Improvement of charge resolution for radioactive heavy ions at relativistic energies using a hybrid detector system

Improvement of charge resolution for radioactive heavy ions at relativistic energies using a hybrid detector system
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使用混合探测器系统提高相对论能量下放射性重离子的电荷分辨率

DOI:
10.1016/j.nima.2019.03.063
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发表时间:
2019-01
期刊:
Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
影响因子:
--
通讯作者:
Z.T.Zhou
Z.T.Zhou
中科院分区:
其他
文献类型:
--
作者:
J.W.Zhao;B.H.Sun;L.C.He;G.S.Li;W.J.Lin;C.Y.Liu;Z.Liu;C.G.Lu;D.P.Shen;Y.Z.Sun;Z.Y.Sun;I.Tanihata;S.Terashima;D.T.Tran;F.Wang;J.Wang;S.T.Wang;X.L.Wei;X.D.Xu;L.H.Zhu;J.C.Zhang;X.H.Zhang;Y.Zhang;Z.T.Zhou

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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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