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A 12-bit multichannel ADC for pixel detectors in particle physics and nuclear imaging

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Science china(Technological sciences) 2010年第5期53卷 1208-1214页

作者： WEI Wei1,2,3,wang zheng1,3 & ZHAo JingWei1,3 1 institute of high energy physics,chinese academy of sciences,beijing 100049,china 2.graduate University of chinese academy of sciences,beijing 100049,china 3 Key Lab of Nuclear Detection Technology and Nuclear Electronics of chinese academy of sciences,beijing 100049,china 1. institute of high energy physics Chinese Academy of Sciences Beijing 100049 China2. Graduate University of Chinese Academy of Sciences Beijing 100049 China3. Key Lab of Nuclear Detection Technology and Nuclear Electronics of Chinese Academy of Sciences Beijing 100049 China

Modern pixel detectors in nuclear and particle physics experiments and also in nuclear imaging,starve for highly integrated application specified integrated circuit(ASIC),whereas in china the study of ASIC still stays far away from practical *** lack of ASIC strictly limits the research and development of domestic high energy physics field.A 12-bit multichannel ADC designed for high density readout is introduced as a major candidate for solution.A precise model is discussed and the simulation fully agrees with the model,which indicates a key principle of *** is performed according to the given rule,and novel layout techniques are carried *** results in all aspects are also obtained,showing an excellent real performance,which satisfies the practical requirement.

关键词： application specified integrated circuit high density readout Wilkinson ADC multi-channel ADC

observation of signature inversion in the πh_(9/2)(×)νi_(13/2) oblate band

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Science china(physics,Mechanics & Astronomy) 2005年第4期48卷 442-449页

作者： XIE Chengying1,2, ZHoU Xiaohong1,2, ZHANG Yuhu1, GUo yingxiang1, LEI Xiangguo1, zheng Yong1, LIU Minliang1, SoNG Litao1, wang Hualei1, YU Haiping1, GUo Wentao 1, LUo peng1, WU Zhijun1, ZHU Lihua3 & WU Xiaoguang3 ⒈ institute of Modern physics, chinese academy of sciences, Lanzhou 730000, china ⒉ graduate school of the chinese academy of sciences, beijing 100049, china ⒊ institute of Atomic energy Research, beijing 102413, china institute of Modern physics Chinese Academy of Sciences Lanzhou China graduate school of the chinese academy of sciences Beijing China institute of Atomic energy Research Beijing China

high-spin states in 190Tl have been studied via the 160Gd(35Cl, 5nγ) reaction. The level scheme, consisting of the π h9 /2 νi13/2 oblate band and a cascade with character of single particle excitations, has been established. Spin values have been firmly assigned to the oblate band in 190Tl, resulting in low-spin signature inversion in the π h9 /2 νi13/2 oblate band for the first time. Based on the similarity of the level structure in doubly odd Tl nuclei, spin values for the oblate bands in 192―200Tl should be re-assigned, and a consistent low-spin signature inversion has occurred in these oblate deformed nuclei. The low-spin signature inversion phenomena can be interpreted qualitatively by using the 2-quasiparticle plus rotor model including p-n residual interactions.

关键词： deformed odd-odd 190Tl, oblate rotational bands, signature inversion, 2-qp+rotor model.

primary scientific results of chang'E-1 lunar mission

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Science china Earth sciences 2010年第11期53卷 1565-1581页

作者： oUYANG ZiYuan1,2, LI ChunLai1, ZoU YongLiao1, ZHANG hongBo1, Lü chang1, LIU JianZhong1, LIU JianJun1, ZUo Wei1, SU Yan1, WEN WeiBin1, BIAN Wei1, ZHAo Baochang3, wang JianYu4, YANG JianFeng3, chang Jin5, wang HuanYu6, ZHANG XiaoHui7, wang ShiJin7, wang Min1, REN Xin1, MU LingLi1, KoNG DeQing1, wang XiaoQian1, wang Fang1, GENG Liang1, ZHANG ZhouBin1, zheng Lei1, ZHU Xinying1, zheng YongChun1, LI JunDuo1, ZoU XiaoDuan1, XU Chun1, SHI ShuoBiao1, GAo YiFei1 & GAo GuanNan1 1 National Astronomical observatories, chinese academy of sciences, beijing 100012, china 2 institute of Geochemistry, chinese academy of sciences, Guiyang 550002, china 3 Xi’an institute of optics and precision Mechanics, chinese academy of sciences, Xi’an 710119, china 4 Shanghai institute of Technical physics, chinese academy of sciences, Shanghai 200083, china 5 purple Mountain observatory, chinese academy of sciences, Nanjing 210008, china 6 institute of high energy physics, chinese academy of sciences, beijing 100049, china 7 Center for Space Science and Applied Research, chinese academy of sciences, beijing 100190, china 1. National Astronomical observatories Chinese Academy of Sciences Beijing 100012 China2. Institute of Geochemistry Chinese Academy of Sciences Guiyang 550002 China3. Xi’an Institute of Optics and Precision Mechanics Chinese Academy of Sciences Xi’an 710119 China4. Shanghai Institute of Technical Physics Chinese Academy of Sciences Shanghai 200083 China5. Purple Mountain Observatory Chinese Academy of Sciences Nanjing 210008 China6. Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China7. Center for Space Science and Applied Research Chinese Academy of Sciences Beijing 100190 China

The strategic plan for the development of the unmanned chinese Lunar Exploration program is characterized by three distinct stages: "orbiting around", "landing on" and "returning from" the Moon. The first chinese lunar probe, chang'E-1, which was successfully launched on october 24th, 2007 at Xichang Satellite Launch Center, and guided to crash on the Moon on March 1st, 2009, at 52.36°E, 1.50°S, in the north of Mare Fecunditatis, is the first step towards the "orbiting around" stage. The chang'E-1 mission lasted 495 days, exceeding the expected life-span by about four months. A total of 1.37 TB raw data was received from chang'E-1. It was then processed into 4 TB scientific data products at various levels. Many scientific results have been obtained by analyzing these data, including especially the "global lunar image from the first chinese lunar explora- tion mission". All scientific goals of chang'E-1 have been achieved. It provides much useful materials for further advances of lunar sciences and planetary chemistry. Meanwhile, these results will serve as a firm basis for future chinese lunar missions.

关键词： lunar orbiter chang’E-1 scientific data results

The properties of halo structure for ^(17)B

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Science china(physics,Mechanics & Astronomy) 2008年第7期51卷 781-787页

作者： HU zhengGuo1, wang Meng1, XU HuShan1, SUN ZhiYu1, wang JianSong1, XIAo GuoQing1, ZHAN WenLong1, XIAo ZhiGang1, MAo RuiShi1,2, LI Chen1, ZHANG Xueying1,2, ZHANG hongBin1, ZHAo TieCheng1, XU ZhiGuo1, wang Yue1,2, CHEN RuoFu1,2, HUANG TianHeng1,2, FU Fen1,2, GAo Qi1,2, HAN JianLong1,2, ZHANG XueHeng1,2, zheng Chuan1,2, YU Yuhong1,2 & GUo ZhongYan1 1 institute of Modern physics, chinese academy of sciences, Lanzhou 730000, china 2.graduate University of the chinese academy of sciences, beijing 100049, china 1. institute of Modern physics Chinese Academy of Sciences Lanzhou 730000 China 2. graduate University of the chinese academy of sciences Beijing 100049 China

The total reaction cross section (1724±93 mb) of 17B at the energy of 43.7 A MeV on C target has been measured by using the transmission method at the Radioactive Ion Beam Line in Lanzhou (RIBLL). Assuming 17B consists of a core 15B plus two halo neutrons,the total cross section of 17B on C target was calculated with the zero-range Glauber model,where double Gaussian density distributions and Gaussian plus Ho density distributions were used. It can fit the experimental data very well. The characteristic of halo structure for 17B was found with a large diffusion of the neutrons density distribution.

关键词： total cross section density distribution Glauber model the characteristic of halo structure

Algorithm of Reducing the Non-uniformity of Images in LED Display panel

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Algorithm of Reducing the Non-uniformity of Images in LED Di...

10B-doped MCp detector developed for neutron resonance imaging at Back-n white neutron source

2010 The 3rd International Conference on power Electronics and Intelligent Transportation System (pEITS 2010)

作者： Feng chang changchun institute of optics,Fine Mechanics and physics,chinese academy of sciences changchun,Jilin province,china graduate school of the chinese academy of sciences beijing,china Rui-guang wang,Xi-feng zheng and Tie-fu Ding changchun institute of optics,Fine Mechanics and physics,chinese academy of sciences changchun,Jilin province,china

For the purposes of reducing the non-uniformity of images in LED display panel further,propose an ***,analyze the causes of the problem which images in LED display panel have shortcomings of the non-uniformity of ***,introduce the development course of the correction techniques which are used to reduce the non-uniformity of ***,point out the ground that location correction must be carried ***,for the example of a LED display panel which is spliced by modules,construct the algorithm ***,describe the realization steps of the algorithm in accordance with this constructed ***,this algorithm is implemented in a LED display panel,whose resolution is 640×*** results show that this algorithm is able to reduce the non-uniformity of images obviously.

关键词： the non-uniformity of images algorithm location correction LED display panel

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Nuclear Science and Techniques 2024年第8期35卷 58-68页

作者： Qiang Li Li‑Jiao wang Jing‑Yu Tang Xiang‑Biao Qiu zhen Chen Mao‑Yuan Zhao chang‑Jun Ning Kai pan Wei Xu Tao Li Su‑peng Lu Han Yi Rui‑Rui Fan chang‑Qing Feng Rong Zhang Xiao‑Yang Sun Qi An Hao‑Fan Bai Jiang‑Bo Bai Jie Bao ping Cao Qi‑ping Chen Yong‑Hao Chen Zeng‑Qi Cui An‑Chuan Fan Fan‑zhen Feng Min‑Hao Gu chang‑Cai Han Zi‑Jie Han Guo‑Zhu He Yong‑Cheng He Yang hong Yi‑Wei Hu Han‑Xiong Huang Wei Jiang Zhi‑Jie Jiang zheng‑Yao Jin Ling Kang Bo Li Gong Li Xiao Li Yang Li Jie Liu Rong Liu Shu‑Bin Liu Yi‑Na Liu Guang‑Yuan Luan Jie Ren Zhi‑Zhou Ren Xi‑Chao Ruan Zhao‑Hui Song Kang Sun Zhi‑Xin Tan Sheng‑Da Tang Jin‑Cheng wang peng‑Cheng wang Zhao‑Hui wang Zhong‑Wei Wen Xiao‑Guang Wu Xuan Wu Cong Xia Yong‑Ji Yu Guo‑Hui Zhang Hang‑chang Zhang Lin‑Hao Zhang Qi‑Wei Zhang Xian‑peng Zhang Yu‑Liang Zhang Yue Zhang Zhi‑Yong Zhang Zhi‑Hao Zhou Ke‑Jun Zhu Chong Zou institute of high energy physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China State Key Laboratory of particle Detection and Electronics Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Dongguan Songshan Lake Future school Dongguan 523808China school of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230027China State Key Laboratory of particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China North Night Vision Science and Technology(Nanjing)Research institute Co.Ltd Nanjing 211106China Department of Modern physics University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Nuclear physics and Technology School of PhysicsPeking UniversityBeijing 100871China institute of Modern physics Fudan UniversityShanghai 200433China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China china academy of Engineering physics Institute of Nuclear Physics and ChemistryMianyang 621900China USTC archaeometry lab University of Science and Technology of ChinaHefei 230026China Northwest institute of Nuclear Technology Xi’an 710024China University of chinese academy of sciences Beijing 100049China china Shipbuilding Trading Co. LtdBeijing 100044China

Neutron resonance imaging(NRI)has recently emerged as an appealing technique for neutron *** complexity surpasses that of conventional transmission imaging,as it requires a high demand for both a neutron source and ***,the progression of NRI technology has been sluggish since its inception in the 1980s,particularly considering the limited studies analyzing the neutron energy range above *** white neutron source(Back-n)at the china Spallation Neutron Source(CSNS)provides favorable beam conditions for the development of the NRI technique over a wide neutron energy range from eV to ***-sensitive microchannel plates(MCp)have emerged as a cutting-edge tool in the field of neutron detection owing to their high temporal and spatial resolutions,high detection efficiency,and low *** this study,we report the development of a 10B-doped MCp detector,along with its associated electronics,data processing system,and NRI experiments at the *** heavy elements such as gold,silver,tungsten,and indium can be easily identified in the transmission images by their characteristic resonance peaks in the 1–100 eV energy range;the more difficult medium-weight elements such as iron,copper,and aluminum with resonance peaks in the 1–100 keV energy range can also be *** particular,results in the neutron energy range of dozens of keV(Aluminum)are reported here for the first time.

关键词： Neutron resonance imaging 10B doped MCp detector White neutron source Sample nuclide identification

The In-Flight Realtime Trigger and Localization Software of GECAM

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Research in Astronomy and Astrophysics 2024年第10期24卷 11-24页

作者： Xiao-Yun Zhao Shao-Lin Xiong Xiang-Yang Wen Xin-Qiao Li Ce Cai Shuo Xiao Qi Luo Wen-Xi peng Dong-Ya Guo zheng-Hua An Ke Gong Jin-Yuan Liao Yan-Qiu Zhang Yue Huang Lu Li Xing Wen Fei Zhang Jing Duan Chen-Wei wang Dong-Li Shi peng Zhang Qi-Bin Yi Chao-Yang Li Yan-Bing Xu Xiao-Hua Liang Ya-Qing Liu Da-Li Zhang Xi-Lei Sun Fan Zhang Gang Chen Huan-Yu wang Sheng Yang Xiao-Jing Liu Min Gao Mao-Shun Li Jin-Zhou wang Xing Zhou Yi Zhao wang-Chen Xue Chao zheng Jia-Cong Liu Xing-Bo Han Jin-Ling Qi Jia Huang Ke-Ke Zhang Can Chen Xiong-Tao Yang Dong-Jie Hou Yu-Sa wang Rui Qiao Xiang Ma Xiao-Bo Li ping wang Xin-ying Song Li-Ming Song Shi-Jie zheng Bing Li hong-Mei Zhang Yue Zhu Wei Chen Jian-Jian He zhen Zhang Jin Hou hong-Jun wang Yan-Chao Hao Xiang-Yu wang Zong-Yuan Yang Zhi-Long Wen Zhi chang Yuan-Yuan Du Rui Gao Xiao-Fei Lan Yan-Guo Li Gang Li Xu-Fang Li Fang-Jun Lu hong Lu Bin Meng Feng Shi Hui wang Hui-zhen wang Yu-peng Xu Jia-Wei Yang Xue-Juan Yang Shuang-Nan Zhang Chao-Yue Zhang Cheng-Mo Zhang Zhi-Cheng Tang Cheng Cheng Key Laboratory of particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of chinese academy of sciences Chinese Academy of SciencesBeijing 100049China school of Information Science and Technology Southwest Jiaotong UniversityChengdu 611756China Key Laboratory of Stellar and Interstellar physics and Department of physics Xiangtan UniversityXiangtan 411105China physics and Space Science College China West Normal UniversityNanchong 637002China Department of Astronomy Beijing Normal UniversityBeijing 100875China Innovation academy for Microsatellites of CAS Shanghai 201203China changchun University of Science and Technology Changchun 130022China chinese academy of sciences South America Center for Astronomy National Astronomical ObservatoriesCASBeijing 100101China

Realtime trigger and localization of bursts are the key functions of GECAM,an all-sky gamma-ray monitor launched on 2020 December *** developed a multifunctional trigger and localization software operating in the CpU of the GECAM Electronic *** onboard software has the following features:high trigger efficiency for real celestial bursts with a suppression of false triggers caused by charged particle bursts and background fluctuation,dedicated localization algorithm optimized for both short and long bursts,and low time latency of the trigger information which is downlinked through the Global Short Message Communication service of the global BeiDou navigation *** paper provides a detailed description of the design and development of the trigger and localization software system for *** covers the general design,workflow,the main functions,and the algorithms used in the *** paper also includes on-ground trigger tests using simulated gamma-ray bursts generated by a dedicated X-ray tube,as well as an overview of the performance for real celestial bursts during its in-orbit operation.

关键词： telescopes instrumentation:detectors methods:observational

Nondestructive technique for identifying nuclides using neutron resonance transmission analysis at CSNS Back-n

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Nuclear Science and Techniques 2024年第1期35卷 178-187页

作者： Sheng-Da Tang Yong-Hao Chen Jing-Yu Tang Rui-Rui Fan Qiang Li Gong Li Dong Liu zheng-Yao Jin Xing-Zhu Cui Tian-Xiang Chen Yi-Wei Yang Rong Liu Han Yi Yang Li zhen Yang Qi An Hao-Fan Bai Jiang-Bo Bai Jie Bao ping Cao Qi-ping Chen zhen Chen Zeng-Qi Cui An-Chuan Fan chang-Qing Feng Fan-zhen Feng Ke-Qing Gao Min-Hao Gu chang-Cai Han Zi-Jie Han Guo-Zhu He Yong-Cheng He Yang hong Yi-Wei Hu Han-Xiong Huang Wei-Hua Jia Hao-yu Jiang Wei Jiang Zhi-jie Jiang Ling Kang Bo Li Chao Li Jia-Wen Li Xiao Li Jie Liu Shu-Bin Liu Guang-Yuan Luan chang-Jun Ning Bin-Bin Qi Jie Ren Zhi-Zhou Ren Xi-Chao Ruan Zhao-Hui Song Kang Sun Zhi-Xin Tan Li-Jiao wang peng-Cheng wang Zhao-Hui wang Zhong-Wei Wen Xiao-Guang Wu Xuan Wu Li-Kun Xie Yong-Ji Yu Guo-Hui Zhang Lin-Hao Zhang Mo-Han Zhang Qi-Wei Zhang Xian-peng Zhang Yu-Liang Zhang Yue Zhang Zhi-Yong Zhang Mao-Yuan Zhao Lu-ping Zhou Zhi-Hao Zhou Ke-Jun Zhu Sino-French institute of Nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China institute of high-energy physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China school of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230026China State Key Laboratory of particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China State Key Laboratory of particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China USTC Archaeometry Laboratory University of Science and Technology of ChinaHefei 230026China institute of Nuclear physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China Department of Modern physics University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Nuclear physics and Technology School of PhysicsPeking UniversityBeijing 100871China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China Northwest institute of Nuclear Technology Xi’an 710024China University of chinese academy of sciences Beijing 100049China

Nondestructive and noninvasive neutron assays are essential applications of neutron *** resonance transmission analysis(NRTA)is a powerful nondestructive method for investigating the elemental composition of an *** back-streaming neutron line(Back-n)is a newly built time-of-flight facility at the china Spallation Neutron Source(CSNS)that provides neutrons in the eV to 300 MeV range.A feasibility study of the NRTA method for nuclide identification was conducted at the CSNS Back-n via two test *** results demonstrate that it is feasible to identify different elements and isotopes in samples using the NRTA method at *** study reveals its potential future applications.

关键词： CSNS White neutron beam NRTA Nuclide identification Nondestructive method

Study of the response of 10B-doped MCp to wide-energy range neutrons from eV to MeV

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Nuclear Science and Techniques 2024年第8期35卷 132-141页

作者： Qiang Li Li‑Jiao wang Xiang‑Biao Qiu Jing‑Wen Li Wei Xu Tao Li Ze‑Bin Lin chang‑Jun Ning Yong‑Hao Chen Rui‑Rui Fan Kang Sun Jing‑Yu Tang Rong Zhang Han‑Tao Jing Bo Mei Qi An Hao‑Fan Bai Jiang‑Bo Bai Jie Bao ping Cao Qi‑ping Chen zhen Chen Zeng‑Qi Cui An‑Chuan Fan chang‑Qing Feng Fan‑zhen Feng Ke‑Qing Gao Min‑Hao Gu chang‑Cai Han Zi‑Jie Han Guo‑Zhu He Yong‑Cheng He Yang hong Yi‑Wei Hu Han‑Xiong Huang Wei‑Hua Jia Hao‑Yu Jiang Wei Jiang Zhi‑Jie Jiang zheng‑Yao Jin Ling Kang Bo Li Chao Li Gong Li Jia‑Wen Li Xiao Li Yang Li Jie Liu Rong Liu Shu‑Bin Liu Guang‑Yuan Luan Bin‑Bin Qi Jie Ren Zhi‑Zhou Ren Xi‑Chao Ruan Zhao‑Hui Song Zhi‑Xin Tan Sheng‑Da Tang peng‑Cheng wang Zhao‑Hui wang Zhong‑Wei Wen Xiao‑Guang Wu Xuan Wu Li‑Kun Xie Yi‑Wei Yang Han Yi Yong‑Ji Yu Guo‑Hui Zhang Lin‑Hao Zhang Mo‑Han Zhang Qi‑Wei Zhang Xian‑peng Zhang Yu‑Liang Zhang Yue Zhang Zhi‑Yong Zhang Mao‑Yuan Zhao Lu‑ping Zhou Zhi‑Hao Zhou Ke‑Jun Zhu institute of high energy physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China State Key Laboratory of particle Detection and Electronics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Dongguan Songshan Lake Future school Dongguan 523808China North Night Vision Science&Technology(Nanjing)Research institute Co.Ltd. Nanjing 211106China Sino‑French institute of Nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China school of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230027China State Key Laboratory of particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Modern physics University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Nuclear physics and Technology School of PhysicsPeking UniversityBeijing 100871China institute of Nuclear physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China USTC Archaeometry Lab University of Science and Technology of ChinaHefei 230026China Northwest institute of Nuclear Technology Xi’an 710024China University of chinese academy of sciences Beijing 100049China

Neutron-sensitive microchannel plates(nMCps)have applications in neutron detection,including energy spectrum measurements,neutron-induced cross sections,and neutron imaging.10B-doped MCps(B-MCps)have attracted significant attention owing to their potential for exhibiting a high neutron detection efficiency over a large neutron energy *** spatial and temporal resolutions are useful for neutron energy-resolved ***,their practical applications still face many technical *** this study,a B-MCp with 10 mol%10B was tested for its response to wide-energy neutrons from eV to MeV at the Back-n white neutron source at the china Spallation Neutron *** neutron detection efficiency was calibrated at 1 eV,which is approximately 300 times that of an ordinary MCp and indicates the success of 10 B *** factors that caused the reduction in the detection efficiency were simulated and *** neutron energy spectrum obtained using B-MCp was compared with that obtained by other measurement methods,and showed very good consistency for neutron energies below tens of *** response is more complicated at higher neutron energy,at which point the elastic and nonelastic reactions of all nuclides of B-MCp gradually become *** is beneficial for the detection of neutrons,as it compensates for the detection efficiency of B-MCp for high-energy neutrons.

关键词： Neutron radiation image 10B-doped MCp Neutron response Wide-energy range neutrons