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20 April 2024

» arxiv » 1609.9064

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Plastic scintillation detectors for precision time-of-flight measurements of relativistic heavy ions
Wen-Jian Lin ; Jian-Wei Zhao ; Bao-Hua Sun ; Liu-Chun He ; Wei-Ping Lin ; Chuan-Ye Liu ; Isao Tanihata ; Satoru Terashima ; Yi Tian ; Feng Wang ; Meng Wang ; Guang-Xin Zhang ; Xue-Heng Zhang ; Li-Hua Zhu ; Li-Min Duan ; Rong-Jiang Hu ; Zhong Liu ; Chen-Gui Lu ; Pei-Pei Ren ; Li-Na Sheng ; Zhi-Yu Sun ; Shi-Tao Wang ; Tao-Feng Wang ; Zhi-Guo Xu ; Duo Yan ; Ke Yue ; Yong Zheng ;
Date:	28 Sep 2016
Abstract:	Plastic scintillation detectors for Time-of-Flight (TOF) measurements are almost essential for event-by-event identification of relativistic rare isotopes. In this work, a pair of plastic scintillation detectors of 50 $ imes$ 50 $ imes$ 3$^{t}$ mm$^3$ and 80 $ imes$ 100 $ imes$ 3$^{t}$ mm$^3$ have been set up at the external target facility (ETF), Institute of Modern Physics. Their time, energy and position responses are measured with $^{18}$O primary beam at 400 MeV/nucleon. After the off-line walk-effect and position corrections, the time resolution of the two detectors are determined to be 27 ps ($sigma$) and 36 ps ($sigma$), respectively. Both detectors have nearly the same energy resolution of 3$\%$ ($sigma$) and position resolution of 2 mm ($sigma$). The detectors have been used successfully in nuclear reaction cross section measurements, and will be be employed for upgrading RIBLL2 beam line at IMP as well as for the high energy branch at HIAF.
Source:	arXiv, 1609.9064
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