Research on Depolarization of Transversely Polarized Gas Target Induced by High Energy e-Beam

WANG Si-Guang; ZHOU Shu-Hua; YE Yun-Xiu; YE Zhen-Yu; MAO Ya-Jun

Chinese Physics C> 2006, Vol. 30> Issue(9) : 892-895

Research on Depolarization of Transversely Polarized Gas Target Induced by High Energy e-Beam

School of Physics, Peking University, Beijing 100871, China2 China Institute of Atomic Energy, Beijing 102413, China3 University of Science and Technology of China, Hefei 230026, China4 Department of Physics, University of Illinois, Urbana, Illinois 61801, USA5 Desy, Deutsches Elektronen-Synchrotron, 22603 Hamburg, Germany6 Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara and Dipartimento di Fisica, Universit\`{a} di Ferrara, 44100 Ferrara, Italy7 Physikalisches Institut, Universit\

Abstract
HTML
Reference
Related

PDF

Abstract：
High frequency electromagnetic fields induced by high-energy e-beam can cause resonance depolarization of the HERMES transversely polarized gas target. This paper presents the research results on the mechanism of depolarization and the position where resonance σ₂₄ takes place. About 3% depolarization has been saved after avoiding such resonance by fixing the magnet field far from resonance position according to the measured results.

References

[1]

. Baumgarten C, Braun B, Contalbrigo M et al. Nucl. Instrum.Methods, 2003, A508: 268-2752. Nass A, Baumgarten C, Braun B et al. Nucl. Instrum.Methods, 2003, A505: 633-6443. Baumgarten C, Braun B, Carassiti V et al. Nucl. Instrum.Methods, 2003, A496: 227-2854. Baumgarten C, Braun B, Court G et al. Nucl. Instrum.Methods, 2003, A496: 263-2765. Reggiani D, Ph D Thesis. Università degli Studi di Ferrara,Italy, 2000-20026. WANG Si-Guang, Bouwhuis M, Holler Y et al. NuclearTechniques, 2005, 28(4): 297-300(in Chinese)(王思广，Bouwhuis M, Holler Y等，核技术，2005, 28(4):297-300)

[1]	MIAO Xi-Xi , LIU Lie . Preliminary Research of the Propagation of Annular IREBS in Coaxial Permanent Magnet Halbach Circuit. Chinese Physics C, 2008, 32(S1): 313-316.
[2]	XU Hong-Liang , SUN Bao-Gen , ZHANG Jian-Feng , XU Bing , HUANG Gui-Rong . Prophase Study of Electron Beam Energy Calibration for HLS. Chinese Physics C, 2008, 32(S1): 136-138.
[3]	JIANG Xiao-Guo , LI Cheng-Gang , WANG Yuan , DAI Wen-Hua , XIA Lian-Sheng , CHEN Nan , YANG Guo-Jun . Accurate Burst Trigger Mode for Dragon-Ⅰ Electron Beam Measurement System. Chinese Physics C, 2006, 30(8): 784-787.
[4]	DAI Jian-Ping . Adjustment of Energy of BFEL Linac. Chinese Physics C, 2006, 30(S1): 93-95.
[5]	LIU Yu-Dong , GUO Zhi-Yuan , Qin Qing , WANG Jiu-Qing , ZHAO Zheng . Transverse Blowup along Bunch Train Caused by Electron Cloud in BEPC. Chinese Physics C, 2006, 30(3): 260-263.
[6]	SHI Jiang-Jun , LIU Jun , LIU Jin , LI Bi-Yong . Beam Parameter Requrements for Radiography. Chinese Physics C, 2006, 30(S1): 31-33.
[7]	JIANG Xiao-Guo , YANG Guo-Jun , ZHANG Kai-Zhi , SHI Jin-Shui , DENG Jian-Jun , WANG Yuan , LI Cheng-Gang . Time-Resolved Measurement System Using Optical Transition Radiation for Electron Beam of High Energy and High Current. Chinese Physics C, 2005, 29(11): 1095-1099.
[8]	HUA Jian-Fei , HUO Yu-Kun , CAO Na , LIN Yu-Zheng . Output Characteristics of Electron Bunch Accelerated by Laser Pulse. Chinese Physics C, 2004, 28(3): 308-312.
[9]	JIN Da-Peng , LU Feng , GUO Ya-Nan , WANG Yi-Fang , WU Ling-Hui , LIU Zhen-An , YU Zhong-Qiang . Monte Carlo Simulation of the BEPCⅡ/BESⅢ Backgrounds—Beam-Gas Interactions. Chinese Physics C, 2004, 28(11): 1197-1202.
[10]	LONG Ji-Dong , LIN Yu-Zheng , LUO Fei , GU Zhuo-Wei , SHI Jin-Shui . Destruction Study of Tantalum Target Impacted by 12MeV Electron Beam. Chinese Physics C, 2004, 28(5): 564-568.
[11]	ZHANG Yong-Hui , CHEN Hong-Bin , KANG Qiang , CAO Shao-Yun , CHANG An-Bi . Development of Repetition Frequency Electron-Beam Generator Technology. Chinese Physics C, 2002, 26(8): 876-881.
[12]	Dong Yubing . Polarized Structure Functions in the Resoance Region andHigher-Twist Effects. Chinese Physics C, 1998, 22(8): 713-717.
[13]	Geng Rongli , Song Jinhu , Yu Jin . Studies on a Laser Driven Photoemissive High-Brightness Electron Source and Novel Photocathodes. Chinese Physics C, 1997, 21(1): 67-74.
[14]	Ye Yunxiu , Su Shufang , Zhou Xin , Zhu Guohuai , Ji Gang . The Correlation Between the Transverse Polarization andTransverse Momentum of Lambda Produced in RelativisticNucleus-Nucleus Collisions. Chinese Physics C, 1996, 20(8): 685-690.
[15]	Rao Yinong , Xia Jiawen , Yuan Youjin , Wei Baowen . Electron Beam Transverse Temperatures on Hirfl-CSR E-Cooler. Chinese Physics C, 1996, 20(4): 369-375.
[16]	Xu Jianming . Matching Problem of Lattice with Transverse Coupling. Chinese Physics C, 1995, 19(1): 73-81.
[17]	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.
[18]	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.
[19]	MAO Zhen-Lin . RADIATIVE CORRECTIONS TO THE DEEP INEIASTIC POLARIZED E-P SCATTERING. Chinese Physics C, 1984, 8(1): 1-9.
[20]	ZHANG XI-ZHEN . SPIN GAINT RESONANCE AND CORE POLARIZATION EFFECTS. Chinese Physics C, 1979, 3(5): 639-644.

Access

Get Citation

WANG Si-Guang, ZHOU Shu-Hua, YE Yun-Xiu, YE Zhen-Yu and MAO Ya-Jun. Research on Depolarization of Transversely Polarized Gas Target Induced by High Energy e-Beam[J]. Chinese Physics C, 2006, 30(9): 892-895.

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2005-12-06
Revised: 2006-02-06

Article Metric

Article Views(4755)
PDF Downloads(661)
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

Research on Depolarization of Transversely Polarized Gas Target Induced by High Energy e-Beam

Corresponding author: MAO Ya-Jun,

School of Physics, Peking University, Beijing 100871, China2 China Institute of Atomic Energy, Beijing 102413, China3 University of Science and Technology of China, Hefei 230026, China4 Department of Physics, University of Illinois, Urbana, Illinois 61801, USA5 Desy, Deutsches Elektronen-Synchrotron, 22603 Hamburg, Germany6 Istituto Nazionale di Fisica Nucleare, Sezione di Ferrara and Dipartimento di Fisica, Universit\`{a} di Ferrara, 44100 Ferrara, Italy7 Physikalisches Institut, Universit\

Received Date: 2005-12-06
Accepted Date: 2006-02-06
Available Online: 2006-09-05

Abstract: High frequency electromagnetic fields induced by high-energy e-beam can cause resonance depolarization of the HERMES transversely polarized gas target. This paper presents the research results on the mechanism of depolarization and the position where resonance σ₂₄ takes place. About 3% depolarization has been saved after avoiding such resonance by fixing the magnet field far from resonance position according to the measured results.