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arXiv 2103.07416physics.ins-detnucl-ex
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具有快速数字读出功能的HADES scintillator TOF Wall的性能研究和校准策略

Performance study and calibration strategy of the HADES scintillator TOF Wall with fast digital readout

G. Kornakov, L. Chlad, J. Friese, T. Galatyuk, A. Kugler, J. Markert, J. Michel, J. Pietraszko, O. Svoboda, P. Tlusty, M. Traxler

摘要:

在这项工作中,我们提出的校准程序和用于飞行时间(TOF)测量的HADES实验中的长闪烁体棒的性能研究。安装在TOF探测器上的数字前端电子设备需要开发新的校准方法。分光计在粒子识别和指向精度方面的卓越性能使人们能够非常详细地确定电离器对最小电离粒子的响应。已经发现校准参数的显著位置灵敏度,特别是对于信号时间游走。在考虑了位置依赖性后,最短棒(1475 mm)和最长棒(2356 mm)的最小电离粒子定时精度分别从190~ps提高到135~ps和165~ps。这些结果与闪烁体条的时间退化长度一致,如从先前测量确定的。

英文摘要:

We present in this work the calibration procedure and a performance study of long scintillator bars used for the time-of-flight (TOF) measurement in the HADES experiment. The digital front-end electronics installed at the TOF detector required to develop novel calibration methods. The exceptional performance of the spectrometer for particle identification and pointing accuracy allows one to determine in great detail the response of scintillators to minimum ionizing particles. A substantial position sensitivity of the calibration parameters has been found, in particular for the signal time walk. After including the position dependence, the timing accuracy for minimum ionizing particles was improved from 190~ps to 135~ps for the shortest rods (1475 mm) and to 165~ps for the longest (2356 mm). These results are in accordance with the time degradation length of the scintillator bars, as determined from previous measurements.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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