期刊
出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.nima.2019.03.063
关键词
Charge resolution; Energy loss determination; Radioactive ion beam; Particle identification
类别
资金
- National Key R&D program of China [2016YFA0400504]
- National Natural Science Foundation of China [U1832211, 11475014, U1867210]
In typical nuclear physics experiments with radioactive ion beams (RIBs) selected by the in-flight separation technique, Si detectors or ionization chambers are usually equipped for the charge determination of RIBs. The obtained charge resolution relies on the performance of these detectors for energy loss determination, and this affects the particle identification capability of RIBs. We present an approach on improving the resolution of charge measurement for heavy ions by using the abundant energy loss information from different types of existing detectors along the beam line. Without altering the beam line and detectors, this approach can improve the charge resolution by more than 12% relative to the multiple sampling ionization chamber of the best resolution.
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