. This work represents the results of experiments with the D-Pace WS-30 Wire Scanner Probe, which was installed in the low-energy part of the accelerator. The experiments were carried out under various conditions to vary the position and focusing control via the system of magnetic correcting elements. To correctly interpret experimental data it was necessary to take into account physical phenomena which occur during an experiment. In this way the effects which take place when the probe interacts with the beam were thoroughly considered. The obtained results allowed to restore the ion beam profile, define its size and position. 		 
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THPSC077 Control System for the 1 MW Neutral Beam Injector controls, neutral-beams, software, monitoring 712
 
  • V.V. Oreshonok, V.V. Kolmogorov
    BINP SB RAS, Novosibirsk, Russia
  • A.N. Karpushov
    SPC-EPFL, Lausanne, Switzerland
  • V.V. Oreshonok
    NSU, Novosibirsk, Russia
  
  Funding: This work supported in part by the Swiss National Science Foundation.
This paper presents general description of hardware and software of the neutral beam injector control system. The system is developed for control of the neutral beam injector which operates with 15-25 keV deuterium and hydrogen beams of 2 s maximum duration. It performs injection parameters calculation according to the desired beam power vs time curve, synchronizes and protects the injector subsystems and acquires its data during the shot. It also controls the injector operation between the shots. The system is based on an industrial computer with National Instruments PCIe boards: two PCIe-7842R reconfigurable input-output modules and a PCIe-6323 data acquisition module. An in-house developed interfacing module (cross-box) as well as serial to fiber optic converters are used for galvanic isolation and electrical compatibility with the injector subsystems. User interface software and PCIe boards programmable logic firmware are implemented in LabVIEW. Injection calculations and results acquired are represented with MATLAB. 		 
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THPSC086 Development and Implementation of the Automation System of the Ion Source for BNCT controls, PLC, experiment, ion-source 733
 
  • A.M. Koshkarev, A.S. Kuznetsov, A.L. Sanin, V.Ya. Savkin, S.Yu. Taskaev, P.V. Zubarev
    BINP SB RAS, Novosibirsk, Russia
  
  Funding: Ministry of Science of the Russian Federation, unique identifier of applied research RFMEFI60414X0066.
The new source of epithermal neutrons*, designed for boron neutron capture therapy (BNCT)** of cancer in oncology clinic, was proposed and developed in Budker Institute of Nuclear Physics. This method of treatment is effective against several currently incurable radioresistant tumors, such as brain glioblastoma and melanoma metastases. The neutron source includes a new type of accelerator: accelerator-tandem with vacuum insulation, lithium neutron generating target and neutron beam shaping assembly. Current accelerator produces a stationary 5 mA proton beam with 2 MeV energy, but this is not sufficient for therapy on humans. For conducting the experiment on humans it is necessary to create a new power rack for the ion source. The report summarizes results of the development and implementation of new power rack, with remote control and data collection systems, to reach 15 mA beam current. This system will increase the proton beam current and, as a result, the neutron yield, that is needed to heal people.
* S. Taskaev. Accelerator based epithermal neutron source. Physics of Particles and Nuclei, 2015, Vol. 46, No. 6, pp. 956'990.
** Neutron Capture Therapy. Principles and Applications. Eds: W. Sauerwein, A. Wittig, R. Moss, Y. Nakagawa. Springer, 2012. 		 
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