Noninterceptive transverse emittance measurements using BPM for Chinese ADS R&D project

• Published in: Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Vol. 816; pp. 171 - 175
• Main Authors: Wang, Zhi-Jun, Feng, Chi, He, Yuan, Dou, Weiping, Tao, Yue, Chen, Wei-long, Jia, Huan, Liu, Shu-hui, Wang, Wang-sheng, Zhang, Yong, Wu, Jian-qiang, Zhang, Sheng-hu, Zhang, X.L.
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 21.04.2016
• Subjects: Accelerators; Beams (radiation); BPM; Chinese ADS facility; Detectors; Emittance; Emittance measurements; High power proton linac; Injector; Measuring instruments; Noninterceptive measurement; Scanners; Slits; Wire; High power proton linac; Noninterceptive measurement; Chinese ADS facility; Emittance measurements; Injector; BPM
• ISSN: 0168-9002; 1872-9576
• DOI: 10.1016/j.nima.2016.01.074

The noninterceptive four-dimensional transverse emittance measurements are essential for commissioning the high power continue-wave (CW) proton linacs as well as their operations. The conventional emittance measuring devices such as slits and wire scanners are not well suited under these conditions due to sure beam damages. Therefore, the method of using noninterceptive Beam Position Monitor (BPM) is developed and demonstrated on Injector Scheme II at the Chinese Accelerator Driven Sub-critical System (China-ADS) proofing facility inside Institute of Modern Physics (IMP) [1]. The results of measurements are in good agreements with wire scanners and slits at low duty-factor pulsed (LDFP) beam. In this paper, the detailed experiment designs, data analysis and result benchmarking are presented.