First Results of SECRAL at 18GHz for Intense Beam Production of Highly Charged Ions

ZHAO Hong-Wei; SUN Liang-Ting; GUO Xiao-Hong; ZHANG Xue-Zhen; ZHANG Zi-Min; YUANG Ping; LI Jin-Yu; FENG Yu-Cheng; HE Wei; SONG Ming-Tao; LI Xi-Xia

Chinese Physics C> 2007, Vol. 31> Issue(S1) : 8-12

First Results of SECRAL at 18GHz for Intense Beam Production of Highly Charged Ions

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Berkeley Ion Equipment, Inc. Santa Clara, California 95054, USA

Abstract
HTML
Reference
Related

PDF

Abstract：
A Superconducting ECR ion source with Advanced design in Lanzhou (SECRAL) was successfully built to produce intense beams of highly charged ions for Heavy Ion Research Facility in Lanzhou (HIRFL). The ion source has been optimized to be operated at 28GHz for its maximum performance. The superconducting magnet confinement configuration of the ion source consists of three axial solenoid coils and six sextupole coils with a cold iron structure as field booster and clamping. For 28GHz operation, the magnet assembly can produce peak mirror fields on axis 3.6T at injection, 2.2T at extraction and a radial sextupole field of 2.0T at plasma chamber wall. A unique feature of SECRAL is that the three axial solenoid coils are located inside of the sextupole bore in order to reduce the interaction forces between the sextupole coils and the solenoid coils. During the ongoing commissioning phase at 18GHz with a stainless steel chamber, tests with various gases and some metals have been conducted with microwave power less than 3.2kW and it turned out the performance is very promising. Some record ion beam intensities have been produced, for instance, 810eμA of O⁷⁺, 505eμA of Xe²⁰⁺, 306eμA of Xe²⁷⁺, 21eμA of Xe³⁴⁺, 2.4eμA of Xe³⁸⁺ and so on. To reach better results for highly charged ion beams, further modifications such as an aluminium chamber with better cooling, higher microwave power and a movable extraction system will be done, and also emittance measurements are being prepared.

References

[1]

. XIA J W et al. Nucl. Instrum. Methods, 2002, A488: 112. Geller R. Electron Cyclotron Resonance Ion Sources and ECR Plasma (Bristol: Institute of Physics), 19963. Hitz D, Girard A et al. Rev. Sci. Instrum., 2002, 73: 594. Gammino S, Ciavola G et al. Rev. Sci. Instrum., 2001, 72:40905. Leitner D, Lyneis C M et al. Rev. Sci. Instr., 2006, 77:03A3026. ZHAO H W, ZHANG Z M et al. Rev. Sci. Instr., 2004, 75:14417. ZHAO H W, SUN L T et al. Rev. Sci. Instr., 2006, 77:03A3338. Ciavola G, Gammino S et al. Rev. Sci. Instr., 2006, 77:03A3039. Nakagawa T, Higurashi Y et al. Rev. Sci. Instr., 2006, 77:03A30410. Zavodszky P A, Arend B et al. Rev. Sci. Instr., 2006, 77:03A33411. Gammino S, Ciavola G et al. Rev. Sci. Instrum., 1999, 70:357712. Leitner M A, Lyneis C M et al. Phys. Scr., 2001, T92: 17113. Taylor C E, Caspi S et al. IEEE Trans. Appl. Supercond.,2000, 10: 22414. ZHAO H W, ZHANG Z M et al. Rev. Sci. Instr., 2002, 73:44615. Leitner D et al. HEP NP, 2007, 31(Suppl.Ⅰ): 1(in Chinese)(Leitner D et al .高能物理与核物理,2007,31(Suppl.Ⅰ):1) 16. Hitz D, Girard A et al. Rev. Sci. Instrum., 2004, 75: 140317. Lyneis C M. Personal Communication18. Lyneis C M, Leitner D et al. Rev. Sci. Instr., 2006, 77:03A342

[1]	ZHAO Jie , PENG Shi-Xiang , LU Yuan-Rong , GUO Zhi-Yu . Control System of a Low-Energy High-Current Ion Beam Transport Test Bench. Chinese Physics C, 2008, 32(S1): 115-117.
[2]	M.Galloway¹ , D.Leitner¹ , C.M.Lyneis¹ , W.Cornelius² . Recent Beam Developments with the LBNL 14 GHz AECR-U Ion Source. Chinese Physics C, 2007, 31(S1): 75-79.
[3]	E.Galutschek¹ , E.Salzborn² , F.Aumayr¹ , HP.Winter¹ . Compact, Low-cost, 14.5 GHz All-permanent Magnet Field ECR Ion Source. Chinese Physics C, 2007, 31(S1): 66-69.
[4]	P.Lehérissier¹ , C.Barué¹ , C.Canet¹ , M.Dubois¹ , M.Dupuis¹ , J.L.Flambard¹ , P.A.Jaffres² , P.Jardin¹ , G.Gaubert¹ , N.Lecesne¹ , F.Lemagnen¹ , R.Leroy¹ , J.Y.Pacquet¹ . Status Report on Organo-metallic Beams at GANIL. Chinese Physics C, 2007, 31(S1): 85-89.
[5]	P.Spadtke¹ , R.Lang¹ , J.Mader¹ , J.Robbach¹ , K.Tinschert¹ , J.Stetson² . Ion Beam Extracted from a 14 GHz ECRIS of CAPRICE Type. Chinese Physics C, 2007, 31(S1): 192-195.
[6]	A.V.Vodopyanov , S.V.Golubev , I.V.Izotov , V.I.Khizhnyak , D.A.Mansfeld , V.A.Skalyga , V.G.Zorin . ECR Plasma with 75 GHz Pumping. Chinese Physics C, 2007, 31(S1): 152-155.
[7]	D.Leitner , D.S.Todd , M.L.Galloway , C.M.Lyneis . Recent 28GHz Results with VENUS. Chinese Physics C, 2007, 31(S1): 1-7.
[8]	G.D.Alton , H.Bilheux . Elementary Theory for Optimum Extraction of Space-Charge-Dominated Ion Beams from Plasma Boundaries. Chinese Physics C, 2007, 31(S1): 201-205.
[9]	ZHAO HUAN-Yu , ZHAO Hong-Wei , MA Xin-Weng , SUN Liang-Ting , ZHANG Xue-Zhen , LI Xi-Xia , WANG Hui , MA Bao-Hua , CAO Yun , FENG Yu-Cheng , ZHU Yu-Hua , SHANG Yong . Measurements of Bremsstrahlung Spectra on SECRAL. Chinese Physics C, 2007, 31(S1): 178-181.
[10]	ZHAO HUAN-Yu , ZHAO Hong-Wei , SUN Liang-Ting , ZHANG Xue-Zhen , SHENG Liu-Si , TIAN Yang-Chao , ZHANG Guo-Bin . Production of EUV Power with SECRAL. Chinese Physics C, 2007, 31(S1): 229-231.
[11]	J.W.Kwan , R.Gough , R.Keller , B.A.Ludewigt , M.Regis , R.P.Wells , J.H.Vainionpaa . A 2.45 GHz High Current Ion Source for Neutron Production. Chinese Physics C, 2007, 31(S1): 232-235.
[12]	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.
[13]	J.P.Briand . Applications of Highly Ionized Ion Beams (abstract only). Chinese Physics C, 2007, 31(S1): 236-236.
[14]	GE Ming-Qi , ZHAO Sheng-Chu , SUN Hong , GAO Jie . Design study on 1.3GHz Mono-cell High Gradient Low Loss Superconducting Cavity. Chinese Physics C, 2006, 30(4): 354-358.
[15]	HE Wei , LI Jin-Yu , ZHAO HUAN-Yu , CAO Yun , SUN Liang-Ting , ZHAO Hong-Wei , ZHANG Zi-Min . Study on High Intensity High Charge State Lead Ion Beam Production and Optimize. Chinese Physics C, 2005, 29(9): 907-911.
[16]	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.
[17]	Zhao Hongwei , Liu Zhanwen , Zhang Xuezhen , Guo Xiaohong , Gao Jiyuan , Zhang Zimin , Yuan Ping , Zhang Wen , Lei Hailiang , Cao Yun , Feng Yucheng , Li Jinyu , Wang Hui , Ma Baohua , Wang Yifang , Wei Baowen . A 14.5GHz New ECR Ion Source With High Charge State and High Magnetic Field. Chinese Physics C, 1999, 23(7): 717-722.
[18]	YU Qing-Chang . The Electron Cloud Produced by Intense Ion Beam in Penning Trap. Chinese Physics C, 1992, 16(1): 11-14.
[19]	CHEN Xin-Yi , WU Shi-Shu . 1s-0d EFFECTIVE INTERACTIONS OF ISOSPIN TRIPLET AND ¹⁸Ne-¹⁸O COULOMB DISPLACEMENT ENERGIES. Chinese Physics C, 1989, 13(1): 50-55.
[20]	Yu Qing-chang . THEORY OF NONLINEAR SPACE-CHARGE EFFECTS OF LOW ENERGY INTENSE CHARGED PARTICLE BEAMS. Chinese Physics C, 1980, 4(5): 579-587.

Access

Get Citation

ZHAO Hong-Wei, SUN Liang-Ting, GUO Xiao-Hong, ZHANG Xue-Zhen, ZHANG Zi-Min, YUANG Ping, LI Jin-Yu, FENG Yu-Cheng, HE Wei, SONG Ming-Tao, LI Xi-Xia, First Results of SECRAL at 18GHz for Intense Beam Production of Highly Charged Ions[J]. Chinese Physics C, 2007, 31(S1): 8-12.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2007-05-29
Revised: 1900-01-01

Article Metric

Article Views(4294)
PDF Downloads(994)
Cited by(0)

Policy on re-use

To reuse of subscription content published by CPC, the users need to request permission from CPC, unless the content was published under an Open Access license which automatically permits that type of reuse.

通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

First Results of SECRAL at 18GHz for Intense Beam Production of Highly Charged Ions

Corresponding author: ZHAO Hong-Wei,

Institute of Modern Physics, Chinese Academy of Sciences, Lanzhou 730000, China2 Berkeley Ion Equipment, Inc. Santa Clara, California 95054, USA

Received Date: 2007-05-29

Accepted Date: 1900-01-01

Available Online: 2007-01-03

Abstract: A Superconducting ECR ion source with Advanced design in Lanzhou (SECRAL) was successfully built to produce intense beams of highly charged ions for Heavy Ion Research Facility in Lanzhou (HIRFL). The ion source has been optimized to be operated at 28GHz for its maximum performance. The superconducting magnet confinement configuration of the ion source consists of three axial solenoid coils and six sextupole coils with a cold iron structure as field booster and clamping. For 28GHz operation, the magnet assembly can produce peak mirror fields on axis 3.6T at injection, 2.2T at extraction and a radial sextupole field of 2.0T at plasma chamber wall. A unique feature of SECRAL is that the three axial solenoid coils are located inside of the sextupole bore in order to reduce the interaction forces between the sextupole coils and the solenoid coils. During the ongoing commissioning phase at 18GHz with a stainless steel chamber, tests with various gases and some metals have been conducted with microwave power less than 3.2kW and it turned out the performance is very promising. Some record ion beam intensities have been produced, for instance, 810eμA of O⁷⁺, 505eμA of Xe²⁰⁺, 306eμA of Xe²⁷⁺, 21eμA of Xe³⁴⁺, 2.4eμA of Xe³⁸⁺ and so on. To reach better results for highly charged ion beams, further modifications such as an aluminium chamber with better cooling, higher microwave power and a movable extraction system will be done, and also emittance measurements are being prepared.

HTML

Reference (1)

First Results of SECRAL at 18GHz for Intense Beam Production of Highly Charged Ions

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article