Chinese Physics C > 2000, Vol. 24 > Issue(12): 1179-1184

Adiabatic Expansion of Electron Beam

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Abstract
HTML
Reference
Related

PDF

Abstract：
The temperature of electron beam is an important parameter in electron cooling device. Transverse temperature will be reduced When an electron beam passes through a negative gradient magnetic field. Some theoretical approaches on adiabatic expansion are presented here. Adiabatic expansion of the electron beam moving in different magnetic fields with different energy and current was investigated by computer simulation. The results show that the transverse temperature of the electron beam is reduced by a factor equal to the ratio between the initial and final magnetic field strengths, provided that the field change is adiabatic with respect to the cyclotron motion of the electrons.

References

[1]

Bosser J. Electron Cooling. In: Turner S. CERN95 – 06, Vol. 2. Geneva: CERN, 1995 , 673–7302 RAO YiNong et al. High Energy Phys. and Nucl. Phys. (in Chinese), 1996,20(4): 369–375(饶亦农等.高能物理与核物理,1996,20(4):369–375) 3 Meshkov I N. Physics and Technique of Electron Cooling. Tokyo: RIKEN–AF–AC–2, 1997 4 Danared H. Electron Cooling with an Electron Beam of 10 meV Transverse Temperature. In: Bosser J. Proceedings of Workshop on Beam Cooling and Related Topics. Geneva: CERN(94–03 ), 1994, 322–3265 Jackson J D. Classical Electrodynamics. Beijing:High Education Press (in Chinese), 1983(杰克逊J D.经典电动力学.北京:高等教育出版社,1983)6 Born M. The Mechanics of the Atom,Bell London, 1927 7 Bosser. J. Some Issues of the Electron Beam Neutralization and of the Magnetic Expansion on the Transverse Velocity.Geneva: CERN PS/AR/Note 96–20, 1996

[1]	TANG Hua-Ping,TANG Chuan-Xiang,LIU Yao-Hong,ZHANG Hua-Yi,CHEN Huai-Bi. Design of Miniature and Self-Shielding Electron-Beam Radiation Processing System. Chinese Physics C, 2008, 32(S1): 250-252.
[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]	WANG Si-Guang,ZHOU Shu-Hua,YE Yun-Xiu,YE Zhen-Yu,MAO Ya-Jun. Research on Depolarization of Transversely Polarized Gas Target Induced by High Energy e-Beam. Chinese Physics C, 2006, 30(9): 892-895.
[4]	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.
[5]	Mao Li-Jun,YANG Xiao-Dong,XIA Jia-Wen,WEI Bao-Wen. Electron Beam Longitudinal Temperatures Of Electron Cooler On CSR. Chinese Physics C, 2006, 30(S1): 54-56.
[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]	XIANA Dao,HUANG Wen-Hui. Diffraction Radiation and Its Applications in Electron Beam Diagnostics. Chinese Physics C, 2006, 30(S1): 75-77.
[8]	DAI Jian-Ping. Adjustment of Energy of BFEL Linac. Chinese Physics C, 2006, 30(S1): 93-95.
[9]	YANG Guo-Jun,ZHANG Zhuo,CHEN Si-Fu,LIU Cheng-Jun,LIN Yu-Zheng. Research of Transition Radiation on Intense Electron Beam Diagnostics. Chinese Physics C, 2005, 29(3): 305-311.
[10]	YIN Ming,ZHOU Xiao-Yan. Studies on Wehnelt of Electron-Beam Accelerator. Chinese Physics C, 2005, 29(3): 301-304.
[11]	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.
[12]	YIN Ming,SUN Xiao-Jun. Studies on Cockcroft-Walton Accelerator for Narrow E-Beam Lithography. Chinese Physics C, 2004, 28(3): 304-307.
[13]	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.
[14]	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.
[15]	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.
[16]	PAN Wei-Min,LI Zhong-Quan,XIE Xi. Effects of the Relativistic Electron Beam on the Phase Velocity of RF Field in Accelerator. Chinese Physics C, 2001, 25(10): 1022-1028.
[17]	WANG ShuiQing. Calculation of the Electron Trajectory for 200kV Self-shielded Electron Accelerator. Chinese Physics C, 2000, 24(6): 573-577.
[18]	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.
[19]	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.
[20]	Tan Lun-chang. THE USE OF HIGH-ENERGY ELECTRON BEAMS IN A MAGNETIC FIELD FOR RADIATION THERAPY. Chinese Physics C, 1980, 4(1): 128-132.

Access

Get Citation

YANG XiaoDong, SONG MingTao, XIA JiaWen, WEI BaoWen and WU JunLi. Adiabatic Expansion of Electron Beam[J]. Chinese Physics C, 2000, 24(12): 1179-1184.

YANG XiaoDong, SONG MingTao, XIA JiaWen, WEI BaoWen and WU JunLi. Adiabatic Expansion of Electron Beam[J]. Chinese Physics C, 2000, 24(12): 1179-1184. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1999-08-11
Revised: 1900-01-01

Article Metric

Article Views(4050)
PDF Downloads(675)
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

Adiabatic Expansion of Electron Beam

Corresponding author:YANG XiaoDong,

Institute of Modern Physics, The Chinese Academy of Sciences, Lanzhou 730000, China

Received Date:1999-08-11
Accepted Date:1900-01-01
Available Online:2000-12-05

Abstract:The temperature of electron beam is an important parameter in electron cooling device. Transverse temperature will be reduced When an electron beam passes through a negative gradient magnetic field. Some theoretical approaches on adiabatic expansion are presented here. Adiabatic expansion of the electron beam moving in different magnetic fields with different energy and current was investigated by computer simulation. The results show that the transverse temperature of the electron beam is reduced by a factor equal to the ratio between the initial and final magnetic field strengths, provided that the field change is adiabatic with respect to the cyclotron motion of the electrons.