Improvement of Nonlinearity Correction for BESIII ETOF Upgrade
文献类型：期刊论文
| 作者 | Sun, WJ; Cao, P; Ji XL(季晓璐); Dai HL(代洪亮) ; 张杰(实); Ji, XL; Fan, HH; Dai, HL; Zhang, J; Liu, SB
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| 刊名 | IEEE TRANSACTIONS ON NUCLEAR SCIENCE
 |
| 出版日期 | 2015 |
| 卷号 | 62期号:4页码:1766-1770 |
| 关键词 | BESIII calibration endcap time of flight (ETOF) nonlinearity correction time-to-digital converter (TDC) |
| 英文摘要 | An improved scheme to implement integral non-linearity (INL) correction of time measurements in the Beijing Spectrometer III Endcap Time-of-Flight (BESIII ETOF) upgrade system is presented in this paper. During upgrade, multi-gap resistive plate chambers (MRPC) are introduced as ETOF detectors which increases the total number of time measurement channels to 1728. The INL correction method adopted in BESIII TOF proved to be of limited use, because the sharply increased number of electronic channels required for reading out the detector strips degrade the system configuration efficiency severely. Furthermore, once installed into the spectrometer, BESIII TOF electronics do not support the TDCs' nonlinearity evaluation online. In this proposed method, INL data used for the correction algorithm are automatically imported from a non-volatile read-only memory (ROM) instead of from data acquisition software. This guarantees the real-time performance and system efficiency of the INL correction, especially for the ETOF upgrades with massive number of channels. Besides, a signal that is not synchronized to the system 41.65 MHz clock from BEPCII is sent to the frontend electronics (FEE) to simulate pseudo-random test pulses for the purpose of online nonlinearity evaluation. Test results show that the time measuring INL errors in one module with 72 channels can be corrected online and in real time. |
| 学科主题 | Engineering; Nuclear Science & Technology |
| 类目[WOS] | Engineering, Electrical & Electronic ; Nuclear Science & Technology |
| 收录类别 | SCI ; EI |
| WOS记录号 | WOS:000360016400009 |
| 公开日期 | 2016-05-03 |
| 源URL | [http://ir.ihep.ac.cn/handle/311005/228656]  |
| 专题 | 中国科学院高能物理研究所 |
| 推荐引用方式 GB/T 7714 | Sun, WJ,Cao, P,Ji XL,et al. Improvement of Nonlinearity Correction for BESIII ETOF Upgrade[J]. IEEE TRANSACTIONS ON NUCLEAR SCIENCE,2015,62(4):1766-1770. |
| APA | Sun, WJ.,Cao, P.,季晓璐.,代洪亮.,张杰.,...&An, Q.(2015).Improvement of Nonlinearity Correction for BESIII ETOF Upgrade.IEEE TRANSACTIONS ON NUCLEAR SCIENCE,62(4),1766-1770. |
| MLA | Sun, WJ,et al."Improvement of Nonlinearity Correction for BESIII ETOF Upgrade".IEEE TRANSACTIONS ON NUCLEAR SCIENCE 62.4(2015):1766-1770. |
入库方式： OAI收割
来源：高能物理研究所
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