Chinese Physics C > 1999, Vol. 23 > Issue(12): 1231-1242

Nonlinear Space Charge Effects and Emittance Growth in Linac

Chen Yinbao^,,
Huang Zhibin

China Institute of Atomic Energy, Beokomg 102413

Abstract
HTML
Reference
Related

PDF

Abstract：
The nonlinear space charge effect of bunched beam in linac is one of the important reasons that induce the emittance growth. The general formulas for calculating the potential of space charge with nonuniform distribuhon in surrounding structure are presented. For a bunched beam with different distribuhon in waveguide of linac, the expresses of the nonlinear field energy of a cylinder model of space charge are derived, and the numerical results of the nonlinear field energy for different density distributions are given. The emittance growthes caused by these nonuniformities are discussed.

References

[1]

Lapostolle M. IEEE Trans. Nucl. Sci., 1971, 18: 1101–11032 Sacherer F. IEEE Trans. Nucl. Sci., 1971, 18: 1105–1107 3 Struckmeier J, klabunde J, Reiser M. Part. Acc., 1984, 15:47–654 Wangler T P, Crandall K R. Mills R S et al. IEEE Trans. Nucl. Sci., 1985, 32:2196–2198 5 Hofmann I, Struckmeier J. Part. Acc., 1987, 21:69–986 Wangler T P, Lapostolle P, Lombardi A. Space–Charge–Induced Emittance Growth in An Elliptical Beamwith A Parabolic Density Distribution. In: Corneliussen S T ed. Conference Record of the IEEE 1993Particle Accelerator Conference, 93CH3279–7, Vo1.5. NJ: Institute of Electrical and Electronics Engineers,Inc., IEEE Service Center, 1993, 3606–36087 Reiser M. Theory and Design of Charged Particle Beams. New York: John Wiley Sons, Inc., 1994. 467–5638 Chen Yinbao, Xie Xi. Chin. J. Nucl. Phys.(in Chinese), 1979,1: 107–128 (陈银宝,谢羲.原子核物理,1979,1:107–128) 9 Hechtel J. IEEE Trans. on Electron Devices, 1970, 15:999–1009 10 Chen Yinbao. Nonlinear Space Charge Effects of Bunched Beam in Linac. Beijing: Atomic Energy Press,1992. 1–15 11 Chen Yinbao, Fu Sinian, Huang Zhibin et al. Chin. J. Nucl. Phys., 1995, 17(1):81–88 12 Chen Yinbao, Fu Sinian, Huang Zhibin et al. Chin. J. Nucl. Phys., 1995, 17(2):174–178

[1]	AN Shi-Zhong,TANG Jing-Yu,. Emittance Dominated Long Bunches in Dual Harmonic RF Systems. Chinese Physics C, 2008, 32(1): 60-66.doi:10.1088/1674-1137/32/1/014
[2]	LIU Wei-Bin,WANG Shu-Hong,YE Qiang,WANG Lin. Emittance Measurement at BEPCⅡ Linac. Chinese Physics C, 2008, 32(S1): 86-88.
[3]	WANG Shu-Hong,PEI Guo-Xi,LIU Wei-Bin,CHEN Yan-Wei,YE Qiang,GENG Zhe-Qiao. Studies on the Beam Orbit and Energy Instabilities at the BEPCⅡ Linac. Chinese Physics C, 2007, 31(11): 1067-1070.
[4]	ZHAO Feng-Li,HOU Mi,ZHAO Yan-Ping,LIU Jin-Tong,ZHANG Jing-Ru,ZHOU Yao-Xiang,HAN Da-Wei. Microwave System for BEPCⅡ-Linac. Chinese Physics C, 2006, 30(2): 155-158.
[5]	PEI Shi-Lun,WANG Shu-Hong. Transient Beam Loading Effects on Standing Wave Cavities in Linear Accelerators. Chinese Physics C, 2006, 30(5): 454-461.
[6]	DAI Zhi-Yong,GUO Zhi-Yuan,ZHANG Lin-Wen. Mechanism and Control Methods of Emittance Growth for LIA Injector. Chinese Physics C, 2004, 28(9): 1002-1006.
[7]	YU Qing-Chang. Study on Design of Proton Linacs. Chinese Physics C, 2001, 25(5): 429-436.
[8]	OUYANG Hua-Fu. Effects of the Space Charge Forces and the Beam Halo in an AVF Cyclotron with Intense Beam Currents. Chinese Physics C, 2001, 25(6): 561-570.
[9]	OUYANG Hua-Fu. Effects of the Space Charge Forces and the Beam Halo in a Cyclotron. Chinese Physics C, 2001, 25(7): 674-679.
[10]	XU JianMing. Nonlinear Effect in the Circular Mass Spectrometer. Chinese Physics C, 2000, 24(7): 667-675.
[11]	Chen Yinbao,Huang Zhibin,FuShinian. Scaling Law of Emittance Growth for Bunched Beam with Gaussian Density Distribution in Both Longitudinal and Transverse Directions in Linac. Chinese Physics C, 1997, 21(7): 657-663.
[12]	Zhuang Pengfei,Liu Lianshou. Linear Background and Nonlinear Effect in Relativistic Heavy Ion Collisions. Chinese Physics C, 1994, 18(2): 143-147.
[13]	WANG Shu-Hong,ZHOU Qing-Yi,WAN Heng-Fang,ZHANG Hua-Shun,XIAO Lian-Rong,XUE Jing-Xuan,JIN Qing-Shou,ZHANG Cheng-Xian,LUO Zi-Hua,KE Xue-Yao,LIU Dian-Kui,HE Wei-Ning. The Performance Improvement and Its Application of Beijing Proton Linac. Chinese Physics C, 1991, 15(8): 680-688.
[14]	LUO Ying-Xiong,WU Wen-Tai. ON THE EQUATION OF TRANSVERSE MOTION IN ELECTRON LINAC. Chinese Physics C, 1985, 9(1): 116-119.
[15]	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.
[16]	XU Jian-Ming,LIU Shi-Yao. A PROPOSAL FOR THE MEASUREMENT OF THE REAL EMITTANCE OF THE BEAM IN CYCLIC ACCELERATORS. Chinese Physics C, 1983, 7(2): 178-185.
[17]	QIU Hong,CHEN Jian-Pu,XU Jian-Ming. STUDIES OF THE FOCUSING PROPERTIES OF A SPACE CHARGE LENS. Chinese Physics C, 1983, 7(5): 583-588.
[18]	WEI Kai-Yu. INCREASE OF BEAM PROJECTIVE EMITTANCE IN SYSTEM WITH DISPERSION. Chinese Physics C, 1983, 7(5): 589-597.
[19]	FANG SHOU-XIAN. COMPENSATION OF THE SPACE CHARGE FORCE IN A SYNCHROTRON BY MEANS OF RF QUADRUPOLE. Chinese Physics C, 1981, 5(2): 169-175.
[20]	Yu Qing-chang. THEORY OF NONLINEAR SPACE-CHARGE EFFECTS OF LOW ENERGY INTENSE CHARGED PARTICLE BEAMS. Chinese Physics C, 1980, 4(5): 579-587.

Access

Get Citation

Chen Yinbao and Huang Zhibin. Nonlinear Space Charge Effects and Emittance Growth in Linac[J]. Chinese Physics C, 1999, 23(12): 1231-1242.

Chen Yinbao and Huang Zhibin. Nonlinear Space Charge Effects and Emittance Growth in Linac[J]. Chinese Physics C, 1999, 23(12): 1231-1242. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1998-11-02
Revised: 1900-01-01

Article Metric

Article Views(4328)
PDF Downloads(611)
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

Nonlinear Space Charge Effects and Emittance Growth in Linac

Chen Yinbao^,
Huang Zhibin

Corresponding author:Chen Yinbao,

China Institute of Atomic Energy, Beokomg 102413

Received Date:1998-11-02
Accepted Date:1900-01-01
Available Online:1999-12-05

Abstract:The nonlinear space charge effect of bunched beam in linac is one of the important reasons that induce the emittance growth. The general formulas for calculating the potential of space charge with nonuniform distribuhon in surrounding structure are presented. For a bunched beam with different distribuhon in waveguide of linac, the expresses of the nonlinear field energy of a cylinder model of space charge are derived, and the numerical results of the nonlinear field energy for different density distributions are given. The emittance growthes caused by these nonuniformities are discussed.