Design of Magnet System for RIKEN Superconducting ECR Ion Source

J.Ohnishi; T.Nakagawa; Y.Higurashi; M.Kidera; H.Saito; A.Goto

Chinese Physics C> 2007, Vol. 31> Issue(S1) : 37-40

Design of Magnet System for RIKEN Superconducting ECR Ion Source

Nishina Cnter for Accelerator-based Science, RIKEN, Hirosawa 2-1, Wako, Saitama, 351-0198, Japan

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Superconducting magnet system for a 28GHz ECR ion source has been designed. The maximum axial magnetic fields are 4T at the rf injection side and 2T at the beam extraction side, respectively. The hexapole magnetic field is about 2T on the inner surface of the plasma chamber. The superconducting coils consist of six solenoids and six racetrack windings for a hexapole field. Two kinds of coil arrangements were investigated: one is an arrangement in which the hexpole coil is located in the bore of the solenoids, and another is the reverse of it. The coils use NbTi-Copper conductor and are bath-cooled in liquid helium. The six solenoids are excited with individual power supplies to search for the optimal axial field distribution. The current leads use high Tc material and the cryogenic system is operated in LHe re-condensation mode using small refrigerators. The thermal insulated supports of the cold mass have also been designed based on the calculated results of the magnetic force. The heat loads to 70K and LHe stages were estimated from the design of the supports, the current leads and so on.

References

[1]	. Yano Y. Proc. 17th Int. Conf. on Cyclotrons and Their Applications, Tokyo, 2004. 169-1732. Taylor C et al. IEEE Trans. Applied Superconductivity, 2000, 10: 2243. ZHAO H. Proc. 17th Int. Conf. on Cyclotrons and Their Applications, Tokyo, 2004. 269-271

[1]	ZHANG Meng , PENG Shi-Xiang , SONG Zhi-Zhong , ZHAO Jie , XU Rong , YUAN Zhong-Xi , GUO Zhi-Yu , LU Yuan-Rong , YU Jin-Xiang . Experimental Results of an ECR Oxygen Source and a LEBT System for 1MeV ISR RFQ Accelerator Upgrade Project. Chinese Physics C, 2008, 32(S1): 220-222.
[2]	G.S.Taki¹ , P.R.Sarma¹ , A.G.Drentje² , T.Nakagawa³ , P.K.Ray⁴ , R.K.Bhandari¹ . Observation of Burst Frequency in Extracted ECR Ion Current. Chinese Physics C, 2007, 31(S1): 170-173.
[3]	C.Lyneis , D.Leitner . Concept for a Fourth Generation ECR Ion Source (abstract only). Chinese Physics C, 2007, 31(S1): 237-237.
[4]	S.Golubev , A.Bokhanov , I.Izotov , S.Razin , A.Sidorov , V.Skalyga , A.Vodopyanov , V.Zorin . Gasdynamic ECR Sources of Multichared Ions (abstract only). Chinese Physics C, 2007, 31(S1): 238-238.
[5]	P.Jardin , C.Canet , J.C.Cornell , M.Dupuis , C.Eleon , J.L.Flambard , G.Gaubert , N.Lecesne , P.Leherissier , F.Lemagnen , R.Leroy , J.Y.Pacquet , M.G.Saint laurent , A.C.C.Villari . ECR Ion Sources for Radioactive Ion Beam Production. Chinese Physics C, 2007, 31(S1): 206-210.
[6]	PENG Shi-Xiang , SONG Zhi-Zhong , QIAN Feng , YUAN Zhong-Xi , XU Rong , YU Jin-Xiang , GUO Zhi-Yu . An ECR Oxygen Source and a LEBT System Developed for 1 MeV ISR RFQ Accelerator Upgrade. Chinese Physics C, 2007, 31(S1): 63-65.
[7]	SHANG Yong , SUN Liang-Ting , MA Bao-Hua , ZHANG Xue-Zhen , FENG Yu-Cheng , CAO Yun , GUO Xiao-Hong , LI Xi-Xia , LI Jin-Yu , LU Wang , WANG Hui , ZHAO HUAN-Yu , LI Jie . The Lanzhou All Permanent ECR Ion Source No.1 -LAPECR1. Chinese Physics C, 2007, 31(S1): 115-117.
[8]	P.A.Závodszky , B.Arend;D.Cole , J.DeKamp , M.Doleans , G.Machicoane , F.Marti , P.Miller , J.Moskalik , W.Nurnberger , J.Ottarson , M.Steiner , J.Stetson , J.Vincent , X.Wu , A.Zeller , Q.Zhao , . Status Report of the NSCL/MSU ECR Ion Sources. Chinese Physics C, 2007, 31(S1): 18-22.
[9]	R.Gobin , P-Y.Beauvais , A.Ben Ismail , D.Bogard , O.Delferriere , D.De Menezes , R.Duperrier , Y.Gauthier , F.Harrault , P-A.Leroy , O.Tuske , D.Uriot . ECR Light Ion Sources at CEA/Saclay. Chinese Physics C, 2007, 31(S1): 46-50.
[10]	M.Kidera¹ , T.Nakagawa¹ , T.Kageyama¹ , Y.Higurashi¹ , H.Haba¹ , T.Aihara² , T.Ohki² , K.Kobayashi² , A.Goto¹ , Y.Yano¹ . Metal Ion Production with RIKEN 18 GHz-ECRIS. Chinese Physics C, 2007, 31(S1): 97-100.
[11]	M.Muramatsu¹ , 2 , A.Kitagawa² , Y.Iwata² , K.Yamamoto² , H.Ogawa² , S.Hojo² , Y.Sakamoto² , T.Honma² , W.Takasugi³ , M.Wakaisami³ , Y.Yoshida⁴ , T.Kubo⁵ , Y.Kato⁵ , S.Biri⁶ . Present Status of NIRS ECR Ion Sources. Chinese Physics C, 2007, 31(S1): 60-62.
[12]	C.Bieth¹ , J.L.Delvaux² , F.Varenne³ , M.Duval³ , M.P.Bourgarel¹ , J.Fermé¹ . Studies and Design of a Dual Beam Axial Injection System Using H- Cusp Source and ECR Ion Source for He for IBA C70 Cyclotron. Chinese Physics C, 2007, 31(S1): 223-225.
[13]	A.Hobl , B.Fischer , C.Radermacher , D.Krischel , M.Jordan , M.M.Reumers . Superconducting Magnets for ECRIS - Design Aspects and Industrial Production. Chinese Physics C, 2007, 31(S1): 27-30.
[14]	T.Nakagawa¹ , M.Kidera¹ , Y.Higurasi¹ , J.Ohnishi¹ , T.Kageyama¹ , T.Aihara² , A.Goto¹ , Y.Yano¹ . Magnetic Field Configuration Effect and New ECRISs for RIKEN RIBF Project. Chinese Physics C, 2007, 31(S1): 133-136.
[15]	V.V.Bekhterev¹ , S.L.Bogomolov¹ , V.I.Datskov² , V.M.Drobin² , S.N.Dmitriev¹ , A.A.Efremov¹ , V.N.Loginov¹ , A.N.Lebedev¹ , H.Malinowski³ , V.V.Seleznev² , A.Shishov² , G.P.Tsvineva² . The Project of the Superconducting ECR Ion Source DECRIS-SC2. Chinese Physics C, 2007, 31(S1): 23-26.
[16]	SUN Liang-Ting , ZHAO Hong-Wei . Study on Designing of Hexapole Magnet of ECR Ion Source. Chinese Physics C, 2004, 28(6): 644-649.
[17]	ZHANG Zi-Min , ZHAO Hong-Wei , ZHANG Xue-Zhen , GUO Xiao-Hong , LI Xi-Xia , LI Jin-Yu , FENG Yu-Cheng , WANG Hui , MA Bao-Hua , GAO Ji-Yuan , CAO Yun , SUN Liang-Ting , MA Lei . High Charge State ECR Ion Source-LECR3. Chinese Physics C, 2003, 27(10): 914-918.
[18]	ZHANG ZiMin , ZHAO HongWei , ZHAO YuBin , ZHANG XueZhen , GUO XiaoHong , LIU ZhanWen . Production of Metallic Ions Beam in ECR Ion Source. Chinese Physics C, 2000, 24(10): 974-978.
[19]	Zhao Yubin , Liu Zhanwei , Zhao Hongwei , Ding Junzhang , Cao Yun , Zhang Zimin , Zhang Xuezhen , Guo Xiaohong . A Single Charge State ECR Ion Source. Chinese Physics C, 1999, 23(11): 1125-1128.
[20]	XU Yong-Xing , LIU Zhan-Wen , WEI Bao-Wen . Design Calculation of a Improved ECR Ion Source. Chinese Physics C, 1991, 15(4): 343-348.

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J.Ohnishi, T.Nakagawa, Y.Higurashi, M.Kidera, H.Saito and A.Goto. Design of Magnet System for RIKEN Superconducting ECR Ion Source[J]. Chinese Physics C, 2007, 31(S1): 37-40.

J.Ohnishi, T.Nakagawa, Y.Higurashi, M.Kidera, H.Saito and A.Goto. Design of Magnet System for RIKEN Superconducting ECR Ion Source[J]. Chinese Physics C, 2007, 31(S1): 37-40. shu

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Received: 2007-05-30
Revised: 1900-01-01

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沈阳化工大学材料科学与工程学院沈阳 110142

Design of Magnet System for RIKEN Superconducting ECR Ion Source

Corresponding author: J.Ohnishi,

Nishina Cnter for Accelerator-based Science, RIKEN, Hirosawa 2-1, Wako, Saitama, 351-0198, Japan

Received Date: 2007-05-30

Accepted Date: 1900-01-01

Available Online: 2007-01-03

Abstract: Superconducting magnet system for a 28GHz ECR ion source has been designed. The maximum axial magnetic fields are 4T at the rf injection side and 2T at the beam extraction side, respectively. The hexapole magnetic field is about 2T on the inner surface of the plasma chamber. The superconducting coils consist of six solenoids and six racetrack windings for a hexapole field. Two kinds of coil arrangements were investigated: one is an arrangement in which the hexpole coil is located in the bore of the solenoids, and another is the reverse of it. The coils use NbTi-Copper conductor and are bath-cooled in liquid helium. The six solenoids are excited with individual power supplies to search for the optimal axial field distribution. The current leads use high Tc material and the cryogenic system is operated in LHe re-condensation mode using small refrigerators. The thermal insulated supports of the cold mass have also been designed based on the calculated results of the magnetic force. The heat loads to 70K and LHe stages were estimated from the design of the supports, the current leads and so on.

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Design of Magnet System for RIKEN Superconducting ECR Ion Source

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