A high performance Time-of-Flight detector applied to isochronous mass measurement at CSRe

A high performance Time-of-Flight detector has been designed and constructed for isochronous mass spectrometry at the experimental Cooler Storage Ring (CSRe). The detector has been successfully used in an experiment to measure the masses of the N≈ Z≈33 nuclides near the proton drip-line. Of particul...

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Bibliographic Details
Published in:Nuclear instruments & methods in physics research. Section A, Accelerators, spectrometers, detectors and associated equipment Accelerators, spectrometers, detectors and associated equipment, 2010-12, Vol.624 (1), p.109-113
Main Authors: Mei, Bo, Tu, Xiaolin, Wang, Meng, Xu, Hushan, Mao, Ruishi, Hu, Zhengguo, Ma, Xinwen, Yuan, Youjin, Zhang, Xueying, Geng, Peng, Shuai, Peng, Zang, Yongdong, Tang, Shuwen, Ma, Peng, Lu, Wan, Yan, Xinshuai, Xia, Jiawen, Xiao, Guoqing, Guo, Zhongyan, Zhang, Hongbin, Yue, Ke
Format: Article
Language:English
Subjects:
65As
Accelerators
Atomic properties
Construction
Detectors
Isochronous mass measurement
Mass spectrometry
Nuclides
Pulse height
Spectrometers
ToF detector
Z identification
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Summary:A high performance Time-of-Flight detector has been designed and constructed for isochronous mass spectrometry at the experimental Cooler Storage Ring (CSRe). The detector has been successfully used in an experiment to measure the masses of the N≈ Z≈33 nuclides near the proton drip-line. Of particular interest is the mass of 65As. A maximum detection efficiency of 70% and a time resolution of 118±8 ps (FWHM) have been achieved in the experiment. The dependence of detection efficiency and signal average pulse height (APH) on atomic number Z has been studied. The potential of APH for Z identification has been discussed.
ISSN:0168-9002
1872-9576
DOI:10.1016/j.nima.2010.09.001