COMPENSATION OF THE SPACE CHARGE FORCE IN A SYNCHROTRON BY MEANS OF RF QUADRUPOLE

FANG SHOU-XIAN

Chinese Physics C> 1981, Vol. 5> Issue(2) : 169-175

COMPENSATION OF THE SPACE CHARGE FORCE IN A SYNCHROTRON BY MEANS OF RF QUADRUPOLE

FANG SHOU-XIAN

Institute of High Energy Physics, Academia Sinica

Abstract
HTML
Reference
Related

PDF

Abstract：
Quantitative analysis of the space charge force compensation by means of RF quadrupoles in a synchrotron is given. For a bunched beam, if RF quadrupole magnets operating at the fundamental RF frequency (or at most the fundamental and the second harmonic frequency) are applied, the linear betatron turn shift Δv, excited by the linear part of space charge force, would be diminished effectively for the most particles, either in palabolic distribution at longitudinal direction or in Gaussian distribution. Then the space charge limit, mainly decided by nonlinear turn shift, would be raised twice as large as that given in Laslett formular.

References

[1]

R, R. Wilson, Raieing the 6pace-charge limit of a Synchrotron by means of R. F, quadrupoles FNAL report, TM-890 (1979).[2] B. W. Zotter, .Q-shift due to the direct apace-charge field of stacked particle beams. CERN/ISRTH/75-5.[3] J.Gareyte, L. Magnani, F. Pedersen, F. Bacherer and K. Schindl, Beam dynamic ezperments in the CERN ps booster, CERN/MPS/Int, BR/75-5.

[1]	BI Yuan-Jie , ZHANG Tian-Jue , JI Bin , YAO Hong-Juan , AN Shi-Zhong , XING Jian-Sheng , TANG Chuan-Xiang . Research on RF Cavity Tolerance of CYCIAE-100. Chinese Physics C, 2008, 32(S1): 163-165.
[2]	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
[3]	HU Wei , ZHANG Jing , QI Xin . A Digital Control Scheme of Power Supply System for RCS/CSNS. Chinese Physics C, 2007, 31(11): 1062-1066.
[4]	ZHANG Jin-Quan , SONG Ming-Tao , WEI Bao-Wen . Design of Synchrotron for Hadron Therapy. Chinese Physics C, 2007, 31(12): 1122-1125.
[5]	LIU Yong . Space Charge and Longitudinal Stationarity in Bunched Beams. Chinese Physics C, 2003, 27(12): 1128-1132.
[6]	OUYANG Hua-Fu , YU Qing-Chang . Study on the Section-Division of Superconducting Proton Linac. Chinese Physics C, 2001, 25(12): 1225-1230.
[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]	Zhang Chuang . Beam Energy Correction in Synchrotrons. Chinese Physics C, 1999, 23(3): 308-312.
[11]	Chen Yinbao , Huang Zhibin . Nonlinear Space Charge Effects and Emittance Growth in Linac. Chinese Physics C, 1999, 23(12): 1231-1242.
[12]	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.
[13]	SONG Zhong-Heng , WANG Xiao-Min . Calculation of Space Charge Field for Annulus and Disc Bunch of Charged Particles. Chinese Physics C, 1991, 15(1): 7-12.
[14]	YU Qing-Chang . ELECTRON CLOUDS IN AXIAL SYMMETRIC SPACE-CHARGE LENSES. Chinese Physics C, 1989, 13(4): 298-301.
[15]	YIN Zhao-Sheng , XU Jian-Ming . SOME METHODS OF PRODUCING LOCAL SKEW QUADRUPOLE FIELD IN ACCELERATOR RING. Chinese Physics C, 1988, 12(3): 361-364.
[16]	YUAN Qin-Liang , WANG You-Zhi , SHI Cai-Tu , CHEN Guan-Xiong , ZHANG Shu-Xiang , CHEN Ren-Huai , LIU Mao-San . APPLICATION OF PERMANENT MAGNET LENSES IN ACCELERATORS BEAM TRANSPORT AND FOCUSING. Chinese Physics C, 1987, 11(1): 11-15.
[17]	LIU Xian-Hui , LI Yang-Guo . QUADRUPOLE TRANSITION WITH π-NUCLEUS DOUBLE CHARGE EXCHANGE. Chinese Physics C, 1983, 7(2): 197-202.
[18]	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.
[19]	Ye Si-zong , Zhu Yu-cheng , Liu Gui-lin , Shao Bei-bei , Xiao Ting-han , . ASSESSMENT OF THE RADIOLOGICAL IMPACT OF THE 50 GeV BPS¹⁾ ON ITS ENVIRONMENT. Chinese Physics C, 1980, 4(6): 694-705.
[20]	XU JIAN-MING , CAI ZHI-GUO . THE TRACKING PROBLEM IN POWER SUPPLIES FOR SEPARATED FUNCTION MAGNET SYSTEMS OF FAST CYCLING SYNCHROTRONS. Chinese Physics C, 1979, 3(1): 27-33.

Access

Get Citation

FANG SHOU-XIAN. COMPENSATION OF THE SPACE CHARGE FORCE IN A SYNCHROTRON BY MEANS OF RF QUADRUPOLE[J]. Chinese Physics C, 1981, 5(2): 169-175.

FANG SHOU-XIAN. COMPENSATION OF THE SPACE CHARGE FORCE IN A SYNCHROTRON BY MEANS OF RF QUADRUPOLE[J]. Chinese Physics C, 1981, 5(2): 169-175. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 1979-09-06
Revised: 1900-01-01

Article Metric

Article Views(2570)
PDF Downloads(674)
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

COMPENSATION OF THE SPACE CHARGE FORCE IN A SYNCHROTRON BY MEANS OF RF QUADRUPOLE

FANG SHOU-XIAN

Institute of High Energy Physics, Academia Sinica

Received Date: 1979-09-06
Accepted Date: 1900-01-01
Available Online: 1981-04-05

Abstract: Quantitative analysis of the space charge force compensation by means of RF quadrupoles in a synchrotron is given. For a bunched beam, if RF quadrupole magnets operating at the fundamental RF frequency (or at most the fundamental and the second harmonic frequency) are applied, the linear betatron turn shift Δv, excited by the linear part of space charge force, would be diminished effectively for the most particles, either in palabolic distribution at longitudinal direction or in Gaussian distribution. Then the space charge limit, mainly decided by nonlinear turn shift, would be raised twice as large as that given in Laslett formular.