Equipartitioning Design Method of a Quasi-Periodic Focusing-Accelerating Coupled System

FU Shi-Nian; GUAN Xia-Ling; FANG Shou-Xian

近期发现有不法分子冒充我刊与作者联系，借此进行欺诈等不法行为，请广大作者加以鉴别，如遇诈骗行为，请第一时间与我刊编辑部联系确认（《中国物理C》（英文）编辑部电话：010-88235947,010-88236950），并作报警处理。

本刊再次郑重声明：

（1）本刊官方网址为cpc.ihep.ac.cn和https://iopscience.iop.org/journal/1674-1137

（2）本刊采编系统作者中心是投稿的唯一路径，该系统为ScholarOne远程稿件采编系统，仅在本刊投稿网网址（https://mc03.manuscriptcentral.com/cpc）设有登录入口。本刊不接受其他方式的投稿，如打印稿投稿、E-mail信箱投稿等，若以此种方式接收投稿均为假冒。

（3）所有投稿均需经过严格的同行评议、编辑加工后方可发表，本刊不存在所谓的“编辑部内部征稿”。如果有人以“编辑部内部人员”名义帮助作者发稿，并收取发表费用，均为假冒。

《中国物理C》（英文）编辑部

2024年10月30日

Chinese Physics C> 2002, Vol. 26> Issue(1) : 79-86

Equipartitioning Design Method of a Quasi-Periodic Focusing-Accelerating Coupled System

Institute of High Energy Physics, CAS, Beijing 100039, China2 China Institute of Atomic Energy, Beijing 102413, China

Abstract
HTML
Reference
Related

PDF

Abstract：
Intense-leam proton linac sets a very severe requirement on the control of beam loss and emittance growth. Beam physics theory demonstrates that coupling of the strong space charge effect between different freedoms with different temperature will surely increase the beam emittance in the way of beam coherent instability. Therefore it is necessary to design an intense beam accelerator in accordance with the equipartitioning principle. However, this design is too tedious to reach full equipartitioning because the real proton linac is a quasi-periodic coupling system. Thus, we made a few modifications to TRACE3-D, which is a popular code in beam dynamics, and added the equipartitioning design function to it. When the modified TRACE3-D is used together with the PARMILA code, it is easy to realize equipartitioning. This paper will introduce the modification to TRACE3-D code, and then illustrate its application to the design of a DTL linac section, which shows the importance of equipartitioning design in the intense beam linac.

References

[1]

. FANG Shou-Xian. Important Applications of Intense-beam Proton Accelerators. On the VI National Annual Academic Meeting on Accelerators, 2000(in Chinese)(方守贤. 强流质子加速器的重大应用. 第六届全国粒子加速器学术年会, 2000)2. Takeda H. PARMILA, LA-UR–98–4478, 1998, Revised Feb. 16, 20003. Crandall K R, Rusthoi D P. TRACE3-D Documentation, LA-UR-97-8864. LI De-Shan. Research on the Dynamics Design of Intense- beam RFQ Accelerators, Doctorate Thesis, Peking University, 1996(in Chinese)(李德山. 强流RFQ加速器的动力学设计研究, 北京大学博士学位论文, 1996) 5. James on RA. AIP Conference Proceedings, Wurtele J S ed. 1993, 279: 9696. Reiser M. Theory and Design of Charged Particle Beams, John Wiley Sons. Inc., 1994

[1]	HUANG Guo-Qing , YE Kai-Rong . Beam Measurement Using Digital Technology. Chinese Physics C, 2008, 32(S1): 142-144.
[2]	LIU Gui-Min , Dai Zhi-Min , LI Hao-Hu , LIAO Yi , JIANG Bo-Cheng , HOU Jie , ZHAO Zhen-Tang . Lattice Design for SSRF Storage Ring. Chinese Physics C, 2006, 30(S1): 144-146.
[3]	YANG Xue-Qing , FANG Jia-Xun , GUO Zhi-Yu , CHEN Jia-Rong . Matching Design Method for High Intensity RFQ Accelerators. Chinese Physics C, 2006, 30(S1): 19-21.
[4]	WANG Rong , PEI Yuan-Ji , JIN Kai . A Calculation Method for RF Couplers Design Based on Numerical Simulation by Microwave Studio. Chinese Physics C, 2006, 30(6): 566-570.
[5]	ZHU Kun , GUO Zhi-Yu , FANG Jia-Xun , GUO Jiu-Fang . The Design and Simulation of a Cooling System of High Current 4-rod RFQ Cavity. Chinese Physics C, 2005, 29(8): 797-801.
[6]	GU Peng-Da , GEN Zhe-Qiao , CUI Yan-Yan , PEI Guo-Xi , WANG Shu-Hong . Design Studies of RF Phasing System for BEPCII Linac. Chinese Physics C, 2005, 29(3): 316-320.
[7]	BIAN Xiao-Hao , CHEN Huai-Bi , ZHENG Shu-Xin . Calculating of Coupling Factor for Double-Period Accelerating Structure. Chinese Physics C, 2005, 29(9): 900-902.
[8]	KONG Xiao-Xiao , ZHAO Hong-Bin , LI Quan-Feng , LIN Xiao-Qi . A Method to Increase the Dose Rate of Medical Linear Electron Accelerators by Considering the Target and the Flattening Filter as a Whole System When Designing the Target. Chinese Physics C, 2005, 29(9): 903-906.
[9]	LU Hui-Hua , DAI Jian-Ping . Design of a Hybrid Undulator with Superimposed Strong Focusing. Chinese Physics C, 2004, 28(8): 901-906.
[10]	SHANG Lei , LUO Xue-Fang , WANG Wei , HONG Jun , LU Ye-Ming , ZHANG Yi , ZHAO Feng . Design and Upgrading of HLS Linac Modulators. Chinese Physics C, 2003, 27(12): 1133-1137.
[11]	ZHANG Tian-Jue . Design Method for ISOL′s Target System. Chinese Physics C, 2002, 26(3): 290-298.
[12]	Huang Nan , Jin Lihui , Liu Weibin , Wang Dong , Wang Jiuqing , Yu Chenghui . Study of the Lattice Design of BTCF Storage Ring. Chinese Physics C, 1998, 22(12): 1164-1173.
[13]	Huang Zhibin , Chen Yinbao . Simulation of Halo Formation in Breathing Round Beams in a Uniform or Periodic Focusing Channel. Chinese Physics C, 1998, 22(10): 943-950.
[14]	Jin Yuming . Scaling Law for Lattice Design of a Storage Ring. Chinese Physics C, 1997, 21(1): 75-80.
[15]	Yu Qingchang . Focusing of Charged Particle Beams by Isochronic Periodic Fields. Chinese Physics C, 1997, 21(11): 1046-1051.
[16]	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.
[17]	XUE She-Sheng , XIAN Ding-Chang . A LOCALLY GAUGE INVARIANT MEAN FIELD STUDY OF THE Yang-Mills-Higgs FIELD COUPLING SYSTEM ON LATTICE. Chinese Physics C, 1985, 9(2): 174-182.
[18]	WEI KAI-YU . THE BEAM ENVELOP ANALYSIS FOR NONPERIODIC SYSTEMS. Chinese Physics C, 1981, 5(3): 328-333.
[19]	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.
[20]	ZHOU LI-NONG , XIE JIA-LIN . A BI-PERIODIC ACCELERATOR STRUCTURE. Chinese Physics C, 1979, 3(2): 165-175.

Access

Get Citation

FU Shi-Nian, GUAN Xia-Ling and FANG Shou-Xian. Equipartitioning Design Method of a Quasi-Periodic Focusing-Accelerating Coupled System[J]. Chinese Physics C, 2002, 26(1): 79-86.

FU Shi-Nian, GUAN Xia-Ling and FANG Shou-Xian. Equipartitioning Design Method of a Quasi-Periodic Focusing-Accelerating Coupled System[J]. Chinese Physics C, 2002, 26(1): 79-86. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2001-01-08
Revised: 1900-01-01

Article Metric

Article Views(1601)
PDF Downloads(723)
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

Equipartitioning Design Method of a Quasi-Periodic Focusing-Accelerating Coupled System

Corresponding author: FU Shi-Nian,

Institute of High Energy Physics, CAS, Beijing 100039, China2 China Institute of Atomic Energy, Beijing 102413, China

Received Date: 2001-01-08
Accepted Date: 1900-01-01
Available Online: 2002-01-05

Abstract: Intense-leam proton linac sets a very severe requirement on the control of beam loss and emittance growth. Beam physics theory demonstrates that coupling of the strong space charge effect between different freedoms with different temperature will surely increase the beam emittance in the way of beam coherent instability. Therefore it is necessary to design an intense beam accelerator in accordance with the equipartitioning principle. However, this design is too tedious to reach full equipartitioning because the real proton linac is a quasi-periodic coupling system. Thus, we made a few modifications to TRACE3-D, which is a popular code in beam dynamics, and added the equipartitioning design function to it. When the modified TRACE3-D is used together with the PARMILA code, it is easy to realize equipartitioning. This paper will introduce the modification to TRACE3-D code, and then illustrate its application to the design of a DTL linac section, which shows the importance of equipartitioning design in the intense beam linac.