Plastic scintillation detectors for precision Time-of-Flight measurements of relativistic heavy ions
Plastic scintillation detectors for precision Time-of-Flight measurements of relativistic heavy ions
复制标题
用于精确测量相对论性重离子飞行时间的塑料闪烁探测器
DOI：
10.1088/1674-1137/41/6/066001
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发表时间：
2017
影响因子：
3.6
通讯作者：
Sun Z
中科院分区：
文献类型：
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作者：
Lin Wen-Jian;Zhao Jian-Wei;Sun Bao-Hua;He Liu-Chun;Lin Wei-Ping;Liu Chuan-Ye;Tanihata Isao;Terashima Satoru;Tian Yi;Wang Feng;Wang Meng;Zhang Guang-Xin;Zhang Xue-Heng;Zhu Li-Hua;Duan Li-Min;Hu Rong-Jiang;Liu Zhong;Lu Chen-Gui;Ren Pei-Pei;Sheng Li-Na;Sun Z
用于飞行时间 (TOF) 测量的塑料闪烁探测器对于相对论稀有同位素的逐事件识别几乎是必不可少的。本工作在中国科学院近代物理研究所外部目标装置(ETF)安装了一对尺寸为50×50×3 t mm 3 和80×100×3 t mm 3 的塑料闪烁探测器。它们的时间、能量和位置响应是用 18 O 主束在 400 MeV/核子下测量的。经过对行走效应和位置的离线校正后，确定两个探测器的时间分辨率分别为 27 ps (σ) 和 36 ps (σ)。两个探测器的能量分辨率几乎相同，均为 3.1%(σ)，位置分辨率约为 3.4 mm (σ)。这些探测器已成功用于核反应截面测量，并将用于升级 IMP 的 RIBLL2 光束线以及 HIAF 的高能分支。
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 dimensions 50× 50× 3 t mm 3 and 80× 100× 3 t mm 3 have been set up at the External Target Facility (ETF), Institute of Modern Physics (IMP). Their time, energy and position responses are measured with the 18 O primary beam at 400 MeV/nucleon. After off-line corrections for walk effect and position, the time resolutions of the two detectors are determined to be 27 ps (σ) and 36 ps (σ), respectively. Both detectors have nearly the same energy resolution of 3.1%(σ) and position resolution of about 3.4 mm (σ). The detectors have been used successfully in nuclear reaction cross section measurements, and will be be employed for upgrading the RIBLL2 beam line at IMP as well as for the high energy branch at HIAF.