A fast luminosity monitor for BEPC II

	A fast luminosity monitor for BEPC II
	Xue, Z; Shan, Q; Xu, ZZ; Wang, XL; Wu, J; Wang, YG; Zhang, T; Hu, T; Cai, X; Wang, YF
刊名	CHINESE PHYSICS C
	2010
卷号	34 期号:4 页码:487-491
关键词	luminosity monitor radiative Bhabha relative luminosity background subtraction beam spot
通讯作者	[Xue Zhen ; Shan Qing ; Xu Zi-Zong ; Wang Xiao-Lian ; Wu Jian] Univ Sci & Technol China, Dept Modern Phys, High Energy Phys Lab, Hefei 230026, Peoples R China ; [Wang Yong-Gang ; Zhang Tao] Univ Sci & Technol China, Dept Modern Phys, Lab Fast Elect, Hefei 230026, Peoples R China ; [Xue Zhen ; Hu Tao ; Cai Xiao ; Wang Yi-Fang] CAS, Inst High Energy Phys, Beijing 100049, Peoples R China
英文摘要	The fast luminosity monitor counting the gamma photons above a given energy threshold emitted from radiative Bhabha scattering has been operated in the BEPC II to measure the relative luminosity bunch by bunch for the first time and used successfully in beam tuning of BEPC II. In the relative mode the monitor is able to deliver the relative luminosities with an accuracy of 0.8 %. By steering the electron beam while observing the counting rate changes of the monitor the horizontal and vertical sizes of the bunch spots can be estimated as: s(xe) + = s(xe) = 0.356 mm, s(ye) + = s(ye)- = 0.011 mm.
学科主题	Physics
类目[WOS]	Physics, Nuclear ; Physics, Particles & Fields
研究领域[WOS]	Physics
原文出处	SCI
语种	英语
WOS记录号	WOS:000276679900013
内容类型	期刊论文
源URL	[http://ir.ihep.ac.cn/handle/311005/237686]
专题	高能物理研究所_院士高能物理研究所_实验物理中心高能物理研究所_加速器中心中国科学院高能物理研究所_中国散裂中子源
作者单位	中国科学院高能物理研究所
推荐引用方式 GB/T 7714	Xue, Z,Shan, Q,Xu, ZZ,et al. A fast luminosity monitor for BEPC II[J]. CHINESE PHYSICS C,2010,34(4):487-491.
APA	Xue, Z.,Shan, Q.,Xu, ZZ.,Wang, XL.,Wu, J.,...&王贻芳.(2010).A fast luminosity monitor for BEPC II.CHINESE PHYSICS C,34(4),487-491.
MLA	Xue, Z,et al."A fast luminosity monitor for BEPC II".CHINESE PHYSICS C 34.4(2010):487-491.