Some Studies on Increasing the Luminosity of BEPCⅡ

SUN Yi-Peng; GAO Jie

Chinese Physics C> 2007, Vol. 31> Issue(2) : 189-193

Some Studies on Increasing the Luminosity of BEPCⅡ

SUN Yi-Peng ^, ,
GAO Jie

Institute of High Energy Physics, CAS, Beijing 100049, China2 Key Laboratory of Heavy Ion Physics, Ministry of Education & School of Physics,Peking University, Beijing 100871, China

Abstract
HTML
Reference
Related

PDF

Abstract：
BEPCⅡ, the upgrading project of the Beijing Electron-Positron Collider (BEPC), has been designed with a luminosity of 10³³cm^－2.s^－1 at the τ-charm energy region. According to the beam-beam simulation results, the luminosity of BEPCⅡ~with a crossing collision angle of 11mrad is about 0.50×10³³cm^－2.s^－1 with the original operation mode at the working point of 6.53/5.58. To increase the operating luminosity of the BEPCⅡ, a low momentum compaction factor (α_P) collision mode has been studied which can increase the luminosity to 0.54×10³³cm^－2.s^－1. If the bunch length of the low α_P mode is reduced from 1.5cm to 1.2cm, a mode with vertical beta function at IP equal to 1.2cm could push the luminosity to 0.828×10³³cm^－2.s^－1 at the working points 6.53/5.56.

[1]	LUO Tao , JIN Da-Peng , XING Jun , HUANG Nan , DONG Ming-Yi , LI Wei-Guo , LI Hai-Bo , WU Ying-Zhi , ZHANG Qing-Jiang , LIU Guan-Chuan . Application of movable collimators to the BEPCⅡ. Chinese Physics C, 2010, 34(11): 1742-1748. doi: 10.1088/1674-1137/34/11/015
[2]	XUE Zhen , SHAN Qing , XU Zi-Zong , WANG Xiao-Lian , WU Jian , WANG Yong-Gang , ZHANG Tao , HU Tao , CAI Xiao , WANG Yi-Fang . A fast luminosity monitor for BEPCⅡ. Chinese Physics C, 2010, 34(4): 487-491. doi: 10.1088/1674-1137/34/4/013
[3]	SUI Yan-Feng , WANG Lin , ZHAO Ying , YUE Jun-Hui , LI Xiao-Ping , CAO Jian-She , MA Li . BEPCⅡ wire scanner system. Chinese Physics C, 2010, 34(10): 1661-1664. doi: 10.1088/1674-1137/34/10/021
[4]	LIU Yu-Dong , YUE Jun-Hui , WANG Na . Studies on electron cloud instability in BEPCⅡ. Chinese Physics C, 2009, 33(S2): 71-74. doi: 10.1088/1674-1137/33/S2/018
[5]	ZHANG Chuang . BEPCⅡ: construction and commissioning. Chinese Physics C, 2009, 33(S2): 60-64. doi: 10.1088/1674-1137/33/S2/016
[6]	LI Gang , ZHAO Ji-Jiu , WANG Ke-Xiang , YUE Ke-Juan . Research of Cryogenic Control System at BEPCⅡ. Chinese Physics C, 2008, 32(S1): 83-85.
[7]	WANG Chun-Hong , WANG Xiao-Li , LIU Jia , SHI Hao-Li , GAN Quan , LIU Shu , ZHAO Ji-Jiu . BEPCⅡ Magnet Power Supply Control System. Chinese Physics C, 2007, 31(1): 91-95.
[8]	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.
[9]	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.
[10]	GUO Zhi-Yuan , LIU Yu-Dong , Qin Qing , WANG Jiu-Qing , XING Jun . The Studies of Electron Cloud Instability in the BEPC. Chinese Physics C, 2006, 30(S1): 102-104.
[11]	ZHAO Ji-Jiu , WANG Chun-Hong , LEI Ge , GAO Wen-Chun , WANG Xiao-Li , LI Gang , YUE Ke-Juan , ZHAO Zhuo , LIU Jia , XU Shi-Fu , HUANG Song , XUE Peng , KONG Deng-Ming , MA Mei , WANG Jin-Can , XU Guang-Lei . BEPCⅡ Control System. Chinese Physics C, 2006, 30(11): 1100-1106.
[12]	JIN Da-Peng , GUO Ya-Nan , WANG Yi-Fang , WU Ling-Hui , LIU Zhen-An , ZHAO Di-Xin , YU Zhong-Qiang . Monte Carlo Simulation of the BEPCⅡ/BEPCⅢ Backgrounds——Touschek Effects. Chinese Physics C, 2006, 30(5): 449-453.
[13]	SUN Yi-Peng , GAO Jie . Low αP Mode Study of the BEPCⅡ. Chinese Physics C, 2006, 30(S1): 135-137.
[14]	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.
[15]	SUN Sheng-Sen , SHEN Xiao-Yan , ZHENG Zhi-Peng , YAN Mu-Lin . Monte Carlo Study of K^*(892) Mass Splitting at BEPCⅡ/BESⅢ. Chinese Physics C, 2004, 28(5): 463-468.
[16]	LIU Yu-Dong , GUO Zhi-Yuan , WANG Jiu-Qing . Simulation of the Electron Cloud Density in BEPCⅡ. Chinese Physics C, 2004, 28(3): 222-226.
[17]	YUAN Ren-Xian , YUE Jun-Hui , CAO Jian-She , MA Li . Simulation of BEPCⅡ′s BPM. Chinese Physics C, 2004, 28(6): 664-668.
[18]	ZHU Ying-Chun , SHEN Xiao-Yan , ZHENG Zhi-Peng . Monte Carlo Simulation of Searching for Glueball on BEPCⅡ/BESⅢ. Chinese Physics C, 2003, 27(7): 559-563.
[19]	DAI Jian-Ping , CHAI Xue-Dong , ZHAO Zhen-Tang . Shunt Impedance and Power of the BEPC DC Separator. Chinese Physics C, 2001, 25(7): 680-683.
[20]	Pei Guoxi , Xie Jialin , Zhou Shu , Sun Songlan . Optimization of the BEPC Positron Source. Chinese Physics C, 1990, 14(S2): 125-134.

Access

Get Citation

SUN Yi-Peng and GAO Jie. Some Studies on Increasing the Luminosity of BEPCⅡ[J]. Chinese Physics C, 2007, 31(2): 189-193.

SUN Yi-Peng and GAO Jie. Some Studies on Increasing the Luminosity of BEPCⅡ[J]. Chinese Physics C, 2007, 31(2): 189-193. shu

RIS(for EndNote,Reference Manager,ProCite)

BibTex

Txt

Milestone

Received: 2006-06-21
Revised: 2006-07-14

Article Metric

Article Views(4471)
PDF Downloads(810)
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

Some Studies on Increasing the Luminosity of BEPCⅡ

SUN Yi-Peng ^,
GAO Jie

Corresponding author: SUN Yi-Peng,

Institute of High Energy Physics, CAS, Beijing 100049, China2 Key Laboratory of Heavy Ion Physics, Ministry of Education & School of Physics,Peking University, Beijing 100871, China

Received Date: 2006-06-21
Accepted Date: 2006-07-14
Available Online: 2007-02-05

Abstract: BEPCⅡ, the upgrading project of the Beijing Electron-Positron Collider (BEPC), has been designed with a luminosity of 10³³cm^－2.s^－1 at the τ-charm energy region. According to the beam-beam simulation results, the luminosity of BEPCⅡ~with a crossing collision angle of 11mrad is about 0.50×10³³cm^－2.s^－1 with the original operation mode at the working point of 6.53/5.58. To increase the operating luminosity of the BEPCⅡ, a low momentum compaction factor (α_P) collision mode has been studied which can increase the luminosity to 0.54×10³³cm^－2.s^－1. If the bunch length of the low α_P mode is reduced from 1.5cm to 1.2cm, a mode with vertical beta function at IP equal to 1.2cm could push the luminosity to 0.828×10³³cm^－2.s^－1 at the working points 6.53/5.56.