RUPAC2018 - List of Authors (Syresin, E.)

Paper	Title	Page
MOXMH03	Status of Accelerator Complex NICA	12
	E. Syresin, O.I. Brovko, A.V. Butenko, E.E. Donets, E.V. Gorbachev, A. Govorov, V. Karpinsky, V. Kekelidze, H.G. Khodzhibagiyan, S.A. Kostromin, A.D. Kovalenko, O.S. Kozlov, K.A. Levterov, I.N. Meshkov, A.O. Sidorin, V. Slepnev, A.V. Smirnov, G.V. Trubnikov, A. Tuzikov, V. Volkov JINR, Dubna, Moscow Region, Russia V.V. Parkhomchuk, A.G. Tribendis, A.N. Zhuravlev BINP SB RAS, Novosibirsk, Russia
	The Nuclotron-based Ion Collider fAcility (NICA) is under construction in JINR. The NICA goals are providing of colliding beams for studies of hot and dense strongly interacting baryonic matter and spin physics. The accelerator facility of collider NICA consists of following elements: acting Alvarez-type linac LU-20 of light ions at energy 5 MeV/u, constructed a new light ion linac at ion energy 7 MeV/u with additional acceleration section for protons at energy 13 MeV, acting heavy ion linac HILAC with RFQ and IH DTL sections at energy 3.2 MeV/u, superconducting booster synchrotron at energy up 600 MeV/u, acting superconducting synchrotron Nuclotron at gold ion energy 4.5 GeV/n and two collider storage rings with two interaction points. The status of acceleration complex NICA is under discussion.
	Slides MOXMH03 [21.679 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-MOXMH03
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TUZMH04	Status of the Nuclotron	49
	A.O. Sidorin, N.N. Agapov, A.V. Alfeev, V. Andreev, A.A. Baldin, O.I. Brovko, V.V. Bugaev, A.V. Butenko, D.E. Donets, E.D. Donets, E.E. Donets, A.V. Eliseev, V.V. Fimushkin, E.V. Gorbachev, A. Govorov, E.V. Ivanov, V. Karpinsky, H.G. Khodzhibagiyan, A. Kirichenko, S.A. Kostromin, A.D. Kovalenko, O.S. Kozlov, K.A. Levterov, V.A. Mikhailov, V.A. Monchinsky, A. Nesterov, A.L. Osipenkov, S. Romanov, P.A. Rukojatkin, A.A. Shurygin, V. Slepnev, A.V. Smirnov, E. Syresin, A. Tuzikov, B. Vasilishin, V. Volkov JINR, Dubna, Moscow Region, Russia A. Belov RAS/INR, Moscow, Russia A.V. Philippov JINR/VBLHEP, Dubna, Moscow region, Russia
	Since last RuPAC two runs of the Nuclotron operation were performed. The run #54 performed in February ' March of 2017 was dedicated to polarized beam acceleration. One of the achievements was the acceleration of polarized proton beam performed at the Nuclotron for the first time. During the run #55 in February- April of 2018 the Nuclotron provided heavy ion beams for first fixed target experiments in the frame of the NICA scientific program. These and other results of the facility operation and development are presented.
	Slides TUZMH04 [17.667 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUZMH04
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TUCDMH01	Heavy Ion Injection Chain of NICA Collider	52
	A. Tuzikov, D.E. Donets, A. Govorov, K.A. Levterov, I.N. Meshkov, A.V. Smirnov, E. Syresin, V. Volkov JINR, Dubna, Moscow Region, Russia A.V. Butenko JINR/VBLHEP, Dubna, Moscow region, Russia V.A. Kiselev, I.N. Okunev, S.V. Sinyatkin, A.N. Zhuravlev BINP SB RAS, Novosibirsk, Russia O. Tasset-Maye SIGMAPHI S.A., Vannes, France
	New accelerator complex is constructed by Joint Institute for Nuclear Research (Dubna, Russia) in frame of Nuclotron-based Ion Collider fAcility (NICA) project. The NICA layout includes new 600 MeV/u Booster and existing Nuclotron synchrotrons as parts of the heavy ion injection chain of the NICA Collider as well as transport beam lines which are the important link for the whole accelerator facility. Designs and current status of beam transfer systems of the NICA complex are presented in this paper.
	Slides TUCDMH01 [19.649 MB]
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WECAMH02	Light Ion Linear Accelerator up to 7 AMeV for NICA	68
	H. Höltermann, M. Basten, B. Koubek, H. Podlech, U. Ratzinger, A. Schempp, R. Tiede BEVATECH, Frankfurt, Germany A.M. Bazanov, A.V. Butenko, D.E. Donets, B.V. Golovenskiy, A. Govorov, V.V. Kobets, A.D. Kovalenko, K.A. Levterov, D.A. Lyuosev, A.A. Martynov, D.O. Ponkin, K.V. Shevchenko, I.V. Shirikov, A.O. Sidorin, A.V. Smirnov, E. Syresin, G.V. Trubnikov JINR, Dubna, Moscow Region, Russia C. K. Kampmeyer, H. Schlarb DESY, Hamburg, Germany
	In the frame of the NICA ion collider upgrade a new light ion frontend linac (LILac) for protons and ions with a mass to charge ration of up to 3 will be built. LILac will consist out of 3 parts: 1. a normal conducting Linac up to 7 AMeV, 2. a normal conducting proton energy upgrade up to 13 AMeV, 3. a superconducting section. The normal conducting Linac up to 7 AMeV will be built in collaboration between JINR and Bevatech GmbH. The technical design of LILac up to 7 AMeV is discussed in this paper.
	Slides WECAMH02 [23.545 MB]
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-WECAMH02
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WECBMH01	Superconducting Linacs Development for Current and Future Russian Accelerator Projects: Progress and Problems
	S.M. Polozov, W.A. Barth, M. Gusarova, T. Kulevoy, M.V. Lalayan, A.V. Samoshin, S. Yaramyshev, V. Zvyagintsev MEPhI, Moscow, Russia W.A. Barth, S. Yaramyshev GSI, Darmstadt, Germany W.A. Barth HIM, Mainz, Germany A.V. Butenko, A.S. Fomichev, L.V. Grigorenko, B.Y. Sharkov, E. Syresin, G.V. Trubnikov JINR, Dubna, Moscow Region, Russia T. Kulevoy ITEP, Moscow, Russia V. Zvyagintsev TRIUMF, Vancouver, Canada
	Superconducting linac is nowadays a standard technology to generate high-energy proton and ion beams especially for CW operation mode. Starting from SNS at ORNL * superconducting radio frequency (SRF) technology and superconducting (SC) linacs are changed from the exotic to classical technology of today. Many ion accelerator complexes developed in USA, EU, Japan, China, Korea and other countries for spallation neutron sources, production of radioactive ion beams and ADS (Accelerator Driven System) drivers use SC cavities. Currently, the mega-science accelerator project NICA (Nuclotron-based Ion Collider fAcility, JINr) as well as new proposed projects DERICA * (Dubna Electron-Radioactive Ion Collider fAcility), NEPTUN, BELA ***(Based on ECR and Linear Accelerator multidisciplinary facility), etc. cannot be constructed without SRF technologies development in Russia. New ambitious program of SRF technology has been started few years ago by JINR in collaboration with MEPhI, NRC KI ITEP, BSU, PTI NANB, TRIUMF and GSI. Current progress in general conceptual design of new SC linacs, beam dynamics simulation of SC cavities and related issues will be discussed in this presentation. N. Holtkamp. Proc. of EPAC'2006, 29-33. G. Trubnikov, N. Agapov, V. Alexandrov et al., Proc. of IPAC'10, 693 (2010). * http://aculina.jinr.ru/derica.php
	Slides WECBMH01 [10.811 MB]
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TUPSA02	Correction of the Magnetic Field in the NICA Collider	149
	O.S. Kozlov, S.A. Kostromin, I.N. Meshkov, E. Syresin JINR, Dubna, Moscow Region, Russia A.V. Butenko, A.O. Sidorin JINR/VBLHEP, Dubna, Moscow region, Russia
	The magnetic field correction systems in the optimized lattice of the NICA collider are considered. The dipole, normal and skew quadrupoles, sextupole and octupole additional windings are placed in the corrector elements to compensate separatly the alignment errors, betatron tune shifts, betatron coupling, chromaticity and non-linear fields. The overall correction effect should provide the required beam and luminosity lifetime of the collider.
DOI •	reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA02
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TUPSA25	Construction and RF Test of the Debuncher for NICA Light Ion Beam Line	197
	D.A. Zavadtsev, D. Churanov, Y.Z. Kalinin, L.V. Kravchuk, V.V. Paramonov, A.A. Zavadtsev RAS/INR, Moscow, Russia A.V. Butenko, A.V. Smirnov, E. Syresin JINR, Dubna, Moscow Region, Russia
	Debuncher is to be installed in the present beam line after the LU-20 linac in the light ion injector of the NICA facili-ty. The purpose of the debuncher is to reduce by a factor of up to ten the ion energy spread in the accelerated beam before injection into the Nuclotron. Relative ion speed is 0.1. Split-ring cavity driven from solid state RF amplifier at 145.25 MHz, should provide effective RF voltage up to 200 kV at 4 kW peak RF power. The RF controller allows adjust effective RF voltage for different ions: 58 kV for Z/A=1, 121 kV for Z/A=0.5 and 190 kV for Z/A=0.3. The debuncher cavity is provided with the stepper-motor driven capacitance tuner with 2 MHz tun-ing range.
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TUPSA51	New Output Channels for Nuclotron Accelerator
	T. Kulevoy, M.M. Kats, D.A. Liakin, Y.E. Titarenko ITEP, Moscow, Russia A.V. Andery JSC, Moscow, Russia D.V. Bobrovskiy, A.I. Chumakov MEPhI, Moscow, Russia A.V. Butenko, A. Tuzikov JINR/VBLHEP, Dubna, Moscow region, Russia E. Syresin, G.N. Timoshenko JINR, Dubna, Moscow Region, Russia
	In framework of Nuclotron-based Ion Collider fAcility (NICA) two new high energy channels are under development. At first channel is a test facility for investigation of the radiation resistance of the electronic components and equipments under irradiation by the heavy ion beams. In addition to activity at the Dubna Cyclotrons it will cover all requirements of Space industry. The second channel will be a test facility for biological experiments under the ion irradiation. The general layout of beam transport for both channels as well as the test-facilities for them are presented and discussed.
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WEPSB46	QWR and HWR SC Cavities R&D for New Superconducting Linac for JINR Nuclotron-NICA Injection
	M. Gusarova, T. Kulevoy, M.V. Lalayan, T.A. Lozeeva, S.V. Matsievskiy, R.E. Nemchenko, S.M. Polozov, A.V. Samoshin, V.L. Shatokhin, N.P. Sobenin, D.V. Surkov, K.V. Taletskiy, V. Zvyagintsev MEPhI, Moscow, Russia A.A. Bakinowskaya, V.S. Petrakovsky, I.L. Pobol, A.I. Pokrovsky, D.A. Shparla, A. Shvedau, S.V. Yurevich, V.G. Zaleski Physical-Technical Institute of the National Academy of Sciences of Belarus, Minsk, Belarus M.A. Baturitski, S.A. Maksimenko INP BSU, Minsk, Belarus A.V. Butenko, N. Emelianov, M. Gusarova, A.O. Sidorin, E. Syresin, G.V. Trubnikov JINR, Dubna, Moscow Region, Russia S.E. Demyanov Scientific-Practical Materials Research Centre of the National Academy of Sciences of Belarus, Minsk, Belarus V.A. Karpovich BSU, Minsk, Belarus T. Kulevoy ITEP, Moscow, Russia V.N. Rodionova Belarussian State University, Scientific Research Institute of Nuclear Problems, Minsk, Belarus A.O. Sidorin Saint Petersburg State University, Saint Petersburg, Russia V. Zvyagintsev TRIUMF, Vancouver, Canada
	A superconducting or partially superconducting linac is discussed as new injector for Nuclotron-NICA complex. New linac will accelerate protons up to 25 MeV (and up to 50 MeV at the second stage of the project) and light ions to ~7.5 MeV/u. The progress in R&D of QWR and HWR superconducting cavities is discussed in this report. The design of QWR and its normal conducting copper model is finished and PTI NANB is ready to manufacture of the prototype. Two designs of HWR were discussed: one with a cylindrical central conductor and another with the conical one. The electrodynamics design of HWR had been finished before now but it should be corrected taking into account some manufacture problems. Current results of the development of the RF coupler and the test cryostat will also present .
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Paper

Title

Page

Status of Accelerator Complex NICA

12

E. Syresin, O.I. Brovko, A.V. Butenko, E.E. Donets, E.V. Gorbachev, A. Govorov, V. Karpinsky, V. Kekelidze, H.G. Khodzhibagiyan, S.A. Kostromin, A.D. Kovalenko, O.S. Kozlov, K.A. Levterov, I.N. Meshkov, A.O. Sidorin, V. Slepnev, A.V. Smirnov, G.V. Trubnikov, A. Tuzikov, V. Volkov
JINR, Dubna, Moscow Region, Russia
V.V. Parkhomchuk, A.G. Tribendis, A.N. Zhuravlev
BINP SB RAS, Novosibirsk, Russia

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

Slides MOXMH03 [21.679 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-MOXMH03

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TUZMH04

Status of the Nuclotron

49

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

Since last RuPAC two runs of the Nuclotron operation were performed. The run #54 performed in February ' March of 2017 was dedicated to polarized beam acceleration. One of the achievements was the acceleration of polarized proton beam performed at the Nuclotron for the first time. During the run #55 in February- April of 2018 the Nuclotron provided heavy ion beams for first fixed target experiments in the frame of the NICA scientific program. These and other results of the facility operation and development are presented.

Slides TUZMH04 [17.667 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUZMH04

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TUCDMH01

Heavy Ion Injection Chain of NICA Collider

52

A. Tuzikov, D.E. Donets, A. Govorov, K.A. Levterov, I.N. Meshkov, A.V. Smirnov, E. Syresin, V. Volkov
JINR, Dubna, Moscow Region, Russia
A.V. Butenko
JINR/VBLHEP, Dubna, Moscow region, Russia
V.A. Kiselev, I.N. Okunev, S.V. Sinyatkin, A.N. Zhuravlev
BINP SB RAS, Novosibirsk, Russia
O. Tasset-Maye
SIGMAPHI S.A., Vannes, France

New accelerator complex is constructed by Joint Institute for Nuclear Research (Dubna, Russia) in frame of Nuclotron-based Ion Collider fAcility (NICA) project. The NICA layout includes new 600 MeV/u Booster and existing Nuclotron synchrotrons as parts of the heavy ion injection chain of the NICA Collider as well as transport beam lines which are the important link for the whole accelerator facility. Designs and current status of beam transfer systems of the NICA complex are presented in this paper.

Slides TUCDMH01 [19.649 MB]

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUCDMH01

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WECAMH02

Light Ion Linear Accelerator up to 7 AMeV for NICA

68

H. Höltermann, M. Basten, B. Koubek, H. Podlech, U. Ratzinger, A. Schempp, R. Tiede
BEVATECH, Frankfurt, Germany
A.M. Bazanov, A.V. Butenko, D.E. Donets, B.V. Golovenskiy, A. Govorov, V.V. Kobets, A.D. Kovalenko, K.A. Levterov, D.A. Lyuosev, A.A. Martynov, D.O. Ponkin, K.V. Shevchenko, I.V. Shirikov, A.O. Sidorin, A.V. Smirnov, E. Syresin, G.V. Trubnikov
JINR, Dubna, Moscow Region, Russia
C. K. Kampmeyer, H. Schlarb
DESY, Hamburg, Germany

In the frame of the NICA ion collider upgrade a new light ion frontend linac (LILac) for protons and ions with a mass to charge ration of up to 3 will be built. LILac will consist out of 3 parts: 1. a normal conducting Linac up to 7 AMeV, 2. a normal conducting proton energy upgrade up to 13 AMeV, 3. a superconducting section. The normal conducting Linac up to 7 AMeV will be built in collaboration between JINR and Bevatech GmbH. The technical design of LILac up to 7 AMeV is discussed in this paper.

Slides WECAMH02 [23.545 MB]

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reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-WECAMH02

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WECBMH01

Superconducting Linacs Development for Current and Future Russian Accelerator Projects: Progress and Problems

S.M. Polozov, W.A. Barth, M. Gusarova, T. Kulevoy, M.V. Lalayan, A.V. Samoshin, S. Yaramyshev, V. Zvyagintsev
MEPhI, Moscow, Russia
W.A. Barth, S. Yaramyshev
GSI, Darmstadt, Germany
W.A. Barth
HIM, Mainz, Germany
A.V. Butenko, A.S. Fomichev, L.V. Grigorenko, B.Y. Sharkov, E. Syresin, G.V. Trubnikov
JINR, Dubna, Moscow Region, Russia
T. Kulevoy
ITEP, Moscow, Russia
V. Zvyagintsev
TRIUMF, Vancouver, Canada

Superconducting linac is nowadays a standard technology to generate high-energy proton and ion beams especially for CW operation mode. Starting from SNS at ORNL * superconducting radio frequency (SRF) technology and superconducting (SC) linacs are changed from the exotic to classical technology of today. Many ion accelerator complexes developed in USA, EU, Japan, China, Korea and other countries for spallation neutron sources, production of radioactive ion beams and ADS (Accelerator Driven System) drivers use SC cavities. Currently, the mega-science accelerator project NICA ** (Nuclotron-based Ion Collider fAcility, JINr) as well as new proposed projects DERICA *** (Dubna Electron-Radioactive Ion Collider fAcility), NEPTUN, BELA ****(Based on ECR and Linear Accelerator multidisciplinary facility), etc. cannot be constructed without SRF technologies development in Russia. New ambitious program of SRF technology has been started few years ago by JINR in collaboration with MEPhI, NRC KI ITEP, BSU, PTI NANB, TRIUMF and GSI. Current progress in general conceptual design of new SC linacs, beam dynamics simulation of SC cavities and related issues will be discussed in this presentation.
* N. Holtkamp. Proc. of EPAC'2006, 29-33.
** G. Trubnikov, N. Agapov, V. Alexandrov et al., Proc. of IPAC'10, 693 (2010).
*** http://aculina.jinr.ru/derica.php

Slides WECBMH01 [10.811 MB]

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TUPSA02

Correction of the Magnetic Field in the NICA Collider

149

O.S. Kozlov, S.A. Kostromin, I.N. Meshkov, E. Syresin
JINR, Dubna, Moscow Region, Russia
A.V. Butenko, A.O. Sidorin
JINR/VBLHEP, Dubna, Moscow region, Russia

The magnetic field correction systems in the optimized lattice of the NICA collider are considered. The dipole, normal and skew quadrupoles, sextupole and octupole additional windings are placed in the corrector elements to compensate separatly the alignment errors, betatron tune shifts, betatron coupling, chromaticity and non-linear fields. The overall correction effect should provide the required beam and luminosity lifetime of the collider.

DOI •

reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA02

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TUPSA25

Construction and RF Test of the Debuncher for NICA Light Ion Beam Line

197

D.A. Zavadtsev, D. Churanov, Y.Z. Kalinin, L.V. Kravchuk, V.V. Paramonov, A.A. Zavadtsev
RAS/INR, Moscow, Russia
A.V. Butenko, A.V. Smirnov, E. Syresin
JINR, Dubna, Moscow Region, Russia

Debuncher is to be installed in the present beam line after the LU-20 linac in the light ion injector of the NICA facili-ty. The purpose of the debuncher is to reduce by a factor of up to ten the ion energy spread in the accelerated beam before injection into the Nuclotron. Relative ion speed is 0.1. Split-ring cavity driven from solid state RF amplifier at 145.25 MHz, should provide effective RF voltage up to 200 kV at 4 kW peak RF power. The RF controller allows adjust effective RF voltage for different ions: 58 kV for Z/A=1, 121 kV for Z/A=0.5 and 190 kV for Z/A=0.3. The debuncher cavity is provided with the stepper-motor driven capacitance tuner with 2 MHz tun-ing range.

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reference for this paper ※ https://doi.org/10.18429/JACoW-RUPAC2018-TUPSA25

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TUPSA51

New Output Channels for Nuclotron Accelerator

T. Kulevoy, M.M. Kats, D.A. Liakin, Y.E. Titarenko
ITEP, Moscow, Russia
A.V. Andery
JSC, Moscow, Russia
D.V. Bobrovskiy, A.I. Chumakov
MEPhI, Moscow, Russia
A.V. Butenko, A. Tuzikov
JINR/VBLHEP, Dubna, Moscow region, Russia
E. Syresin, G.N. Timoshenko
JINR, Dubna, Moscow Region, Russia

In framework of Nuclotron-based Ion Collider fAcility (NICA) two new high energy channels are under development. At first channel is a test facility for investigation of the radiation resistance of the electronic components and equipments under irradiation by the heavy ion beams. In addition to activity at the Dubna Cyclotrons it will cover all requirements of Space industry. The second channel will be a test facility for biological experiments under the ion irradiation. The general layout of beam transport for both channels as well as the test-facilities for them are presented and discussed.

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WEPSB46

QWR and HWR SC Cavities R&D for New Superconducting Linac for JINR Nuclotron-NICA Injection

M. Gusarova, T. Kulevoy, M.V. Lalayan, T.A. Lozeeva, S.V. Matsievskiy, R.E. Nemchenko, S.M. Polozov, A.V. Samoshin, V.L. Shatokhin, N.P. Sobenin, D.V. Surkov, K.V. Taletskiy, V. Zvyagintsev
MEPhI, Moscow, Russia
A.A. Bakinowskaya, V.S. Petrakovsky, I.L. Pobol, A.I. Pokrovsky, D.A. Shparla, A. Shvedau, S.V. Yurevich, V.G. Zaleski
Physical-Technical Institute of the National Academy of Sciences of Belarus, Minsk, Belarus
M.A. Baturitski, S.A. Maksimenko
INP BSU, Minsk, Belarus
A.V. Butenko, N. Emelianov, M. Gusarova, A.O. Sidorin, E. Syresin, G.V. Trubnikov
JINR, Dubna, Moscow Region, Russia
S.E. Demyanov
Scientific-Practical Materials Research Centre of the National Academy of Sciences of Belarus, Minsk, Belarus
V.A. Karpovich
BSU, Minsk, Belarus
T. Kulevoy
ITEP, Moscow, Russia
V.N. Rodionova
Belarussian State University, Scientific Research Institute of Nuclear Problems, Minsk, Belarus
A.O. Sidorin
Saint Petersburg State University, Saint Petersburg, Russia
V. Zvyagintsev
TRIUMF, Vancouver, Canada

A superconducting or partially superconducting linac is discussed as new injector for Nuclotron-NICA complex. New linac will accelerate protons up to 25 MeV (and up to 50 MeV at the second stage of the project) and light ions to ~7.5 MeV/u. The progress in R&D of QWR and HWR superconducting cavities is discussed in this report. The design of QWR and its normal conducting copper model is finished and PTI NANB is ready to manufacture of the prototype. Two designs of HWR were discussed: one with a cylindrical central conductor and another with the conical one. The electrodynamics design of HWR had been finished before now but it should be corrected taking into account some manufacture problems. Current results of the development of the RF coupler and the test cryostat will also present .

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