Accelerators : Theoretical analysis of BLM system for HLS II. (14th January 2015)

• Record Type: Journal Article
• Authors: Chen, Yu-Kai; Li, Yu-Xiong; Li, Wei-Min; He, Li-Juan
• Is Part Of: Chinese physics C. Volume 39:Number 1(2015:Jan.)
• Page Start: 017003
• Publication Date: 2015-01-14
• Subjects: Particles (Nuclear physics) -- Periodicals; Nuclear physics -- Periodicals; 539.76
• DOI: 10.1088/1674-1137/39/1/017003
• Languages: English
• ISSNs: 1674-1137

Abstract

Abstract: Hefei Light Source (HLS) is being upgraded to HLS II. Its emittance will be much lower than before, therefore the Touschek scattering will increase significantly and become the dominant factor of beam loss. So it is necessary to build a new beam loss monitoring (BLM) system that, in contrast to the old one, is able to obtain the quantity and position information of lost electrons. This information is useful in the commissioning, troubleshooting, and beam lifetime studying for HLS II. This paper analyzes the distribution features of different kinds of lost electrons, introduces the operation parameters of the new machine and discusses how to choose proper monitoring positions. Based on these comprehensive analyses, a new BLM system for HLS II is proposed.