Development of readout electronics system for main detector of CSNS multi-function reflectance spectrometer
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摘要: 为满足中国散裂中子源(CSNS)多功能反射谱仪(MR)主探测器高气压3He多丝正比室探测器(MWPC)的需求,研制了专用的读出电子学系统。该系统主要由核心前放板和触发扇出板构成,其中以前放板为核心,采用了6块前放板实现探测器142路模拟信号的数字化,并通过判选机制甄别中子信息,将有效中子事例打包发送给后端,触发扇出板提供同一时刻到达的T0信号和触发信号,以确保数据的对齐。读出电子学系统分别在实验室和束流条件下,进行了相关指标测试,测试结果表明性能优于设计要求。目前MWPC探测器已经成功安装到MR谱仪现场,并且已经开始稳定运行。Abstract: A special readout electronic system was developed to meet the needs of the 3He multiwire proportional chamber detector (MWPC) of multi-functional reflectance spectrometer (MR) of China Spallation Neutron Source (CSNS) . The system is mainly composed of core preamplifier board and trigger fan out board. Six preamplifier boards are used to digitize 142 analog signals of the detector. The neutron information is screened through the discrimination mechanism, and the effective neutron cases are packaged and sent to the back end. The trigger fan out board provides the T0 signal and trigger signal arriving at the same time to ensure the alignment of data. The readout electronics system has been tested in laboratory and beam conditions respectively. The test results show that the performance is better than the design requirements. At present, the MWPC detector has been successfully installed in the field of MR spectrometer, and has begun to operate stably.
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表 1 信号输入值
Table 1. Value of input signal
No. input/mV No. input/mV 1 5 9 80 2 10 10 90 3 20 11 100 4 30 12 120 5 40 13 140 6 50 14 160 7 60 15 180 8 70 16 200 -
[1] 程贺, 张玮, 王芳卫, 等. 中国散裂中子源的多学科应用[J]. 物理, 2019, 48(11):701-707. (Cheng He, Zhang Wei, Wang Fangwei, et al. Applications of the China Spallation Neutron Source[J]. Physics, 2019, 48(11): 701-707 doi: 10.7693/wl20191101 [2] 唐靖宇. 白光中子源及其多学科应用[J]. 中国基础科学, 2020, 22(4):22-31. (Tang Jingyu. White neutron sources and multidisciplinary applications[J]. China Basic Science, 2020, 22(4): 22-31 doi: 10.3969/j.issn.1009-2412.2020.04.004 [3] 王勋, 张凤祁, 陈伟, 等. 基于中国散裂中子源的商用静态随机存取存储器中子单粒子效应实验研究[J]. 物理学报, 2020, 69:162901. (Wang Xun, Zhang Fengqi, Chen Wei, et al. Experimental study on neutron single event effects of commercial SRAMs based on CSNS[J]. Acta Physica Sinica, 2020, 69: 162901 doi: 10.7498/aps.69.20200265 [4] 盛洁明, 童欣, 吴留锁. 非弹性中子散射在稀土钙钛矿研究中的应用[J]. 物理, 2019, 48(12):800-807. (Sheng Jieming, Tong Xin, Wu Liusuo. Investigation of the spin dynamics in rare-earth perovskites by inelastic neutron scattering[J]. Physics, 2019, 48(12): 800-807 doi: 10.7693/wl20191204 [5] 穆奇丽, 周路平, 敬罕涛, 等. CSNS简化实验缪子源的靶区物理研究[J]. 核技术, 2019, 42:120502. (Mu Qili, Zhou Luping, Jing Hantao, et al. Physical study on target area of simplified experimental muon source at CSNS[J]. Nuclear Techniques, 2019, 42: 120502 doi: 10.11889/j.0253-3219.2019.hjs.42.120502 [6] Zhu Tao. The study of perpendicular magnetic anisotropy in the magnetic sensors with linear sensitivity using polarized neutron reflectometry[J]. Journal of Physics: Conference Series, 2016, 711: 012004. doi: 10.1088/1742-6596/711/1/012004 [7] 陈少佳, 赵豫斌, 曾莉欣, 等. CSNS工程GPPD谱仪主探测器读出电子学的研制[J]. 核技术, 2019, 42:060402. (Chen Shaojia, Zhao Yubin, Zeng Lixin, et al. The development of the main detector’s readout electronics for GPPD of CSNS project[J]. Nuclear Techniques, 2019, 42: 060402 doi: 10.11889/j.0253-3219.2019.hjs.42.060402 [8] 周建荣. 二维位置灵敏GEM中子探测器研究[D]. 兰州: 兰州大学, 2020.Zhou Jianrong. Study on the two-dimensional position sensitive GEM neutron detecor[D]. Lanzhou: Lanzhou University, 2020 [9] 温志文. 用于CSNS的8.5atm二维多丝室探测器研制[D]. 兰州: 兰州大学, 2018.Wen Zhiwen. Development of the 8.5atm 2D multi-wire proportional chamber for CSNS[D]. Lanzhou: Lanzhou University, 2018 [10] 刘凌, 祁辉荣, 代洪亮, 等. 散裂中子源高气压二维位置灵敏3He探测器的实验研究[J]. 原子核物理评论, 2019, 36(3):351-356. (Liu Ling, Qi Huirong, Dai Hongliang, et al. Experimental study on two-dimensional position sensitive detector filled with helium-3 for the China Spallation Neutron Source[J]. Nuclear Physics Review, 2019, 36(3): 351-356 doi: 10.11804/NuclPhysRev.36.03.351 [11] 魏阳东, 邱琳, 李嘉辉, 等. 基于数字化仪及延迟线读出的涂硼多丝正比室研究[J]. 西南科技大学学报, 2020, 35(4):82-86. (Wei Yangdong, Qiu Lin, Li Jiahui, et al. Study of a boron-coated MWPC based on digitizer and delay line readout[J]. Journal of Southwest University of Science and Technology, 2020, 35(4): 82-86 doi: 10.3969/j.issn.1671-8755.2020.04.014 [12] 于莉. 位置灵敏中子探测实验中的大规模信号读出方法研究[D]. 合肥: 中国科学技术大学, 2018.Yu Li. Large scale signal readout method for position sensitive neutron detection experiments[D]. Hefei: University of Science and Technology of China, 2018 [13] 任海龙, 赵豫斌, 文双春, 等. CSNS多丝正比室读出电子学[J]. 核技术, 2015, 38:050402. (Ren Hailong, Zhao Yubin, Wen Shuangchun, et al. Electronic readout system for MWPC detector used in CSNS[J]. Nuclear Techniques, 2015, 38: 050402 doi: 10.11889/j.0253-3219.2015.hjs.38.050402 [14] 邹敏, 卢云鹏, 赵豫斌, 等. 中国散裂中子源3He管电子学读出系统研制[J]. 核电子学与探测技术, 2011, 31(10):1077-1081. (Zou Min, Lu Yunpeng, Zhao Yubin, et al. The design of the 3He readout system on CSNS[J]. Nuclear Electronics & Detection Technology, 2011, 31(10): 1077-1081 doi: 10.3969/j.issn.0258-0934.2011.10.003 [15] 詹晓芝, 肖松文, 吴岩延, 等. 多功能中子反射谱仪[J]. 现代物理知识, 2016, 28(1):23-27. (Zhan Xiaozhi, Xiao Songwen, Wu Yanyan, et al. Multifunctional neutron reflection spectrometer[J]. Modern Physics, 2016, 28(1): 23-27 -