Recent Results with the 6 GHz Flat-B ECR Ion Source at ORNL-HRIBF

Y.Liu<SUP>1</SUP>; Y.Kawai<SUP>2</SUP>; G.D.Alton<SUP>1</SUP>

Chinese Physics C> 2007, Vol. 31> Issue(S1) : 80-84

Recent Results with the 6 GHz Flat-B ECR Ion Source at ORNL-HRIBF

Oak Ridge National Laboratory, Oak Ridge, TN 37831-6368, USA2 AccSys Technology, Pleasanton, CA 94566, USA

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Abstract：
Experimental studies were conducted to characterize and improve the performance of the flat-B ECR ion source. The emittance of the source was investigated for the first time. The output beam currents of high-charge-states of Ar (q>8) were nearly doubled by increasing the plasma electrode aperture from 4mm to 6mm in diameter. To investigate possible enhancements with broadband microwave radiation, a "white" Gaussian noise generator was employed with a TWT amplifier to generate microwave radiation with a bandwidth of ～200MHz. The performance of the flat-B ECR ion source was found to be much better with narrow bandwidth radiation when the source was operated in the flat-B region. However, the ion beam intensities and charge state distributions were improved with the broadband radiation when the source was tuned {off} the flat-B region.

References

[1]

. LIU Y, Alton G D, Reed C A et al. Rev. of Sci. Intrum.,1998, 69: 13112. Alton G D, Smithe D N. Rev. Sci. Instrum., 1994, 65: 7753. LIU Y, Alton G D, Bilheux H et al. Proc. 16th International Conf. on ECR Ion Sources, ed. M. Leitner, AIP, 2005,CP749: 1914. LIU Y, Meyer F M, Cole J M. Proc. 16th International Conf. on ECR Ion Sources, ed. M. Leitner, AIP, 2005,CP749: 1875. Celona L, Gammino S, Ciavola G et al. Proc. 16th International Conf. on ECR Ion Sources, ed. M. Leitner, AIP,2005, CP749: 996. XIE Z Q, Lyneis C M. Rev. Sci. Instrum., 1995, 66: 42187. Alton G D, Meyer F M, LIU Y et al. Rev. Sci. Instrum.,1998, 69: 23058. Vondrasek R et al. 16th Int. Workshop on ECR Ion Sources, Berkeley, California, September, 2004. 319. Vondrasek R, Scott R, Pardo P et al. Proc. 16th International Conf. on ECR Ion Sources, ed. M. Leitner, AIP,2005, CP749: 3110. Alton G D, Kawai Y, LIU Y et al. Proc. 16th International Conf. on ECR Ion Sources, ed. M. Leitner, AIP, 2005,CP749: 10311. Kawai Y, Alton G D, LIU Y. Proc. 2005 Particle Accelerator Conference, 152912. The Model UFX9850 white-noise generator is a product of Noise/Com, Inc. Parsippany, NJ 0705413. Alton G D, Kawai Y, LIU Y et al. HEP NP, 2007,31(Suppl.Ⅰ): 128(in Chinese)(Alton G D, Kawai Y, LIU Y et al. 高能物理与核物理,2007,31(Suppl.Ⅰ):128)14. Hassina N. Bilheux, Ph.D. thesis, Université de Versailles Saint-Quentin-en-Yvelines, France (2003)

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[2]	CHEN Li-Hua , CUI Bao-Qun , JIANG Wei-Sheng , LI Ai-Ling . Calculation of Extraction System of Ion Sources. Chinese Physics C, 2008, 32(S1): 304-306.
[3]	P.Suominen , T , Ropponen , H.Koivisto . Modified Multipole Structure for Electron Cyclotron Resonance Ion Sources. Chinese Physics C, 2007, 31(S1): 142-146.
[4]	L.Celona¹ , F.Consoli¹ , S.Barbarino¹ , 2 , G.Ciavola¹ , S.Gammino¹ , F.Maimone³ , D.Mascali¹ , 2 , L.Tumino³ . Impact of Microwave Technology on ECRIS Performances. Chinese Physics C, 2007, 31(S1): 147-151.
[5]	G.Ciavola¹ , S.Gammino¹ , L.Celona¹ , F.Consoli¹ , G.Gallo¹ , D.Mascali¹ , S.Passarello¹ , M.Cavenago² , A.Galatà² , P.Spaedtke³ , K.Tinschert³ , R.Lang³ , H.Koivisto⁴ , P.Suomin . Status Report of the MS-ECRIS Construction. Chinese Physics C, 2007, 31(S1): 13-17.
[6]	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.
[7]	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.
[8]	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.
[9]	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.
[10]	D.Hitz . Recent Progress in High Frequency Electron Cyclotron Resonance Ion Sources. Chinese Physics C, 2007, 31(S1): 123-127.
[11]	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.
[12]	D.Leitner , D.S.Todd , M.L.Galloway , C.M.Lyneis . Recent 28GHz Results with VENUS. Chinese Physics C, 2007, 31(S1): 1-7.
[13]	D.P.May , F.P.Abegglen , G.J.Derrig , R.S.Olsen . The Texas A&M 14.5 GHz ECRIS. Chinese Physics C, 2007, 31(S1): 105-107.
[14]	SUN Zhen-Wu , HUO Yu-Ping , LI Yu-Xiao , LI Tao . Study of Extraction Property of RF Ion Source. Chinese Physics C, 2006, 30(9): 902-906.
[15]	LONG Ji-Dong , SHI Jin-Shui , YU Hai-Jun , LIN Yu-Zheng . Study On Character of Backstreaming Ions Source. Chinese Physics C, 2005, 29(5): 501-506.
[16]	YANG Yong-Feng , ZHAO Zhi-Zheng , ZHENG Zhao-Miao , ZU Kai-Ling , WANG Xu-Dong , LIU Jun-Hui , ZHAO Xiao-Yan , WANG Tong-Qing , GUO Ying-Xiang , GUO Bin , LEI Xiang-Guo , JIN Gen-Ming , LUO Yi-Xiao , SHANG Ren-Cheng , XU Si-Da , . Results of the First On-line Experiment of the Laser Ion Source. Chinese Physics C, 2002, 26(2): 134-140.
[17]	TAO XiaoPing , PENG ShiXiang . Experimental Study on a New LaMo Cathode of High Current Ion Source. Chinese Physics C, 2000, 24(8): 767-769.
[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]	MA MING-HSIU , YAO WEI , EAI KUEI-PEING . A NEW TYPE OF RADIOFREQUENCY METAL ION SOURCE. Chinese Physics C, 1978, 2(6): 544-549.

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Y.Liu¹, Y.Kawai² and G.D.Alton¹. Recent Results with the 6 GHz Flat-B ECR Ion Source at ORNL-HRIBF[J]. Chinese Physics C, 2007, 31(S1): 80-84.

Y.Liu¹, Y.Kawai² and G.D.Alton¹. Recent Results with the 6 GHz Flat-B ECR Ion Source at ORNL-HRIBF[J]. Chinese Physics C, 2007, 31(S1): 80-84. shu

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

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通讯作者: 陈斌, bchen63@163.com

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沈阳化工大学材料科学与工程学院沈阳 110142

Recent Results with the 6 GHz Flat-B ECR Ion Source at ORNL-HRIBF

Oak Ridge National Laboratory, Oak Ridge, TN 37831-6368, USA2 AccSys Technology, Pleasanton, CA 94566, USA

Received Date: 2007-05-30

Accepted Date: 1900-01-01

Available Online: 2007-01-03

Abstract: Experimental studies were conducted to characterize and improve the performance of the flat-B ECR ion source. The emittance of the source was investigated for the first time. The output beam currents of high-charge-states of Ar (q>8) were nearly doubled by increasing the plasma electrode aperture from 4mm to 6mm in diameter. To investigate possible enhancements with broadband microwave radiation, a "white" Gaussian noise generator was employed with a TWT amplifier to generate microwave radiation with a bandwidth of ～200MHz. The performance of the flat-B ECR ion source was found to be much better with narrow bandwidth radiation when the source was operated in the flat-B region. However, the ion beam intensities and charge state distributions were improved with the broadband radiation when the source was tuned {off} the flat-B region.

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Recent Results with the 6 GHz Flat-B ECR Ion Source at ORNL-HRIBF

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