Design of the Magnetic Field System for Beijing Intense Slow Positron Beam Transportation

CAO Xing-Zhong; WANG Bao-Yi; YU Run-Sheng; WEI Cun-Feng; XUE De-Sheng; WEI Long

Chinese Physics C> 2004, Vol. 28> Issue(5) : 560-563

Design of the Magnetic Field System for Beijing Intense Slow Positron Beam Transportation

Key Laboratory for Magnetism and Magnetic Material of Ministry of Education,Lanzhou University, Lanzhou 730000,China2 Key Laboratory of Nuclear Analysis Techniques,Institute of High Energy Physics,CAS,Beijing 100039,China

Abstract
HTML
Reference
Related

PDF

Abstract：
A slow positron beam with intensity of 106e+/s produced by the Beijing Electron-Positron Collider (BEPC) is transported by the 100 Gauss magnetic field system with the oscillation less than 10. In this paper, the distributions of magnetic field at target chamber, sample chamber and Penning-Trap storage are calculated systematically, and the parameters of solenoidal coils and steering coils are calculated respectively. The correction coils are designed to compensate the affect induced by the geomagnetic field and the bent tube. Results of electron beam experiment show that the positron beams are transported to sample chamber with the beam spot size basically unchanged, and the magnetic field distributions satisfy to the requirement of the slow positron beam system.

References

[1]

. Shultz J, Lynn K G. Rev. Mod. Phys. , 1988, 60: 7012. Ley R. Mat erials Science Forum. , 1992, 1927: 105 .. 1103. Yoshida K et al. Phys. Rev. Lett . , 1998, 80( 7) : 14374. Hulett L D et al. Nucl. Instr. andMeth. , 1987, B24..25: 9055. Akahane T, Chiba T, Shiot ani N et al . Appl. Phys. , 1990, A51: 1466. YU R S et al . HEP NP, 2001, 25: 135(in Chinese)(于润升等.高能物理与核物理,2001,25:135)7. YU R S et al . Nucl. Tech. , 2000, 23( 6) : 405(in Chinese)(于润升等.核技术,2000,23(6):405)8. YU Run-Sheng et al. Nucl. Instr. and Meth. , 2001, A457: 4199. YU R S et al . Nucl. Tech. , 2000, 23( 6) : 401(in Chinese)(于润升等.核技术,2000,23(6):401)

[1]	PEI Guo-Xi , SUN Yao-Lin , LIU Jin-Tong , CHI Yun-Long , LIU Yu-Cheng , LIU Nian-Zong . BEPCⅡ Positron Source. Chinese Physics C, 2006, 30(1): 66-70.
[2]	WANG Ping , CAO Xing-Zhong , MA Yan-Yun , QIN Xiu-Bo , WANG Bao-Yi , MA Chuang-Xin , WEI Long . Design and Construction of the Plugged-in ²²Na Based Slow Positron Beam Facility. Chinese Physics C, 2006, 30(10): 1036-1040.
[3]	WEI Cun-Feng , WANG Bao-Yi , WANG Ping , CAO Xing-Zhong , ZHANG Zhi-Ming , MA Yan-Yun , XUE De-Sheng , WEI Long . A Device Used in Pulsed Slow Positron Beam's Stretching. Chinese Physics C, 2006, 30(10): 1010-1013.
[4]	CAO Xing-Zhong , WANG Bao-Yi , WANG Ping , MA Yan-Yun , QIN Xiu-Bo , WEI Long . Performance of Beijing Intense Slow Positron Beam. Chinese Physics C, 2006, 30(12): 1196-1199.
[5]	MA Yan-Yun , PEI Shi-Lun , CAO Xing-Zhong , WANG Ping , WEI Cun-Feng , MA Chuang-Xing , ZHANG Zhi-Ming , WANG Shu-Hong , WANG Bao-Yi , WEI Long . Design of a Pulsed Low Energy Positron System Based on Beijing Intense Slow Positron Beam. Chinese Physics C, 2006, 30(2): 166-170.
[6]	WANG Shu-Hong , JIN Kai , ZHOU Feng . TESLA TW Positron Injector Linac and Beam Modeling. Chinese Physics C, 2005, 29(5): 495-500.
[7]	KONG Wei , XI Chuan-Ying , YE Bang-Jiao , WENG Hui-Min , ZHOU Xian-Yi , HAN Rong-Dian . Two-Detector Doppler Broadening of Annihilation Radiation in Metals. Chinese Physics C, 2004, 28(11): 1234-1237.
[8]	ZHOU Chun-Lan , WANG Dan-Ni , HE Chuang-Xin , WANG Bao-Yi , WEI Long , HE Qing , JIA Quan-Jie . Study on Pores and Defect by Synthrotron Radiation Small Angle Reflection Method and Slow Positron Annihilation Technique. Chinese Physics C, 2003, 27(S1): 67-71.
[9]	WANG Shu-Hong , WANG Jiu-Qing , YE Qiang , LE Qi . Minimization of Primary Electron Beam Radius at the Positron Production Target. Chinese Physics C, 2002, 26(12): 1302-1308.
[10]	GOU Wei-Ping , PEI Guo-Xi . Design of BEPCⅡ Positron Source. Chinese Physics C, 2002, 26(3): 279-285.
[11]	YU Run-Sheng , WANG Bao-Yi , MA Chuang-Xin , CAO Xing-Zhong , PEI Guo-Xi , WEI Long , YE Ming-Han . Computer Simulation for the Real-Sized Electron-Positron Converter on BEPC-LINAC Based Slow Positron Beam. Chinese Physics C, 2001, 25(S1): 135-139.
[12]	Ju Xin , Peng Liangqiang , Deng Bin , Weng Huimin , Han Rongdian . Study on Lithium Fluoride Cluster-Based Nanophase Films by Low Energy Positron Beam. Chinese Physics C, 1997, 21(9): 844-850.
[13]	HAN Rong-Dian , WENG Hui-Min , ZHOU Xian-Yi , XU Ji-Hua , ZHU Jing-Sheng , LI Xiao-Guang , SHA Jian , WANG Jing-Cheng . Research for Crystallization of Metallic Glass Pd_79.5Ni₄Si_16.5 by Slow Positron Beam. Chinese Physics C, 1993, 17(4): 300-304.
[14]	WENG Hu-Min , ZHOU Xian-Yi , XU Ji-Hua , SUN Shi-Jun , ZHU Jing-Sheng , WU Shu-Lan , HAN Rong-Dian . Microstructure of A1/GaAs Interface Studied by Slow Positron Beam. Chinese Physics C, 1993, 17(9): 775-783.
[15]	WU Ji-Min . Electron,Positron Distribution Function. Chinese Physics C, 1992, 16(6): 518-526.
[16]	GUO Xue-Zhe , WENG Hui-Min , HAN Rong-Dian . The Observation of Positron Surface State of Germanium. Chinese Physics C, 1992, 16(11): 961-964.
[17]	PEI Guo-Xi , XIE Jia-Lin , ZHOU Shu , SUN Song-Lan . OPTIMIZATION OF BEPC POSITRON SOURCE. Chinese Physics C, 1990, 14(2): 110-117.
[18]	WEI Kai-Yu , LIN Zhen-Hua , LÜ Ji-Hua , WANG Shu-Hong , LUO Zi-Hua , SUN Song-Lan , ZHU Ren-Quan . DESIGN AND BEAM TEST FOR THE BPL 35.5MeV BEAM TRANSPORT SYSTEM. Chinese Physics C, 1987, 11(4): 571-576.
[19]	WEI Kai-Yu , LIN Zhen-Hua . THE DESIGN AND STUDY OF SPACE CHARGE EFFECT FOR THE BPL 750keV BEAM TRANSPORT SYSTEM. Chinese Physics C, 1984, 8(5): 588-595.
[20]	Wei Kai-yu , Lin Zhen-hua . A COMPUTATIONAL METHOD FOR THE DESIGN ENERGY HIGH INTENSITY BEAM TRANSPORT SYSTEMS. Chinese Physics C, 1980, 4(5): 555-562.

Access

Get Citation

CAO Xing-Zhong, WANG Bao-Yi, YU Run-Sheng, WEI Cun-Feng, XUE De-Sheng and WEI Long. Design of the Magnetic Field System for Beijing Intense Slow Positron Beam Transportation[J]. Chinese Physics C, 2004, 28(5): 560-563.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2003-09-08
Revised: 1900-01-01

Article Metric

Article Views(2822)
PDF Downloads(540)
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

Design of the Magnetic Field System for Beijing Intense Slow Positron Beam Transportation

Corresponding author: WEI Long,

Key Laboratory for Magnetism and Magnetic Material of Ministry of Education,Lanzhou University, Lanzhou 730000,China2 Key Laboratory of Nuclear Analysis Techniques,Institute of High Energy Physics,CAS,Beijing 100039,China

Received Date: 2003-09-08

Accepted Date: 1900-01-01

Available Online: 2004-05-05

Abstract: A slow positron beam with intensity of 106e+/s produced by the Beijing Electron-Positron Collider (BEPC) is transported by the 100 Gauss magnetic field system with the oscillation less than 10. In this paper, the distributions of magnetic field at target chamber, sample chamber and Penning-Trap storage are calculated systematically, and the parameters of solenoidal coils and steering coils are calculated respectively. The correction coils are designed to compensate the affect induced by the geomagnetic field and the bent tube. Results of electron beam experiment show that the positron beams are transported to sample chamber with the beam spot size basically unchanged, and the magnetic field distributions satisfy to the requirement of the slow positron beam system.

HTML

Reference (1)

Design of the Magnetic Field System for Beijing Intense Slow Positron Beam Transportation

Abstract：

References

Access

Article Metrics

Metrics

通讯作者: 陈斌, bchen63@163.com

Email This Article