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36 results on '"Chen, Haolei"'

1. Measurement of the neutron flux of CSNS Back-n ES#1 under small collimators from 0.5 eV to 300 MeV

Author

Chen, Yonghao, Qiu, Yijia, Li, Qiang, Tang, Shengda, Yang, Yiwei, Ren, Zhizhou, Jiang, Wei, Fan, Ruirui, Yi, Han, Liu, Rong, Tang, Jingyu, Jing, Hantao, Lan, Changlin, Li, Yang, Tan, Zhixin, An, Qi, Bai, Jiangbo, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Zhen, Cui, Zengqi, Feng, Changqing, Gao, Keqing, Gao, Xiaolong, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Hu, Yiwei, Huang, Hanxiong, Huang, Xiru, Jiang, Haoyu, Jiang, Zhijie, Kang, Ling, Li, Bo, Li, Chao, Li, Jiawen, Li, Xiao, Liu, Jie, Liu, Shubin, Liu, Xingyan, Long, Ze, Luan, Guangyuan, Ning, Changjun, Niu, Mengchen, Qi, Binbin, Ren, Jie, Ruan, Xichao, Song, Zhaohui, Sun, Kang, Sun, Zhijia, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Zhaohui, Wen, Zhongwei, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Xiaoyun, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhou, Luping, Zhou, Zhihao, and Zhu, Kejun

Published
2024
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4. Measurements of differential and angle-integrated cross sections for the $^{10}$B($n, {\alpha}$)$^{7}$Li reaction in the neutron energy range from 1.0 eV to 2.5 MeV

Author

Jiang, Haoyu, Jiang, Wei, Bai, Huaiyong, Cui, Zengqi, Zhang, Guohui, Fan, Ruirui, Yi, Han, Ning, Changjun, Zhou, Liang, Tang, Jingyu, An, Qi, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Song, Yingpeng, Sun, Hong, Sun, Kang, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Subjects
Nuclear Experiment
Abstract

Differential and angle-integrated cross sections for the $^{10}$B($n, {\alpha}$)$^{7}$Li, $^{10}$B($n, {\alpha}$$_{0}$)$^{7}$Li and $^{10}$B($n, {\alpha}$$_{1}$)$^{7}$Li$^{*}$ reactions have been measured at CSNS Back-n white neutron source. Two enriched (90%) $^{10}$B samples 5.0 cm in diameter and ~85.0 ${\mu}$g/cm$^{2}$ in thickness each with an aluminum backing were prepared, and back-to-back mounted at the sample holder. The charged particles were detected using the silicon-detector array of the Light-charged Particle Detector Array (LPDA) system. The neutron energy E$_{n}$ was determined by TOF (time-of-flight) method, and the valid ${\alpha}$ events were extracted from the E$_{n}$-Amplitude two-dimensional spectrum. With 15 silicon detectors, the differential cross sections of ${\alpha}$-particles were measured from 19.2{\deg} to 160.8{\deg}. Fitted with the Legendre polynomial series, the ($n, {\alpha}$) cross sections were obtained through integration. The absolute cross sections were normalized using the standard cross sections of the $^{10}$B($n, {\alpha}$)$^{7}$Li reaction in the 0.3 - 0.5 MeV neutron energy region. The measurement neutron energy range for the $^{10}$B($n, {\alpha}$)$^{7}$Li reaction is 1.0 eV $\le$ En < 2.5 MeV (67 energy points), and for the $^{10}$B($n, {\alpha}$$_{0}$)$^{7}$Li and $^{10}$B($n, {\alpha}$$_{1}$)$^{7}$Li$^{*}$ reactions is 1.0 eV $\le$ En < 1.0 MeV (59 energy points). The present results have been analyzed by the resonance reaction mechanism and the level structure of the $^{11}$B compound system, and compared with existing measurements and evaluations., Comment: 19 pages, 34 figures, to be published in Chinese Physics C

Published
2019
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5. Development of the Front-End Electronics for PandaX-III Prototype TPC

Author

Zhu, Danyang, Liu, Shubin, Feng, Changqing, Li, Cheng, and Chen, Haolei

Subjects
Physics - Instrumentation and Detectors, Electrical Engineering and Systems Science - Signal Processing
Abstract

The Particle And Astrophysical Xenon Experiment III (PandaX-III) is an experiment to search for the Neutrinoless Double Beta Decay (NLDBD) using 200 kg radio-pure high-pressure gaseous xenon TPC with Micromegas detectors at both ends and cathode in the middle. A small-scale TPC equipped with 7 Microbulk Micromegas detectors is developed as the prototype detector. 128 channels are readout following an X-Y design with strips of 3 mm pitch (64 channels each direction) from one Micromegas module. Highly integrated front-end electronics composed of 4 front-end cards with 1024 readout channels is designed to readout the charge of Micromegas anode signals, digitize the waveform after shaping and send compressed data to the DCM board. The cornerstone of the front-end electronics is a 64-channel application specific integrated circuit which is based on a switched capacitor array. The integral nonlinearity of the front-end electronics is less than 1% with 1 pC. The noise (RMS) of each readout channel is less than 0.9 fC with 1 microsecond peaking time and 1 pC range. Using the radioactive sources 56 Fe and 137 Cs, joint-tests of front-end electronics with the prototype TPC were carried out and the hit map of 7 Micromegas has been reconstructed.

Published
2018
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6. Development of a 256-channel Time-of-flight Electronics System For Neutron Beam Profiling

Author

Chen, Haolei, Feng, Changqing, Hu, Jiadong, Luo, Laifu, Wang, Li, Tan, Zhixin, and Liu, Shubin

Subjects
Physics - Instrumentation and Detectors, Electrical Engineering and Systems Science - Signal Processing
Abstract

A 256-channel time-of-flight (TOF) electronics system has been developed for a beam line facility called "Back-n WNS" in China Spallation Neutron Source (CSNS). This paper shows the structure and performance of electronics system and the test results in CSNS. A 256-channel photomultiplier tube (PMT) is chosen as the detector in this system. In order to acquire the time information from the PMT, an electronics system has been designed. The electronics system mainly includes one front-end board (FEB), four time-to-digital converter (TDC) boards and one clock distribution module (CDM). There are 256 channels on FEB and 64 channels on each TDC board. The FEB is connected to the PMT with high-density connectors and the TDC boards are connected to the FEB through 2m cables. The TDC boards are 6U size so that they can be PCI extensions for Instrumentation (PXI) cards. Data from TDC boards can be transferred to the PXI control card through the backboard. In order to make four TDC boards work synchronously, a CDM outputs four clock signals to TDC boards which are distributed from one clock source. The TDC boards achieve a timing resolution of 3.5ns by test with a signal generator. The TOF measurement system has been used in CSNS.

Published
2018
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9. Background study for [formula omitted] cross section measurements with C[formula omitted]D[formula omitted] detectors at CSNS Back-n

Author

Ren, Jie, Ruan, Xichao, Jiang, Wei, Bao, Jie, Luan, Guangyuan, Zhang, Qiwei, Huang, Hanxiong, Nie, Yangbo, Ge, Zhigang, An, Qi, Bai, Huaiyong, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Mu, Qili, Ning, Changjun, Qi, Binbin, Ren, Zhizhou, Song, Yingpeng, Song, Zhaohui, Sun, Hong, Sun, Kang, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Jingyu, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yi, Han, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Linhao, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2021
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11. Application of a silicon detector array in [formula omitted] reaction cross-section measurements at the CSNS Back-n white neutron source

Author

Jiang, Wei, Bai, Huaiyong, Jiang, Haoyu, Yi, Han, Fan, Ruirui, Zhang, Guohui, Tang, Jingyu, Sun, Zhijia, Ning, Changjun, Sun, Kang, Gao, Keqing, Cui, Zengqi, An, Qi, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Feng, Changqing, Gu, Minhao, Guo, Fengqin, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Yingpeng, Song, Zhaohui, Sun, Hong, Sun, Xiaoyang, Tan, Zhixin, Tang, Hongqing, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Yanfeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Liang, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2020
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13. Combined gamma-ray and energy-selective neutron radiography at CSNS

Author

Yan, Xiaosong, Yang, Yigang, Li, Qiang, Yang, Xin, Lu, Jian, Meng, Shijian, Tan, Zhixin, Yang, Yiwei, An, Qi, Bai, Huaiyong, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Cui, Zengqi, Fan, Ruirui, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Haoyu, Jiang, Wei, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Ning, Changjun, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Song, Yingpeng, Sun, Hong, Sun, Kang, Sun, Xiaoyang, Sun, Zhijia, Tang, Hongqing, Tang, Jingyu, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yi, Han, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Guohui, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2020
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14. Performance study of the Multi-purpose Time Projection Chamber (MTPC) using a four-component alpha source

Author

Li, Yang, primary, Yi, Han, additional, Sun, Yankun, additional, Bai, Haofan, additional, Lv, You, additional, Chen, Yonghao, additional, Jiang, Wei, additional, Chu, Tianzhi, additional, Zhang, Zhiyong, additional, Chen, Haolei, additional, Chen, Zhen, additional, Zhao, Maoyuan, additional, Feng, Changqing, additional, Liu, Shubin, additional, Zhang, Mohan, additional, Zhang, Hangchang, additional, Gu, Minhao, additional, Bao, Yu, additional, Zhang, Guohui, additional, and Fan, Ruirui, additional

Published
2023
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15. Measurement of relative differential cross sections of the neutron-deuteron elastic scattering for neutron energy from 13 to 52 MeV

Author

Cui, Zengqi, Jiang, Haoyu, Jiang, Wei, Zhang, Guohui, Fan, Ruirui, Pang, Danyang, Sun, Kang, Bai, Huaiyong, Hu, Yiwei, Liu, Jie, Yi, Han, Ning, Changjun, Sun, Zhijia, Tang, Jingyu, An, Qi, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Song, Yingpeng, Sun, Hong, Sun, Xiaoyang, Tan, Zhixin, Tang, Hongqing, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2021
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17. Measurement of the relative differential cross sections of the 1H(n,el) reaction in the neutron energy range from 6 MeV to 52 MeV

Author

Jiang, Haoyu, Jiang, Wei, Cui, Zengqi, Zhang, Guohui, Fan, Ruirui, Sun, Kang, Bai, Huaiyong, Hu, Yiwei, Liu, Jie, Yi, Han, Ning, Changjun, Zhou, Liang, Sun, Zhijia, Tang, Jingyu, An, Qi, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Song, Yingpeng, Sun, Hong, Sun, Xiaoyang, Tan, Zhixin, Tang, Hongqing, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Published
2021
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18. Measurement of neutron-induced fission cross sections of 232Th from 1 to 300 MeV at CSNS Back-n

Author

Chen, Yonghao, primary, Yang, Yiwei, additional, Ren, Zhizhou, additional, Jiang, Wei, additional, Fan, Ruirui, additional, Yi, Han, additional, Liu, Rong, additional, Tang, Jingyu, additional, Jing, Hantao, additional, Li, Yang, additional, Li, Qiang, additional, Tan, Zhixin, additional, An, Qi, additional, Bai, Jiangbo, additional, Bao, Jie, additional, Bao, Yu, additional, Cao, Ping, additional, Chen, Haolei, additional, Chen, Qiping, additional, Chen, Zhen, additional, Cui, Zengqi, additional, Feng, Changqing, additional, Gao, Keqing, additional, Gao, Xiaolong, additional, Gu, Minhao, additional, Han, Changcai, additional, Han, Zijie, additional, He, Guozhu, additional, He, Yongcheng, additional, Hong, Yang, additional, Hu, Yiwei, additional, Huang, Hanxiong, additional, Huang, Xiru, additional, Jiang, Haoyu, additional, Jiang, Zhijie, additional, Kang, Ling, additional, Li, Bo, additional, Li, Chao, additional, Li, Jiawen, additional, Li, Xiao, additional, Liu, Jie, additional, Liu, Shubin, additional, Liu, Xingyan, additional, Long, Ze, additional, Luan, Guangyuan, additional, Ning, Changjun, additional, Niu, Mengchen, additional, Qi, Binbin, additional, Ren, Jie, additional, Ruan, Xichao, additional, Song, Zhaohui, additional, Sun, Kang, additional, Sun, Zhijia, additional, Tang, Xinyi, additional, Tian, Binbin, additional, Wang, Lijiao, additional, Wang, Pengcheng, additional, Wang, Zhaohui, additional, Wen, Zhongwei, additional, Wu, Xiaoguang, additional, Wu, Xuan, additional, Xie, Likun, additional, Yang, Xiaoyun, additional, Yu, Li, additional, Yu, Tao, additional, Yu, Yongji, additional, Zhang, Guohui, additional, Zhang, Linhao, additional, Zhang, Qiwei, additional, Zhang, Xianpeng, additional, Zhang, Yuliang, additional, Zhang, Zhiyong, additional, Zhou, Luping, additional, Zhou, Zhihao, additional, and Zhu, Kejun, additional

Published
2023
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19. Measurements of neutron-induced light-charged particle emission reactions

Author

Zhang Guohui, Bai Huaiyong, Jiang Haoyu, Cui Zengqi, Lu Yi, Hu Yiwei, Chen Jinxiang, Gledenov Yu. M., Sedysheva M. V., Khuukhenkhuu G., Fan Ruirui, Jiang Wei, Yi Han, Tang Jingyu, Liang Zhou, Ning Changjun, An Qi, Bao Jie, Bao Yu, Cao Ping, Chen Haolei, Chen Qiping, Chen Yonghao, Yukai Chen, Chen Zhen, Feng Changqing, Gao Keqing, Gu Minhao, Han Changcai, Han Zijie, He Guozhu, He Yongcheng, Yang Hong, Huang Hanxiong, Huang Weiling, Huang Xiru, Ji Xiaolu, Ji Xuyang, Zhijie Jiang, Jing Hantao, Kang Ling, Kang Mingtao, Li Bo, Li Chao, Li Jiawen, Lun Li, Li Qiang, Xiao Li, Li Yang, Liu Rong, Liu Shubin, Liu Xingyan, Luan Guangyuan, Mu Qili, Qi Binbin, Ren Jie, Ren Zhizhou, Ruan Xichao, Song Zhaohui, Song Yingpeng, Sun Hong, Sun Kang, Sun Xiaoyang, Sun Zhijia, Tan Zhixin, Tang Hongqing, Tang Xinyi, Tian Binbin, Wang Lijiao, Wang Pengcheng, Wang Qi, Wang Taofeng, Wang Zhaohui, Wen Jie, Wen Zhongwei, Wu Qingbiao, Wu Xiaoguang, Wu Xuan, Xie Likun, Yang Yiwei, Yu Li, Yu Tao, Yu Yongji, Zhang Linhao, Zhang Qiwei, Zhang Xianpeng, Zhang Yuliang, Zhang Zhiyong, Zhao Yubin, Zhou Luping, Zhou Zuying, Zhu Danyang, Zhu Kejun, and Zhu Peng

Subjects
Physics, QC1-999
Abstract

In the past two decades cooperating with Frank Laboratory of Neutron Physics (FLNP), Joint Institute for Nuclear Research (JINR) measurements of (n, α) reaction cross sections for 6Li, 10B, 25Mg, 39K, 40Ca, 54,56,57 Fe, 58Ni, 63Cu, 64,67 Zn, 95Mo, 143Nd and 147,149 Sm nuclei were performed in the MeV neutron energy region based on the 4.5 MV Van de Graaff accelerator at Peking University. In recent years, our measurements were extended in three aspects. Firstly, measurements were expanded from two-body reactions to three-body reactions such as 10B (n, t2 α). Secondly, the neutron energy region was extended from below 8 MeV to 8 - 11 MeV by using the HI-13 tandem accelerator of China Institute of Atomic Energy (CIAE), with which cross sections of 54,56 Fe(n, α)53,51Cr reactions were measured. Thirdly, based on the newly-built China Spallation Neutron Source (CSNS) Back-n WNS (White Neutron Source), differential and angle-integrated cross sections for 6Li(n, t) and 10B(n, α) reactions were measured in the neutron energy region from 1 eV to 3 MeV.

Published
2020
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20. Simulations of the measurement results of differential cross sections of n-p and n-d elastic scattering at CSNS Back-n WNS

Author

Cui Zengqi, Bai Huaiyong, Jiang Haoyu, Hu Yiwei, Zhang Guohui, Fan Ruirui, Jiang Wei, Yi Han, Tang Jingyu, An Qi, Bao Jie, Bao Yu, Cao Ping, Chen Haolei, Chen Qiping, Chen Yonghao, Chen Yukai, Chen Zhen, Feng Changqing, Gao Keqing, Gu Minhao, Han Changcai, Han Zijie, He Guozhu, He Yongcheng, Hong Yang, Huang Hanxiong, Huang Weiling, Huang Xiru, Ji Xiaolu, Ji Xuyang, Jiang Zhijie, Jing Hantao, Kang Ling, Kang Mingtao, Li O, Li Chao, Li Jiawen, Li Lun, Li Qiang, Li Xiao, Li Yang, Liu Rong, Liu Shubin, Liu Xingyan, Luan Guangyuan, Mu Qili, Ning Changjun, Qi Binbin, Ren Jie, Ren Zhizhou, Ruan XiChao, Song Zhaohui, Song Yingpeng, Sun Hong, Sun Kang, Sun Xiaoyang, Sun Zhijia, Tan Zhixin, Tang Hongqing, Tang Xinyi, Tian Binbin, Wang Lijiao, Wang Pengcheng, Wang Qi, Wang Taofeng, Wang Zhaohui, Wen Jie, Wen Zhongwei, Wu Qingbiao, Wu Xiaoguang, Wu Xuan, Xie Likun, Yang Yiwei, Yu Li, Yu Tao, Yu Yongji, Zhang Linhao, Zhang Qiwei, Zhang Xianpeng, Zhang Yuliang, Zhang Zhiyong, Zhao Yubin, Zhou Luping, Zhou Zuying, Zhu Danyang, Zhu Kejun, and Zhu Peng

Subjects
Physics, QC1-999
Abstract

Differential cross-section data for the n-p and n-d elastic scattering (1H(n, el), 2H(n, el)) are collected and analyzed from EXFOR library. For En > 20 MeV, the experimental results for both reactions are scarce with large uncertainties and discrepancies in general. For En ≤ 20 MeV, the experimental results lack systematicness, most of which were measured around En = 14 MeV even though the differential cross sections of n-p scattering in 1 keV ≤ En ≤ 20 MeV region are recommended as standard. Taking these facts into account, more accurate and systematic measurements are planned. The experiments will be conducted using ΔE-E detectors of the Light-charged Particle Detector Array (LPDA) system at China Spallation Neutron Source (CSNS) Back-n White Neutron Source (WNS), and simulations are carried out. Using polyethylene and deuterated polyethylene as samples, both n-p and n-d scattering reactions are simulated along with the neutron-induced 12C background reactions, and the 2-D spectra and the counting rates of the ΔE-E detectors are obtained. According to the simulations, the applicable neutron energy range and positions of the detectors are recommended, and the beam time for the event and background measurements is suggested.

Published
2020
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23. Measurement of differential cross sections of neutron-induced deuteron production reactions on carbon from 25 to 52 MeV *

Author

Cui, Zengqi, primary, Jiang, Haoyu, additional, Sun, Kang, additional, Zhang, Guohui, additional, Fan, Ruirui, additional, Jiang, Wei, additional, Bai, Huaiyong, additional, Hu, Yiwei, additional, Liu, Jie, additional, Yi, Han, additional, Ning, Changjun, additional, Sun, Zhijia, additional, Tang, Jingyu, additional, An, Qi, additional, Bao, Jie, additional, Bao, Yu, additional, Cao, Ping, additional, Chen, Haolei, additional, Chen, Qiping, additional, Chen, Yonghao, additional, Chen, Yukai, additional, Chen, Zhen, additional, Feng, Changqing, additional, Gao, Keqing, additional, Gu, Minhao, additional, Han, Changcai, additional, Han, Zijie, additional, He, Guozhu, additional, He, Yongcheng, additional, Hong, Yang, additional, Huang, Hanxiong, additional, Huang, Weiling, additional, Huang, Xiru, additional, Ji, Xiaolu, additional, Ji, Xuyang, additional, Jiang, Zhijie, additional, Jing, Hantao, additional, Kang, Ling, additional, Kang, Mingtao, additional, Li, Bo, additional, Li, Chao, additional, Li, Jiawen, additional, Li, Lun, additional, Li, Qiang, additional, Li, Xiao, additional, Li, Yang, additional, Liu, Rong, additional, Liu, Shubin, additional, Liu, Xingyan, additional, Luan, Guangyuan, additional, Mu, Qili, additional, Qi, Binbin, additional, Ren, Jie, additional, Ren, Zhizhou, additional, Ruan, Xichao, additional, Song, Zhaohui, additional, Song, Yingpeng, additional, Sun, Hong, additional, Sun, Xiaoyang, additional, Tan, Zhixin, additional, Tang, Hongqing, additional, Tang, Xinyi, additional, Tian, Binbin, additional, Wang, Lijiao, additional, Wang, Pengcheng, additional, Wang, Qi, additional, Wang, Taofeng, additional, Wang, Zhaohui, additional, Wen, Jie, additional, Wen, Zhongwei, additional, Wu, Qingbiao, additional, Wu, Xiaoguang, additional, Wu, Xuan, additional, Xie, Likun, additional, Yang, Yiwei, additional, Yu, Li, additional, Yu, Tao, additional, Yu, Yongji, additional, Zhang, Linhao, additional, Zhang, Qiwei, additional, Zhang, Xianpeng, additional, Zhang, Yuliang, additional, Zhang, Zhiyong, additional, Zhao, Yubin, additional, Zhou, Luping, additional, Zhou, Zuying, additional, Zhu, Danyang, additional, Zhu, Kejun, additional, and Zhu, Peng, additional

Published
2021
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24. First experiment on neutron resonance radiography with a Micromegas detector at the Back-n white neutron source

Author

Gao, Keqing, primary, Yi, Han, additional, Zhang, Qingmin, additional, Fan, Ruirui, additional, Li, Yang, additional, Li, Qiang, additional, Zhu, Danyang, additional, Chen, Zhen, additional, Chen, Haolei, additional, Tang, Jingyu, additional, Feng, Changqing, additional, An, Qi, additional, Bai, Huaiyong, additional, Bao, Jie, additional, Bao, Yu, additional, Cao, Ping, additional, Chen, Qiping, additional, Chen, Yonghao, additional, Chen, Yukai, additional, Cui, Zengqi, additional, Gu, Minhao, additional, Han, Changcai, additional, Han, Zijie, additional, He, Guozhu, additional, He, Yongcheng, additional, Hong, Yang, additional, Huang, Hanxiong, additional, Huang, Weiling, additional, Huang, Xiru, additional, Ji, Xiaolu, additional, Ji, Xuyang, additional, Jiang, Haoyu, additional, Jiang, Wei, additional, Jiang, Zhijie, additional, Jing, Hantao, additional, Kang, Ling, additional, Kang, Mingtao, additional, Li, Bo, additional, Li, Chao, additional, Li, Jiawen, additional, Li, Lun, additional, Li, Xiao, additional, Liu, Rong, additional, Liu, Shubin, additional, Liu, Xingyan, additional, Luan, Guangyuan, additional, Mu, Qili, additional, Ning, Changjun, additional, Qi, Binbin, additional, Ren, Jie, additional, Ren, Zhizhou, additional, Ruan, Xichao, additional, Song, Yingpeng, additional, Song, Zhaohui, additional, Sun, Hong, additional, Sun, Kang, additional, Sun, Xiaoyang, additional, Sun, Zhijia, additional, Tan, Zhixin, additional, Tang, Hongqing, additional, Tang, Xinyi, additional, Tian, Binbin, additional, Wang, Lijiao, additional, Wang, Pengcheng, additional, Wang, Qi, additional, Wang, Taofeng, additional, Wang, Zhaohui, additional, Wen, Jie, additional, Wen, Zhongwei, additional, Wu, Qingbiao, additional, Wu, Xiaoguang, additional, Wu, Xuan, additional, Xie, Likun, additional, Yang, Yiwei, additional, Yu, Li, additional, Yu, Tao, additional, Yu, Yongji, additional, Zhang, Guohui, additional, Zhang, Linhao, additional, Zhang, Qiwei, additional, Zhang, Xianpeng, additional, Zhang, Yuliang, additional, Zhang, Zhiyong, additional, Zhao, Yubin, additional, Zhou, Luping, additional, Zhou, Zuying, additional, Zhu, Kejun, additional, and Zhu, Peng, additional

Published
2021
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25. Background study for(n,γ)cross section measurements with C6D6detectors at CSNS Back-n

Author

Ren, Jie, primary, Ruan, Xichao, additional, Jiang, Wei, additional, Bao, Jie, additional, Luan, Guangyuan, additional, Zhang, Qiwei, additional, Huang, Hanxiong, additional, Nie, Yangbo, additional, Ge, Zhigang, additional, An, Qi, additional, Bai, Huaiyong, additional, Bao, Yu, additional, Cao, Ping, additional, Chen, Haolei, additional, Chen, Qiping, additional, Chen, Yonghao, additional, Chen, Yukai, additional, Chen, Zhen, additional, Cui, Zengqi, additional, Fan, Ruirui, additional, Feng, Changqing, additional, Gao, Keqing, additional, Gu, Minhao, additional, Han, Changcai, additional, Han, Zijie, additional, He, Guozhu, additional, He, Yongcheng, additional, Hong, Yang, additional, Huang, Weiling, additional, Huang, Xiru, additional, Ji, Xiaolu, additional, Ji, Xuyang, additional, Jiang, Haoyu, additional, Jiang, Zhijie, additional, Jing, Hantao, additional, Kang, Ling, additional, Kang, Mingtao, additional, Li, Bo, additional, Li, Chao, additional, Li, Jiawen, additional, Li, Lun, additional, Li, Qiang, additional, Li, Xiao, additional, Li, Yang, additional, Liu, Rong, additional, Liu, Shubin, additional, Liu, Xingyan, additional, Mu, Qili, additional, Ning, Changjun, additional, Qi, Binbin, additional, Ren, Zhizhou, additional, Song, Yingpeng, additional, Song, Zhaohui, additional, Sun, Hong, additional, Sun, Kang, additional, Sun, Xiaoyang, additional, Sun, Zhijia, additional, Tan, Zhixin, additional, Tang, Hongqing, additional, Tang, Jingyu, additional, Tang, Xinyi, additional, Tian, Binbin, additional, Wang, Lijiao, additional, Wang, Pengcheng, additional, Wang, Qi, additional, Wang, Taofeng, additional, Wang, Zhaohui, additional, Wen, Jie, additional, Wen, Zhongwei, additional, Wu, Qingbiao, additional, Wu, Xiaoguang, additional, Wu, Xuan, additional, Xie, Likun, additional, Yang, Yiwei, additional, Yi, Han, additional, Yu, Li, additional, Yu, Tao, additional, Yu, Yongji, additional, Zhang, Guohui, additional, Zhang, Linhao, additional, Zhang, Xianpeng, additional, Zhang, Yuliang, additional, Zhang, Zhiyong, additional, Zhao, Yubin, additional, Zhou, Luping, additional, Zhou, Zuying, additional, Zhu, Danyang, additional, Zhu, Kejun, additional, and Zhu, Peng, additional

Published
2021
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27. Application of a silicon detector array in (n,lcp) reaction cross-section measurements at the CSNS Back-n white neutron source

Author

Jiang, Wei, primary, Bai, Huaiyong, additional, Jiang, Haoyu, additional, Yi, Han, additional, Fan, Ruirui, additional, Zhang, Guohui, additional, Tang, Jingyu, additional, Sun, Zhijia, additional, Ning, Changjun, additional, Sun, Kang, additional, Gao, Keqing, additional, Cui, Zengqi, additional, An, Qi, additional, Bao, Jie, additional, Bao, Yu, additional, Cao, Ping, additional, Chen, Haolei, additional, Chen, Qiping, additional, Chen, Yonghao, additional, Chen, Yukai, additional, Chen, Zhen, additional, Feng, Changqing, additional, Gu, Minhao, additional, Guo, Fengqin, additional, Han, Changcai, additional, Han, Zijie, additional, He, Guozhu, additional, He, Yongcheng, additional, Hong, Yang, additional, Huang, Hanxiong, additional, Huang, Weiling, additional, Huang, Xiru, additional, Ji, Xiaolu, additional, Ji, Xuyang, additional, Jiang, Zhijie, additional, Jing, Hantao, additional, Kang, Ling, additional, Kang, Mingtao, additional, Li, Bo, additional, Li, Chao, additional, Li, Jiawen, additional, Li, Lun, additional, Li, Qiang, additional, Li, Xiao, additional, Li, Yang, additional, Liu, Rong, additional, Liu, Shubin, additional, Liu, Xingyan, additional, Luan, Guangyuan, additional, Mu, Qili, additional, Qi, Binbin, additional, Ren, Jie, additional, Ren, Zhizhou, additional, Ruan, Xichao, additional, Song, Yingpeng, additional, Song, Zhaohui, additional, Sun, Hong, additional, Sun, Xiaoyang, additional, Tan, Zhixin, additional, Tang, Hongqing, additional, Tang, Xinyi, additional, Tian, Binbin, additional, Wang, Lijiao, additional, Wang, Pengcheng, additional, Wang, Qi, additional, Wang, Taofeng, additional, Wang, Yanfeng, additional, Wang, Zhaohui, additional, Wen, Jie, additional, Wen, Zhongwei, additional, Wu, Qingbiao, additional, Wu, Xiaoguang, additional, Wu, Xuan, additional, Xie, Likun, additional, Yang, Yiwei, additional, Yu, Li, additional, Yu, Tao, additional, Yu, Yongji, additional, Zhang, Linhao, additional, Zhang, Qiwei, additional, Zhang, Xianpeng, additional, Zhang, Yuliang, additional, Zhang, Zhiyong, additional, Zhao, Yubin, additional, Zhou, Liang, additional, Zhou, Luping, additional, Zhou, Zuying, additional, Zhu, Danyang, additional, Zhu, Kejun, additional, and Zhu, Peng, additional

Published
2020
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28. Measurements of differential and angle-integrated cross sections for the 10B(n, α)7Li reaction in the neutron energy range from 1.0 eV to 2.5 MeV *

Author

Jiang, Haoyu, primary, Jiang, Wei, additional, Bai, Huaiyong, additional, Cui, Zengqi, additional, Zhang, Guohui, additional, Fan, Ruirui, additional, Yi, Han, additional, Ning, Changjun, additional, Zhou, Liang, additional, Tang, Jingyu, additional, An, Qi, additional, Bao, Jie, additional, Bao, Yu, additional, Cao, Ping, additional, Chen, Haolei, additional, Chen, Qiping, additional, Chen, Yonghao, additional, Chen, Yukai, additional, Chen, Zhen, additional, Feng, Changqing, additional, Gao, Keqing, additional, Gu, Minhao, additional, Han, Changcai, additional, Han, Zijie, additional, He, Guozhu, additional, He, Yongcheng, additional, Hong, Yang, additional, Huang, Hanxiong, additional, Huang, Weiling, additional, Huang, Xiru, additional, Ji, Xiaolu, additional, Ji, Xuyang, additional, Jiang, Zhijie, additional, Jing, Hantao, additional, Kang, Ling, additional, Kang, Mingtao, additional, Li, Bo, additional, Li, Chao, additional, Li, Jiawen, additional, Li, Lun, additional, Li, Qiang, additional, Li, Xiao, additional, Li, Yang, additional, Liu, Rong, additional, Liu, Shubin, additional, Liu, Xingyan, additional, Luan, Guangyuan, additional, Mu, Qili, additional, Qi, Binbin, additional, Ren, Jie, additional, Ren, Zhizhou, additional, Ruan, Xichao, additional, Song, Zhaohui, additional, Song, Yingpeng, additional, Sun, Hong, additional, Sun, Kang, additional, Sun, Xiaoyang, additional, Sun, Zhijia, additional, Tan, Zhixin, additional, Tang, Hongqing, additional, Tang, Xinyi, additional, Tian, Binbin, additional, Wang, Lijiao, additional, Wang, Pengcheng, additional, Wang, Qi, additional, Wang, Taofeng, additional, Wang, Zhaohui, additional, Wen, Jie, additional, Wen, Zhongwei, additional, Wu, Qingbiao, additional, Wu, Xiaoguang, additional, Wu, Xuan, additional, Xie, Likun, additional, Yang, Yiwei, additional, Yu, Li, additional, Yu, Tao, additional, Yu, Yongji, additional, Zhang, Linhao, additional, Zhang, Qiwei, additional, Zhang, Xianpeng, additional, Zhang, Yuliang, additional, Zhang, Zhiyong, additional, Zhao, Yubin, additional, Zhou, Luping, additional, Zhou, Zuying, additional, Zhu, Danyang, additional, Zhu, Kejun, additional, and Zhu, Peng, additional

Published
2019
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29. Simulative analysis on the motion of zinc powder during mechanical zinc plating.

Author

WANG Shuqiang, CHEN Zhao, CHEN Haolei, and ZHOU You

Abstract

The process of mechanical zinc plating was simulated by discrete element method using the EDEM software. The motion characteristics of zinc powder when being stricken by the impact medium at different velocities were studied. The results showed that the zinc powder was compressed longitudinally at the initial stage of mechanical zinc plating, and a zinc coating was finally formed by rearranging and compression deformation longitudinally and transversely. The zinc powder at top layer deformed and rearranged primarily, while the zinc powder at middle and bottom layers rearranged mainly. The zinc coating formed by mechanical plating at an impact velocity of 1.0 m/s was smooth and flat with an 0-grade adhesion. The simulation results were essentially consistent with the experimental results. [ABSTRACT FROM AUTHOR]

Published
2022
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30. Measurements of differential and angle-integrated cross sections for the $^{10}$B($n, ��$)$^{7}$Li reaction in the neutron energy range from 1.0 eV to 2.5 MeV

Author

Jiang, Haoyu, Jiang, Wei, Bai, Huaiyong, Cui, Zengqi, Zhang, Guohui, Fan, Ruirui, Yi, Han, Ning, Changjun, Zhou, Liang, Tang, Jingyu, An, Qi, Bao, Jie, Bao, Yu, Cao, Ping, Chen, Haolei, Chen, Qiping, Chen, Yonghao, Chen, Yukai, Chen, Zhen, Feng, Changqing, Gao, Keqing, Gu, Minhao, Han, Changcai, Han, Zijie, He, Guozhu, He, Yongcheng, Hong, Yang, Huang, Hanxiong, Huang, Weiling, Huang, Xiru, Ji, Xiaolu, Ji, Xuyang, Jiang, Zhijie, Jing, Hantao, Kang, Ling, Kang, Mingtao, Li, Bo, Li, Chao, Li, Jiawen, Li, Lun, Li, Qiang, Li, Xiao, Li, Yang, Liu, Rong, Liu, Shubin, Liu, Xingyan, Luan, Guangyuan, Mu, Qili, Qi, Binbin, Ren, Jie, Ren, Zhizhou, Ruan, Xichao, Song, Zhaohui, Song, Yingpeng, Sun, Hong, Sun, Kang, Sun, Xiaoyang, Sun, Zhijia, Tan, Zhixin, Tang, Hongqing, Tang, Xinyi, Tian, Binbin, Wang, Lijiao, Wang, Pengcheng, Wang, Qi, Wang, Taofeng, Wang, Zhaohui, Wen, Jie, Wen, Zhongwei, Wu, Qingbiao, Wu, Xiaoguang, Wu, Xuan, Xie, Likun, Yang, Yiwei, Yu, Li, Yu, Tao, Yu, Yongji, Zhang, Linhao, Zhang, Qiwei, Zhang, Xianpeng, Zhang, Yuliang, Zhang, Zhiyong, Zhao, Yubin, Zhou, Luping, Zhou, Zuying, Zhu, Danyang, Zhu, Kejun, and Zhu, Peng

Subjects
FOS: Physical sciences, Nuclear Experiment (nucl-ex)
Abstract

Differential and angle-integrated cross sections for the $^{10}$B($n, ��$)$^{7}$Li, $^{10}$B($n, ��$$_{0}$)$^{7}$Li and $^{10}$B($n, ��$$_{1}$)$^{7}$Li$^{*}$ reactions have been measured at CSNS Back-n white neutron source. Two enriched (90%) $^{10}$B samples 5.0 cm in diameter and ~85.0 $��$g/cm$^{2}$ in thickness each with an aluminum backing were prepared, and back-to-back mounted at the sample holder. The charged particles were detected using the silicon-detector array of the Light-charged Particle Detector Array (LPDA) system. The neutron energy E$_{n}$ was determined by TOF (time-of-flight) method, and the valid $��$ events were extracted from the E$_{n}$-Amplitude two-dimensional spectrum. With 15 silicon detectors, the differential cross sections of $��$-particles were measured from 19.2�� to 160.8��. Fitted with the Legendre polynomial series, the ($n, ��$) cross sections were obtained through integration. The absolute cross sections were normalized using the standard cross sections of the $^{10}$B($n, ��$)$^{7}$Li reaction in the 0.3 - 0.5 MeV neutron energy region. The measurement neutron energy range for the $^{10}$B($n, ��$)$^{7}$Li reaction is 1.0 eV $\le$ En < 2.5 MeV (67 energy points), and for the $^{10}$B($n, ��$$_{0}$)$^{7}$Li and $^{10}$B($n, ��$$_{1}$)$^{7}$Li$^{*}$ reactions is 1.0 eV $\le$ En < 1.0 MeV (59 energy points). The present results have been analyzed by the resonance reaction mechanism and the level structure of the $^{11}$B compound system, and compared with existing measurements and evaluations., 19 pages, 34 figures, to be published in Chinese Physics C

Published
2019
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32. Research on 270V/28V aviation bidirectional DC/DC converter

Author

Zhenyang Hao, Cheng Pu, Buqing Lu, Chen Haolei, and Chenmao Shao

Subjects
Small-signal model, Correctness, Control theory, Computer science, Control system, Block diagram, MATLAB, Transfer function, computer, Dc dc converter, Dc converter, computer.programming_language
Abstract

This paper proposes a bidirectional LLC resonant converter based on bidirectional full-bridge DC/DC converter and LLC resonant technique. And the small signal model of the converter is established using the first harmonic approximation. Since it is difficult to obtain the analytic solution of the output transfer function from the seven-order small signal model, the small signal model is reduced. The system control block diagram is established. The design procedure of the aviation 270V/28V bidirectional DC/DC is given. And a simulation model is established in MATLAB/SIMULINK to verify the correctness of the design.

Published
2018

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