Published in
Elsevier, Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 1(624), p. 109-113
DOI: 10.1016/j.nima.2010.09.001
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A high performance Time-of-Flight detector applied to isochronous mass measurement at CSRe
,
Hushan Xu,
Ruishi Mao,
Zhengguo Hu,
Xinwen Ma,
Xinwen,
Youjin Yuan,
Xueying Zhang,
Peng Geng,
Peng Shuai,
Yongdong Zang,
Shuwen Tang,
Peng Ma
and other authors.
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Abstract
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.