Recent Beam Developments with the LBNL 14 GHz AECR-U Ion Source

M.Galloway<SUP>1</SUP>; D.Leitner<SUP>1</SUP>; C.M.Lyneis<SUP>1</SUP>; W.Cornelius<SUP>2</SUP>

近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。

本刊再次郑重声明：

（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137

（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。

（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。

《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2007, Vol. 31> Issue(S1) : 75-79

Recent Beam Developments with the LBNL 14 GHz AECR-U Ion Source

Lawrence Berkeley National Laboratory, Berkeley, CA, 94705, USA2 Scientific Solutions Inc., San Diego, CA, USA

Abstract
HTML
Reference
Related

PDF

Abstract：
A radial sputter probe has been developed for the AECR-U as an additional method of producing metal ion beams. Negative voltage is applied to the probe to incite collisions with target atoms, thereby sputtering material into the plasma. The sputter probe is positioned through one of the 6 radial access slots between the permanent hexapole structure of the AECR-U. The probe position can be varied with respect to the inner edge of the hexapole magnet structure. Charge state distributions and peak beam intensities at bias voltages up to －5kV were obtained for gold samples at varying distances of the probe with respect to the plasma. For high charge states production the radial position with respect to the plasma was more sensitive than for the medium and lower charge states. For high charge state ion production the probe was optimized at a distance of 0.6cm inside the chamber wall (4.1cm from the center of the chamber). Stable beams with peak intensities of up to 28eμA of Au²⁴⁺ and 1.42eμA of Au⁴¹⁺ have been produced using the sputter probe technique.
In addition, a solid state circuit under development by Scientific Solutions, Inc which provides a bandwidth up to 100MHz was used to drive the 14GHz klystron amplifier for the LBNL AECR-U ion source. Various broadband and discrete heating modes were tested and the results for high charge state ion production were compared with single frequency heating.

[1]	SUN Bao-Gen , LUO Qing , WANG Xiao-Hui . Recent Developments of Beam Diagnostics. Chinese Physics C, 2008, 32(S1): 145-147.
[2]	HAO Jian-Kui , ZHAO Kui . Recent Progress on RF Superconductivity and ERL. Chinese Physics C, 2008, 32(S1): 200-203.
[3]	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.
[4]	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.
[5]	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.
[6]	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.
[7]	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.
[8]	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.
[9]	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.
[10]	Y.Liu¹ , Y.Kawai² , G.D.Alton¹ . Recent Results with the 6 GHz Flat-B ECR Ion Source at ORNL-HRIBF. Chinese Physics C, 2007, 31(S1): 80-84.
[11]	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.
[12]	M.Marie-Jeanne¹ , 2 , 3 , P.Delahaye¹ . Recent Developments on the Phoenix ECR Booster at ISOLDE, CERN. Chinese Physics C, 2007, 31(S1): 216-218.
[13]	H.R.Kremers , J.P.M.Beijers , S.Brandenburg , J.Mulder . A Status Report of the KVI-AECR. Chinese Physics C, 2007, 31(S1): 90-93.
[14]	D.Leitner , D.S.Todd , M.L.Galloway , C.M.Lyneis . Recent 28GHz Results with VENUS. Chinese Physics C, 2007, 31(S1): 1-7.
[15]	D.Hitz . Recent Progress in High Frequency Electron Cyclotron Resonance Ion Sources. Chinese Physics C, 2007, 31(S1): 123-127.
[16]	XIE Ya-Ning , LUO Jun , TAO Ye , ZHANG Jing , HU Tian-Dou . New Development of XAFS Experimental Methods at BSRF. Chinese Physics C, 2001, 25(S1): 7-11.
[17]	Peng Hongan , Xu Jiasheng . New Progresses in Deep Inelastic Scattering in Small x Region. Chinese Physics C, 1999, 23(2): 142-150.
[18]	Liu Lianshou . New Progress in the Study of High Energy Non-Linear Phenomena. Chinese Physics C, 1999, 23(2): 165-175.
[19]	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.
[20]	Luo Xiangqian . Recent Advances in Lattice QCD. Chinese Physics C, 1999, 23(2): 188-194.

Access

Get Citation

M.Galloway¹, D.Leitner¹, C.M.Lyneis¹ and W.Cornelius². Recent Beam Developments with the LBNL 14 GHz AECR-U Ion Source[J]. Chinese Physics C, 2007, 31(S1): 75-79.

M.Galloway¹, D.Leitner¹, C.M.Lyneis¹ and W.Cornelius². Recent Beam Developments with the LBNL 14 GHz AECR-U Ion Source[J]. Chinese Physics C, 2007, 31(S1): 75-79. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

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

Article Metric

Article Views(3790)
PDF Downloads(711)
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

Recent Beam Developments with the LBNL 14 GHz AECR-U Ion Source

Lawrence Berkeley National Laboratory, Berkeley, CA, 94705, USA2 Scientific Solutions Inc., San Diego, CA, USA

Received Date: 2007-05-30
Accepted Date: 1900-01-01
Available Online: 2007-01-03

Abstract: A radial sputter probe has been developed for the AECR-U as an additional method of producing metal ion beams. Negative voltage is applied to the probe to incite collisions with target atoms, thereby sputtering material into the plasma. The sputter probe is positioned through one of the 6 radial access slots between the permanent hexapole structure of the AECR-U. The probe position can be varied with respect to the inner edge of the hexapole magnet structure. Charge state distributions and peak beam intensities at bias voltages up to －5kV were obtained for gold samples at varying distances of the probe with respect to the plasma. For high charge states production the radial position with respect to the plasma was more sensitive than for the medium and lower charge states. For high charge state ion production the probe was optimized at a distance of 0.6cm inside the chamber wall (4.1cm from the center of the chamber). Stable beams with peak intensities of up to 28eμA of Au²⁴⁺ and 1.42eμA of Au⁴¹⁺ have been produced using the sputter probe technique.
In addition, a solid state circuit under development by Scientific Solutions, Inc which provides a bandwidth up to 100MHz was used to drive the 14GHz klystron amplifier for the LBNL AECR-U ion source. Various broadband and discrete heating modes were tested and the results for high charge state ion production were compared with single frequency heating.