RuPAC2016 - Classification: Superconducting accelerators and cryogenics

Paper	Title	Page
WECBMH01	First Cold Tests of the Superconducting cw Demonstrator at GSI	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.
	Slides WECBMH01 [4.677 MB]
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THZMH01	SC and HTS-related Activity at IHEP	128
	S. Kozub, A.I. Ageev, I. Bogdanov, E. Kashtanov, V.A. Pokrovsky, P.A. Shcherbakov, L.S. Shirshov, V.I. Shuvalov, I. Slabodchikov, V. Sytnik, L. Tkachenko, O.V. Trusov, S. Zinchenko IHEP, Moscow Region, Russia
	The SC program at IHEP of NRC Â“Kurchatov InstituteÂ” has been developed intensively in the 1980ies in the framework of the UNK project. More than a hundred of models of the SC magnets of various designs, and then the pilot batch consisting of 25 full-scale dipoles and 4 quadrupoles have been designed, manufactured and tested at IHEP. Two SC magnetic systems of Electron Lens for the Tevatron collider were developed, manufactured, shipped and successfully brought into operation. Development of fast-cycling SC magnets for the FAIR project is discussed. Racetrack coils from HTS-2G tape for electrical machines that were developed, manufactured and tested are reported. Test and trial results with HTS dipole magnets employing Bi2223 as well as second-generation HTS are also reviewed.
	Slides THZMH01 [6.546 MB]
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THZMH02	Status of Superconducting ISAC-II and eLinac accelerators, and SRF Activities at TRIUMF	133
	V. Zvyagintsev, Z.T. Ang, K. Fong, T. Junginger, J.J. Keir, A.N. Koveshnikov, C. Laforge, D. Lang, R.E. Laxdal, Y. Ma, N. Muller, R.R. Nagimov, D.W. Storey, E. Thoeng, B.S. Waraich, Z.Y. Yao, Q. Zheng TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
	The development for superconducting accelerators has been started at TRIUMF in 2000. The main milestones and material implementations are: 2006 - commissioning of Phase-I of the heavy ion superconducting accelerator ISAC-II, 2010 - Phase-II, 2014 - commissioning of Phase-I of the superconducting electron linear accelerator eLinac. We are using the accumulated experience and resources for farther SRF development at TRIUMF and external projects VECC, RISP, FRIB and SLAC. TRIUMF is also running fundamental studies for SRF and educational program for universities. Status of Superconducting ISAC-II and eLinac accelerators and SRF development aspects, results and plans are discussed.
	Slides THZMH02 [20.602 MB]
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THCDMH01	Conceptual Design of Superconducting Combined-Function Magnets for the Next Generation of Beam Cancer Therapy Gantry	138
	S.T. Sanfilippo, A. Anghel, C. Calzolaio, A. Gerbershagen, J.M. Schippers PSI, Villigen PSI, Switzerland
	An increasing number of proton therapy facilities are being planned and built at hospital based centers. Many facilities use rotatable gantry beamlines to direct the proton or ion-beam at the patient from different angles. A key issue is the need to make future gantries lighter and more compact with the use of cryogen-free superconducting magnets, in particular for the final bending section which can be of large aperture. Benefits of using the superconducting technology are: (1) the possibility to have a large momentum acceptance, hence reducing the need to ramp the magnet and enabling new treatment techniques, (2) the size reduction due to a lower bend radius and (3) the weight reduction up to a factor ten. The latter will also significantly reduce the costs of the supporting structure. We present a conceptual design based on Nb3Sn superconducting combined function magnets (dipole, quadrupole, sextupole). The geometry using racetracks, the superconducting strand and cable parameters and the results of the thermal and the mechanical studies are reported. These magnets will work at a temperature of about 4.2 K cooled with cryocoolers.
	Slides THCDMH01 [7.959 MB]
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THCDMH03	The Progress on Manufacturing and Testing of the SC Magnets for the NICA Booster 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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THCDMH04	The FAIR-NICA Collaboration for Production and Testing of Superconducting Accelerator Magnets
	E.S. Fischer, A. Bleile, J.P. Meier, A. Mierau, P. Schnizer, P.J. Spiller, K. Sugita GSI, Darmstadt, Germany H.G. Khodzhibagiyan, S.A. Kostromin, G.V. Trubnikov JINR, Dubna, Moscow Region, Russia
	Based on a common R&D process GSI Darmstadt and JINR Dubna had optimized the operation parameters of their fast ramped accelerator magnets designated for the heavy ion synchrotron SIS100 of the FAIR project as well as for the booster synchrotron and the heavy ion collider of the NICA project. These facilities are now under construction and the series production of the main magnets and correctors for SIS100 and NICA booster was launched. In parallel the superconducting magnet test facilities were commissioned in both institutes. The quadrupole and corrector magnets of the SIS100 will be produced by JINR as a Russian In-Kind contribution to FAIR and cold tested at the common NICA test facility in Dubna. We summarize the main parameters of the optimized magnets related to the magnetic field quality and the cooling efficiency, present the first production experiences and test results and give an outlook on the overall project schedules.
	Slides THCDMH04 [19.788 MB]
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TUPSA028	QWR resonator Cavities Electrodynamics Simulations for new Nuclotron-NICA Injector	273
	M. Gusarova, T. Kulevoy, M.V. Lalayan, S.M. Polozov, N.P. Sobenin, D.V. Surkov, S.A. Terekhov, S.E. Toporkov, V. Zvyagintsev MEPhI, Moscow, Russia A.V. Butenko, A.O. Sidorin, G.V. Trubnikov JINR, Dubna, Moscow Region, Russia V. Zvyagintsev TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
	New linac-injector for Nuclotron-NICA is planned to consist of quarter-wave coaxial cavities (QWR) having velocities of ~0.07c and ~0.12c (beam energy from 5 to 17 MeV). These cavities are to be superconducting and operating at 162 MHz. Current results of the QWR cavities electrodynamics simulations and geometry optimizations are presented.
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THPSC041	New Superconducting Linac Injector Project for Nuclotron-Nica: Current Results	626
	S.M. Polozov, M. Gusarova, T. Kulevoy, M.V. Lalayan, A.V. Samoshin, S.E. Toporkov, V. Zvyagintsev MEPhI, Moscow, Russia M.A. Baturitski, S.A. Maksimenko INP BSU, Minsk, Belarus A.V. Butenko, A.O. Sidorin, G.V. Trubnikov JINR, Dubna, Moscow Region, Russia A.A. Marysheva, V.S. Petrakovsky, I.L. Pobol, A.I. Pokrovsky, D.A. Shparla, S.V. Yurevich Physical-Technical Institute of the National Academy of Sciences of Belarus, Minsk, Belarus V. Zvyagintsev TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada
	The joint collaboration of JINR, NRNU MEPhI, INP BSU, PTI NASB, BSUIR and SPMRC NASB started in 2015 a new project on the development of superconducting cavities production and test technologies and new linac-injector design. This linac intend for the protons acceleration up to25 MeV (up to 50 MeV after upgrade) and light ions acceleration up to ~7.5 MeV/u for Nuclotron-NICA injection. Current status of linac general design and results of the beam dynamics simulation and SRF technology development are presented in this report.
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THPSC042	Testing of SC-magnets of NICA Booster & Collider
	S.A. Kostromin, V.V. Borisov, A.M. Donyagin, A.R. Galimov, O. Golubitsky, H.G. Khodzhibagiyan, B.Yu. Kondratiev, S.A. Korovkin, G.L. Kuznetsov, D.N. Nikiforov, A.Y. Starikov, A. Tikhomirov JINR, Dubna, Moscow Region, Russia T.E. Serochkina, A.V. Shemchuk JINR/VBLHEP, Dubna, Moscow region, Russia
	Serial tests of sc-magnets of NICA Booster started at the dedicated facility of LHEP JINR. Magnets' assembly and testing workflow presented. Main steps of the magnet preparation to the cryogenics tests are described. First results of serial tests are presented and discussed.
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THPSC043	Series Magnetic Measurements Of NICA Booster Dipoles	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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Paper

Title

Page

First Cold Tests of the Superconducting cw Demonstrator at GSI

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.

Slides WECBMH01 [4.677 MB]

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THZMH01

SC and HTS-related Activity at IHEP

128

S. Kozub, A.I. Ageev, I. Bogdanov, E. Kashtanov, V.A. Pokrovsky, P.A. Shcherbakov, L.S. Shirshov, V.I. Shuvalov, I. Slabodchikov, V. Sytnik, L. Tkachenko, O.V. Trusov, S. Zinchenko
IHEP, Moscow Region, Russia

The SC program at IHEP of NRC Â“Kurchatov InstituteÂ” has been developed intensively in the 1980ies in the framework of the UNK project. More than a hundred of models of the SC magnets of various designs, and then the pilot batch consisting of 25 full-scale dipoles and 4 quadrupoles have been designed, manufactured and tested at IHEP. Two SC magnetic systems of Electron Lens for the Tevatron collider were developed, manufactured, shipped and successfully brought into operation. Development of fast-cycling SC magnets for the FAIR project is discussed. Racetrack coils from HTS-2G tape for electrical machines that were developed, manufactured and tested are reported. Test and trial results with HTS dipole magnets employing Bi2223 as well as second-generation HTS are also reviewed.

Slides THZMH01 [6.546 MB]

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THZMH02

Status of Superconducting ISAC-II and eLinac accelerators, and SRF Activities at TRIUMF

133

V. Zvyagintsev, Z.T. Ang, K. Fong, T. Junginger, J.J. Keir, A.N. Koveshnikov, C. Laforge, D. Lang, R.E. Laxdal, Y. Ma, N. Muller, R.R. Nagimov, D.W. Storey, E. Thoeng, B.S. Waraich, Z.Y. Yao, Q. Zheng
TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada

The development for superconducting accelerators has been started at TRIUMF in 2000. The main milestones and material implementations are: 2006 - commissioning of Phase-I of the heavy ion superconducting accelerator ISAC-II, 2010 - Phase-II, 2014 - commissioning of Phase-I of the superconducting electron linear accelerator eLinac. We are using the accumulated experience and resources for farther SRF development at TRIUMF and external projects VECC, RISP, FRIB and SLAC. TRIUMF is also running fundamental studies for SRF and educational program for universities. Status of Superconducting ISAC-II and eLinac accelerators and SRF development aspects, results and plans are discussed.

Slides THZMH02 [20.602 MB]

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THCDMH01

Conceptual Design of Superconducting Combined-Function Magnets for the Next Generation of Beam Cancer Therapy Gantry

138

S.T. Sanfilippo, A. Anghel, C. Calzolaio, A. Gerbershagen, J.M. Schippers
PSI, Villigen PSI, Switzerland

An increasing number of proton therapy facilities are being planned and built at hospital based centers. Many facilities use rotatable gantry beamlines to direct the proton or ion-beam at the patient from different angles. A key issue is the need to make future gantries lighter and more compact with the use of cryogen-free superconducting magnets, in particular for the final bending section which can be of large aperture. Benefits of using the superconducting technology are: (1) the possibility to have a large momentum acceptance, hence reducing the need to ramp the magnet and enabling new treatment techniques, (2) the size reduction due to a lower bend radius and (3) the weight reduction up to a factor ten. The latter will also significantly reduce the costs of the supporting structure. We present a conceptual design based on Nb3Sn superconducting combined function magnets (dipole, quadrupole, sextupole). The geometry using racetracks, the superconducting strand and cable parameters and the results of the thermal and the mechanical studies are reported. These magnets will work at a temperature of about 4.2 K cooled with cryocoolers.

Slides THCDMH01 [7.959 MB]

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THCDMH03

The Progress on Manufacturing and Testing of the SC Magnets for the NICA Booster 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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THCDMH04

The FAIR-NICA Collaboration for Production and Testing of Superconducting Accelerator Magnets

E.S. Fischer, A. Bleile, J.P. Meier, A. Mierau, P. Schnizer, P.J. Spiller, K. Sugita
GSI, Darmstadt, Germany
H.G. Khodzhibagiyan, S.A. Kostromin, G.V. Trubnikov
JINR, Dubna, Moscow Region, Russia

Based on a common R&D process GSI Darmstadt and JINR Dubna had optimized the operation parameters of their fast ramped accelerator magnets designated for the heavy ion synchrotron SIS100 of the FAIR project as well as for the booster synchrotron and the heavy ion collider of the NICA project. These facilities are now under construction and the series production of the main magnets and correctors for SIS100 and NICA booster was launched. In parallel the superconducting magnet test facilities were commissioned in both institutes. The quadrupole and corrector magnets of the SIS100 will be produced by JINR as a Russian In-Kind contribution to FAIR and cold tested at the common NICA test facility in Dubna. We summarize the main parameters of the optimized magnets related to the magnetic field quality and the cooling efficiency, present the first production experiences and test results and give an outlook on the overall project schedules.

Slides THCDMH04 [19.788 MB]

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TUPSA028

QWR resonator Cavities Electrodynamics Simulations for new Nuclotron-NICA Injector

273

M. Gusarova, T. Kulevoy, M.V. Lalayan, S.M. Polozov, N.P. Sobenin, D.V. Surkov, S.A. Terekhov, S.E. Toporkov, V. Zvyagintsev
MEPhI, Moscow, Russia
A.V. Butenko, A.O. Sidorin, G.V. Trubnikov
JINR, Dubna, Moscow Region, Russia
V. Zvyagintsev
TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada

New linac-injector for Nuclotron-NICA is planned to consist of quarter-wave coaxial cavities (QWR) having velocities of ~0.07c and ~0.12c (beam energy from 5 to 17 MeV). These cavities are to be superconducting and operating at 162 MHz. Current results of the QWR cavities electrodynamics simulations and geometry optimizations are presented.

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THPSC041

New Superconducting Linac Injector Project for Nuclotron-Nica: Current Results

626

S.M. Polozov, M. Gusarova, T. Kulevoy, M.V. Lalayan, A.V. Samoshin, S.E. Toporkov, V. Zvyagintsev
MEPhI, Moscow, Russia
M.A. Baturitski, S.A. Maksimenko
INP BSU, Minsk, Belarus
A.V. Butenko, A.O. Sidorin, G.V. Trubnikov
JINR, Dubna, Moscow Region, Russia
A.A. Marysheva, V.S. Petrakovsky, I.L. Pobol, A.I. Pokrovsky, D.A. Shparla, S.V. Yurevich
Physical-Technical Institute of the National Academy of Sciences of Belarus, Minsk, Belarus
V. Zvyagintsev
TRIUMF, Canada's National Laboratory for Particle and Nuclear Physics, Vancouver, Canada

The joint collaboration of JINR, NRNU MEPhI, INP BSU, PTI NASB, BSUIR and SPMRC NASB started in 2015 a new project on the development of superconducting cavities production and test technologies and new linac-injector design. This linac intend for the protons acceleration up to25 MeV (up to 50 MeV after upgrade) and light ions acceleration up to ~7.5 MeV/u for Nuclotron-NICA injection. Current status of linac general design and results of the beam dynamics simulation and SRF technology development are presented in this report.

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THPSC042

Testing of SC-magnets of NICA Booster & Collider

S.A. Kostromin, V.V. Borisov, A.M. Donyagin, A.R. Galimov, O. Golubitsky, H.G. Khodzhibagiyan, B.Yu. Kondratiev, S.A. Korovkin, G.L. Kuznetsov, D.N. Nikiforov, A.Y. Starikov, A. Tikhomirov
JINR, Dubna, Moscow Region, Russia
T.E. Serochkina, A.V. Shemchuk
JINR/VBLHEP, Dubna, Moscow region, Russia

Serial tests of sc-magnets of NICA Booster started at the dedicated facility of LHEP JINR. Magnets' assembly and testing workflow presented. Main steps of the magnet preparation to the cryogenics tests are described. First results of serial tests are presented and discussed.

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THPSC043

Series Magnetic Measurements Of NICA Booster Dipoles

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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