RuPAC2016 - List of Keywords (booster)

Paper	Title	Other Keywords	Page
MOZMH01	CEPC-SppC Accelerator Status	collider, positron, luminosity, proton	1
	J. Gao IHEP, Beijing, People's Republic of China
	In this talk we will give a bird view of the status Circular Electron Positron Collider (CEPC). The scientific goal and the collider design goal of CECP are described. The luminosity potentail of Super Proton-Proton Collider (SPPC) in the same tunnel of CEPC are also provided. The optimization of parameter designs for CEPC with different energies, machine lengthes, single ring and crab-waist collision partial double ring options, etc. have been given systimatically. The machine lattice design philosophy and conrete lattice design are given. The corresponding SC RF system designs corresponding to different machine options are presented. Key issues for technology R&D, possible time schedule and international collaboration are addressed.
	Slides MOZMH01 [10.473 MB]
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WECAMH01	Some Problems of the Beam Extraction from Circular Accelerators	extraction, controls, injection, resonance	61
	S.N. Andrianov St. Petersburg State University, St. Petersburg, Russia N.S. Edamenko Saint Petersburg State University, Saint Petersburg, Russia
	In this article some problems of optimizing the output beam of particles from the circular accelerator are discussed. In particular, we consider some problems of matching the booster, Nuclotron and collider in the NICA project. The main attention is paid to the matching of the extraction beam systems. The proposed approach allows providing qualitative and quantitative analysis of the impact of various factors of the corresponding control systems.
	Slides WECAMH01 [1.912 MB]
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THCDMH03	The Progress on Manufacturing and Testing of the SC Magnets for the NICA Booster Synchrotron	dipole, superconducting-magnet, collider, synchrotron	144
	H.G. Khodzhibagiyan, N.N. Agapov, P.G. Akishin, V.V. Borisov, A.V. Bychkov, A.M. Donyagin, A.R. Galimov, O. Golubitsky, V. Karpinsky, B.Yu. Kondratiev, S.A. Korovkin, S.A. Kostromin, A.V. Kudashkin, G.L. Kuznetsov, D.N. Nikiforov, A.V. Shemchuk, S.A. Smirnov, A.Y. Starikov, G.V. Trubnikov 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 the center of mass energy from 4 to 11 GeV/u and an average luminosity up to 1*10²⁷ cm^-2 s⁻¹ for Au⁷⁹⁺. The collisions of polarized deuterons are also foreseen. The facility includes two injector chains, a new superconducting booster synchrotron, the existing 6 AGeV superconducting synchrotron Nuclotron, and a new superconducting collider consisting of two rings, each 503 m in circumference. The booster synchrotron is based on an iron-dominated "window frame"- type magnet with a hollow superconductor winding analogous to the Nuclotron magnet. The design of superconducting magnets for the NICA booster synchrotron is described. The progress of work on the manufacturing and testing of the magnets is discussed. The calculated and measured values of the characteristics of the magnets are presented. The status of the facility for serial test of superconducting magnets for the NICA and FAIR projects is described.
	Slides THCDMH03 [8.068 MB]
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FRCAMH01	Status of the Nuclotron	operation, controls, experiment, TANGO	150
	A.O. Sidorin, N.N. Agapov, A.V. Alfeev, V. Andreev, V. Batin, O.I. Brovko, V.V. Bugaev, A.V. Butenko, D.E. Donets, A.V. Eliseev, V.V. Fimushkin, E.V. Gorbachev, A. Govorov, A.Yu. Grebentsov, E.V. Ivanov, V. Karpinsky, H.G. Khodzhibagiyan, A. Kirichenko, V. Kobets, A.D. Kovalenko, O.S. Kozlov, K.A. Levterov, V.A. Mikhailov, V.A. Monchinsky, A. Nesterov, Yu.M. Nozhenko, A.L. Osipenkov, S. Romanov, P.A. Rukojatkin, A.A. Shurygin, I. Slepnev, V. Slepnev, A.V. Smirnov, E. Syresin, G.V. Trubnikov, A. Tuzikov, B. Vasilishin, V. Volkov JINR, Dubna, Moscow Region, Russia A. Belov RAS/INR, Moscow, Russia I.V. Gorelyshev, A.V. Philippov JINR/VBLHEP, Dubna, Moscow region, Russia A.O. Sidorin St. Petersburg University, St. Petersburg, Russia
	Since last RuPAC two runs of the Nuclotron operation were performed: in January - March of 2015 and June 2016. Presently we are providing the run, which has been started at the end of October and will be continued up to the end of December. The facility development is aimed to the performance increase for current physical program realization and preparation to the NICA Booster construction and Baryonic Matter at Nuclotron experiment.
	Slides FRCAMH01 [20.777 MB]
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FRCAMH05	Booster Synchrotron at NICA Accelerator Complex	kicker, ion, 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.
	Slides FRCAMH05 [16.830 MB]
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TUPSA004	Proposal of the Accelerating Structure for the First Cavity of the Main Part of INR Linac	cavity, linac, coupling, hadron	216
	I.V. Rybakov, A. Feschenko, Y.Z. Kalinin, L.V. Kravchuk, V.N. Leontiev, A.N. Naboka, V.V. Paramonov, V.L. Serov RAS/INR, Moscow, Russia
	For the beam intensity and overall stability improvement of INR linac replacement of the first four section cavity of the main part is required. The present cavity is realized as the Disks and Washers (DAW) structure. The new cavity should not lose to the present one in electro dynamical parameters with minimal modifications in the rest linac systems. As the possible structures for the first cavity replacement both proven in exploitation structures and promising developments were considered. The analysis of electro dynamical parameters, coupled RF heating, mechanical processes and manufacturing analysis were performed for the considered structures. For further development the Cut Disk Structure (CDS) option is proposed as the structure with satisfying RF parameters and having the smallest transverse dimensions in comparison with analogues. For the production simplification with minimal losses in electro dynamical parameters an unification of the main geometrical parameters for the four sections cells was performed. The possibility of multipaction in the cavity is considered and an option for its damping is proposed. The manufacturing tolerances for the structure are estimated.
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WEPSB036	Gold Ions Beam Losses at the Nuclotron Booster	ion, 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.
	Poster WEPSB036 [1.919 MB]
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WEPSB037	Beam Transfer From Heavy-Ion Linear Accelerator HILAC Into Booster of NICA Accelerator Complex	injection, kicker, ion, 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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WEPSB040	Commissioning of the 60 keV Electron Cooler for the NICA Booster	electron, vacuum, cathode, ion	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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THPSC005	Magnetic Measurement System For the NICA Collider Dual Dipoles	collider, dipole, data-acquisition, power-supply	547
	M.M. Shandov, V.V. Borisov, A.V. Bychkov, A.M. Donyagin, O. Golubitsky, H.G. Khodzhibagiyan, S.A. Kostromin, M.M. Omelyanenko JINR, Dubna, Russia A.V. Shemchuk JINR/VBLHEP, Dubna, Moscow region, Russia
	NICA collider magnetic system consists of 80 dual dipole superconducting magnets. Measurement of magnetic field parameters is assumed for each collider magnets. This paper describes magnetic measurements methods and developing of magnetic measurements system.
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THPSC010	Magnetic Measurement System For The NICA Quadrupole Magnets	quadrupole, collider, superconducting-magnet, cryogenics	559
	A.V. Shemchuk JINR/VBLHEP, Dubna, Moscow region, Russia V.V. Borisov, A.V. Bychkov, A.M. Donyagin, O. Golubitsky, H.G. Khodzhibagiyan, S.A. Kostromin, M.M. Omelyanenko, M.M. Shandov JINR, Dubna, Moscow Region, Russia
	NICA booster magnetic system consists of 40 dipole and 48 quadrupole superconducting magnets. Measurement of magnetic field parameters is assumed for each booster magnets. The booster quadrupole is 0.45 m-long, 47.5 mm pole radius magnet with design similar to the Nuclotron type quadrupole magnet. Focusing and defocusing quadrupole magnets are jointed in doublets. They will produce fields up to 21.5 T/m. Two magnetic measurements system with tangential and radial coils arrays were developed and produced. This paper describes the magnetic measurements methods as well as the first results of the magnetic measurements.
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THPSC013	The Nonsymmetrical Variant of the Nonferromagnetic Extraction Kicker Magnet of the NICA Booster	kicker, extraction, acceleration, injection	566
	V. Aleksandrov, A.A. Fateev, A. Tuzikov JINR, Dubna, Moscow Region, Russia
	Development and creation of the NICA acceleration complex are continued at JINR (Dubna). One of the main facilities of the complex is the Booster in which preliminary acceleration and cooling of an ion beam is performed. Further acceleration is fulfilled in the circular accelerator NUCLOTRON. The beam transfer from the Booster into the NUCLOTRON is provided by means of the fast extraction system and one of its central elements is the kicker magnet. For the beam deflecting into the extraction septum-magnet it is supposed to use the nonferrous kicker magnet consisting of two couples of conductors. Recent changes made in configuration of the Booster extraction section demand decrease of the kicker magnet length that leads to change of the beam extraction scheme. This report is devoted to the choice of the alternative design of the magnet (the nonsymmetrical variant).
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THPSC018	Achievement of Necessary Vacuum Conditions in the NICA Accelerator Complex	vacuum, collider, ion, 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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THPSC024	The Pulsed High Voltage Power Supply for the NICA Booster Injection System	power-supply, controls, injection, TANGO	592
	A.A. Fateev, E.V. Gorbachev, H.P. Nazlev JINR, Dubna, Moscow Region, Russia V. A. Bulanov JINR/VBLHEP, Dubna, Moscow region, Russia
	Three pairs of electrostatic deflecting plates will be used in the injection system of booster ring. The electric circuit and design of the power supply system for one plate are presented in the report. The experimental results of testing are also presented.
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THPSC030	High-Precision Ramped High-Voltage Source With Up to 50 kV Output Voltage	high-voltage, feedback, interface, electron	609
	D.V. Senkov, A.M. Batrakov, I.A. Gusev, A.Yu. Protopopov, A.A. Zharikov BINP SB RAS, Novosibirsk, Russia
	This report describes the precision high-voltage ramped high-voltage power system. The output voltage up to 50 kV with 10 ppm precision. The power system consists of the 3 kW high-voltage source based on multiplier, presision high-voltage divider with digital interface and high-voltage discharge switch to provide low ramp-down time for output voltage. The power system is planed to use in the NIKA booster electron cooler project. The description and test results are presented.
	Poster THPSC030 [1.985 MB]
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THPSC043	Series Magnetic Measurements Of NICA Booster Dipoles	dipole, coupling, electron, quadrupole	629
	V.V. Borisov, A.V. Bychkov, A.M. Donyagin, O. Golubitsky, H.G. Khodzhibagiyan, S.A. Kostromin, M.M. Omelyanenko, M.M. Shandov JINR, Dubna, Moscow Region, Russia A.V. Shemchuk JINR/VBLHEP, Dubna, Moscow region, Russia
	NICA booster magnetic system consists of 40 dipole and 48 quadrupole superconducting (SC) magnets. Measurement of magnetic field parameters is assumed for each booster magnets. At the moment six series dipole magnets are assembled and have passed all tests. Booster dipole magnets are 2.14 m-long, 128 /65 mm (h/v) aperture magnets with design similar to Nuclotron dipole magnet but with curved (14.1 m radius) yoke. They will produce fields up to 1.8 T. The magnetic field parameters will be measured at "warm" (300 K) and "cold" (4.5 K) conditions. The obtained results of magnetic measurements of first five magnets are summarized here.
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THPSC056	Proposal to Symmetric Quench Detection at Superconducting Elements by Bridge Scheme Usage	detector, superconductivity, collider, acceleration	662
	E.V. Ivanov JINR, Dubna, Moscow Region, Russia A.O. Sidorin, A.L. Svetov JINR/VBLHEP, Dubna, Moscow region, Russia
	In the frame of the NICA project two new superconducting accelerators will be constructed - the Booster and the NICA collider. Specialized facility for manufacturing and testing of the SC magnets for the NICA and FAIR projects is under development at JINR. Proposal to quench detection system for these and similar facilities is described in this paper.
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Paper

Title

Other Keywords

Page

MOZMH01

CEPC-SppC Accelerator Status

collider, positron, luminosity, proton

1

J. Gao
IHEP, Beijing, People's Republic of China

In this talk we will give a bird view of the status Circular Electron Positron Collider (CEPC). The scientific goal and the collider design goal of CECP are described. The luminosity potentail of Super Proton-Proton Collider (SPPC) in the same tunnel of CEPC are also provided. The optimization of parameter designs for CEPC with different energies, machine lengthes, single ring and crab-waist collision partial double ring options, etc. have been given systimatically. The machine lattice design philosophy and conrete lattice design are given. The corresponding SC RF system designs corresponding to different machine options are presented. Key issues for technology R&D, possible time schedule and international collaboration are addressed.

Slides MOZMH01 [10.473 MB]

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WECAMH01

Some Problems of the Beam Extraction from Circular Accelerators

extraction, controls, injection, resonance

61

S.N. Andrianov
St. Petersburg State University, St. Petersburg, Russia
N.S. Edamenko
Saint Petersburg State University, Saint Petersburg, Russia

In this article some problems of optimizing the output beam of particles from the circular accelerator are discussed. In particular, we consider some problems of matching the booster, Nuclotron and collider in the NICA project. The main attention is paid to the matching of the extraction beam systems. The proposed approach allows providing qualitative and quantitative analysis of the impact of various factors of the corresponding control systems.

Slides WECAMH01 [1.912 MB]

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THCDMH03

The Progress on Manufacturing and Testing of the SC Magnets for the NICA Booster Synchrotron

dipole, superconducting-magnet, collider, synchrotron

144

H.G. Khodzhibagiyan, N.N. Agapov, P.G. Akishin, V.V. Borisov, A.V. Bychkov, A.M. Donyagin, A.R. Galimov, O. Golubitsky, V. Karpinsky, B.Yu. Kondratiev, S.A. Korovkin, S.A. Kostromin, A.V. Kudashkin, G.L. Kuznetsov, D.N. Nikiforov, A.V. Shemchuk, S.A. Smirnov, A.Y. Starikov, G.V. Trubnikov
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 the center of mass energy from 4 to 11 GeV/u and an average luminosity up to 1*10²⁷ cm^-2 s⁻¹ for Au⁷⁹⁺. The collisions of polarized deuterons are also foreseen. The facility includes two injector chains, a new superconducting booster synchrotron, the existing 6 AGeV superconducting synchrotron Nuclotron, and a new superconducting collider consisting of two rings, each 503 m in circumference. The booster synchrotron is based on an iron-dominated "window frame"- type magnet with a hollow superconductor winding analogous to the Nuclotron magnet. The design of superconducting magnets for the NICA booster synchrotron is described. The progress of work on the manufacturing and testing of the magnets is discussed. The calculated and measured values of the characteristics of the magnets are presented. The status of the facility for serial test of superconducting magnets for the NICA and FAIR projects is described.

Slides THCDMH03 [8.068 MB]

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FRCAMH01

Status of the Nuclotron

operation, controls, experiment, TANGO

150

A.O. Sidorin, N.N. Agapov, A.V. Alfeev, V. Andreev, V. Batin, O.I. Brovko, V.V. Bugaev, A.V. Butenko, D.E. Donets, A.V. Eliseev, V.V. Fimushkin, E.V. Gorbachev, A. Govorov, A.Yu. Grebentsov, E.V. Ivanov, V. Karpinsky, H.G. Khodzhibagiyan, A. Kirichenko, V. Kobets, A.D. Kovalenko, O.S. Kozlov, K.A. Levterov, V.A. Mikhailov, V.A. Monchinsky, A. Nesterov, Yu.M. Nozhenko, A.L. Osipenkov, S. Romanov, P.A. Rukojatkin, A.A. Shurygin, I. Slepnev, V. Slepnev, A.V. Smirnov, E. Syresin, G.V. Trubnikov, A. Tuzikov, B. Vasilishin, V. Volkov
JINR, Dubna, Moscow Region, Russia
A. Belov
RAS/INR, Moscow, Russia
I.V. Gorelyshev, A.V. Philippov
JINR/VBLHEP, Dubna, Moscow region, Russia
A.O. Sidorin
St. Petersburg University, St. Petersburg, Russia

Since last RuPAC two runs of the Nuclotron operation were performed: in January - March of 2015 and June 2016. Presently we are providing the run, which has been started at the end of October and will be continued up to the end of December. The facility development is aimed to the performance increase for current physical program realization and preparation to the NICA Booster construction and Baryonic Matter at Nuclotron experiment.

Slides FRCAMH01 [20.777 MB]

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FRCAMH05

Booster Synchrotron at NICA Accelerator Complex

kicker, ion, 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.

Slides FRCAMH05 [16.830 MB]

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TUPSA004

Proposal of the Accelerating Structure for the First Cavity of the Main Part of INR Linac

cavity, linac, coupling, hadron

216

I.V. Rybakov, A. Feschenko, Y.Z. Kalinin, L.V. Kravchuk, V.N. Leontiev, A.N. Naboka, V.V. Paramonov, V.L. Serov
RAS/INR, Moscow, Russia

For the beam intensity and overall stability improvement of INR linac replacement of the first four section cavity of the main part is required. The present cavity is realized as the Disks and Washers (DAW) structure. The new cavity should not lose to the present one in electro dynamical parameters with minimal modifications in the rest linac systems. As the possible structures for the first cavity replacement both proven in exploitation structures and promising developments were considered. The analysis of electro dynamical parameters, coupled RF heating, mechanical processes and manufacturing analysis were performed for the considered structures. For further development the Cut Disk Structure (CDS) option is proposed as the structure with satisfying RF parameters and having the smallest transverse dimensions in comparison with analogues. For the production simplification with minimal losses in electro dynamical parameters an unification of the main geometrical parameters for the four sections cells was performed. The possibility of multipaction in the cavity is considered and an option for its damping is proposed. The manufacturing tolerances for the structure are estimated.

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WEPSB036

Gold Ions Beam Losses at the Nuclotron Booster

ion, 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.

Poster WEPSB036 [1.919 MB]

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WEPSB037

Beam Transfer From Heavy-Ion Linear Accelerator HILAC Into Booster of NICA Accelerator Complex

injection, kicker, ion, 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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WEPSB040

Commissioning of the 60 keV Electron Cooler for the NICA Booster

electron, vacuum, cathode, ion

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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THPSC005

Magnetic Measurement System For the NICA Collider Dual Dipoles

collider, dipole, data-acquisition, power-supply

547

M.M. Shandov, V.V. Borisov, A.V. Bychkov, A.M. Donyagin, O. Golubitsky, H.G. Khodzhibagiyan, S.A. Kostromin, M.M. Omelyanenko
JINR, Dubna, Russia
A.V. Shemchuk
JINR/VBLHEP, Dubna, Moscow region, Russia

NICA collider magnetic system consists of 80 dual dipole superconducting magnets. Measurement of magnetic field parameters is assumed for each collider magnets. This paper describes magnetic measurements methods and developing of magnetic measurements system.

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THPSC010

Magnetic Measurement System For The NICA Quadrupole Magnets

quadrupole, collider, superconducting-magnet, cryogenics

559

A.V. Shemchuk
JINR/VBLHEP, Dubna, Moscow region, Russia
V.V. Borisov, A.V. Bychkov, A.M. Donyagin, O. Golubitsky, H.G. Khodzhibagiyan, S.A. Kostromin, M.M. Omelyanenko, M.M. Shandov
JINR, Dubna, Moscow Region, Russia

NICA booster magnetic system consists of 40 dipole and 48 quadrupole superconducting magnets. Measurement of magnetic field parameters is assumed for each booster magnets. The booster quadrupole is 0.45 m-long, 47.5 mm pole radius magnet with design similar to the Nuclotron type quadrupole magnet. Focusing and defocusing quadrupole magnets are jointed in doublets. They will produce fields up to 21.5 T/m. Two magnetic measurements system with tangential and radial coils arrays were developed and produced. This paper describes the magnetic measurements methods as well as the first results of the magnetic measurements.

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THPSC013

The Nonsymmetrical Variant of the Nonferromagnetic Extraction Kicker Magnet of the NICA Booster

kicker, extraction, acceleration, injection

566

V. Aleksandrov, A.A. Fateev, A. Tuzikov
JINR, Dubna, Moscow Region, Russia

Development and creation of the NICA acceleration complex are continued at JINR (Dubna). One of the main facilities of the complex is the Booster in which preliminary acceleration and cooling of an ion beam is performed. Further acceleration is fulfilled in the circular accelerator NUCLOTRON. The beam transfer from the Booster into the NUCLOTRON is provided by means of the fast extraction system and one of its central elements is the kicker magnet. For the beam deflecting into the extraction septum-magnet it is supposed to use the nonferrous kicker magnet consisting of two couples of conductors. Recent changes made in configuration of the Booster extraction section demand decrease of the kicker magnet length that leads to change of the beam extraction scheme. This report is devoted to the choice of the alternative design of the magnet (the nonsymmetrical variant).

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THPSC018

Achievement of Necessary Vacuum Conditions in the NICA Accelerator Complex

vacuum, collider, ion, 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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THPSC024

The Pulsed High Voltage Power Supply for the NICA Booster Injection System

power-supply, controls, injection, TANGO

592

A.A. Fateev, E.V. Gorbachev, H.P. Nazlev
JINR, Dubna, Moscow Region, Russia
V. A. Bulanov
JINR/VBLHEP, Dubna, Moscow region, Russia

Three pairs of electrostatic deflecting plates will be used in the injection system of booster ring. The electric circuit and design of the power supply system for one plate are presented in the report. The experimental results of testing are also presented.

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THPSC030

High-Precision Ramped High-Voltage Source With Up to 50 kV Output Voltage

high-voltage, feedback, interface, electron

609

D.V. Senkov, A.M. Batrakov, I.A. Gusev, A.Yu. Protopopov, A.A. Zharikov
BINP SB RAS, Novosibirsk, Russia

This report describes the precision high-voltage ramped high-voltage power system. The output voltage up to 50 kV with 10 ppm precision. The power system consists of the 3 kW high-voltage source based on multiplier, presision high-voltage divider with digital interface and high-voltage discharge switch to provide low ramp-down time for output voltage. The power system is planed to use in the NIKA booster electron cooler project. The description and test results are presented.

Poster THPSC030 [1.985 MB]

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THPSC043

Series Magnetic Measurements Of NICA Booster Dipoles

dipole, coupling, electron, quadrupole

629

V.V. Borisov, A.V. Bychkov, A.M. Donyagin, O. Golubitsky, H.G. Khodzhibagiyan, S.A. Kostromin, M.M. Omelyanenko, M.M. Shandov
JINR, Dubna, Moscow Region, Russia
A.V. Shemchuk
JINR/VBLHEP, Dubna, Moscow region, Russia

NICA booster magnetic system consists of 40 dipole and 48 quadrupole superconducting (SC) magnets. Measurement of magnetic field parameters is assumed for each booster magnets. At the moment six series dipole magnets are assembled and have passed all tests. Booster dipole magnets are 2.14 m-long, 128 /65 mm (h/v) aperture magnets with design similar to Nuclotron dipole magnet but with curved (14.1 m radius) yoke. They will produce fields up to 1.8 T. The magnetic field parameters will be measured at "warm" (300 K) and "cold" (4.5 K) conditions. The obtained results of magnetic measurements of first five magnets are summarized here.

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THPSC056

Proposal to Symmetric Quench Detection at Superconducting Elements by Bridge Scheme Usage

detector, superconductivity, collider, acceleration

662

E.V. Ivanov
JINR, Dubna, Moscow Region, Russia
A.O. Sidorin, A.L. Svetov
JINR/VBLHEP, Dubna, Moscow region, Russia

In the frame of the NICA project two new superconducting accelerators will be constructed - the Booster and the NICA collider. Specialized facility for manufacturing and testing of the SC magnets for the NICA and FAIR projects is under development at JINR. Proposal to quench detection system for these and similar facilities is described in this paper.

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