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Two New Dihydroflavanoids from Patrinia vittosa Juss (II)

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Chinese Chemical Letters 2006年第4期17卷 485-488页

作者： jin yong peng guo rong fan yu tian wu Shanghai Key Laboratory for Pharmaceutical Metabolite Research School of Pharmacy Second Military Medical University Shanghai 200433

Two new dihydroflavonoids named villosin A and viUosin B were obtained from the traditional Chinese medicinal herb Patrinia viUosa Juss. Their structures were elucidated as （2S）-5, 2＇, 6＇-trihydroxy-2＂, 2＂-dimethylpyrano [5＂, 6＂： 6, 7]flavanone 1 and （2S, 3＂S）-5, 2＇, 6＇- trihydroxy-3＂-γ, γ-dimethylallyl-2＂, 2＂-dimethyl-3＂, 4＂-dihydropyrano [5＂, 6＂： 6, 7] flavanone 2 by spectroscopic methods including UV, IR, HR-TOF- MS, 1D NMR and 2D NMR techniques.

关键词： Patrinia villosa Juss dihydroflavonoids.

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白花败酱草化学成分研究

中国中药杂志 2006年第2期31卷 128-130页

作者：彭金咏范国荣吴玉田第二军医大学药学院上海200433

目的∶研究白花败酱草的化学成分。方法:硅胶柱和制备液相色谱分离纯化,理化常数和波谱分析(1H-NMR,13C-NMR,MS)确定结构。结果:从白花败酱草醋酸乙酯和正丁醇萃取部位共分得了7个化合物,分别鉴定为5-羟基-7,3′,4′-三甲氧基黄酮(Ⅰ),5... 详细信息

目的∶研究白花败酱草的化学成分。方法:硅胶柱和制备液相色谱分离纯化,理化常数和波谱分析(1H-NMR,13C-NMR,MS)确定结构。结果:从白花败酱草醋酸乙酯和正丁醇萃取部位共分得了7个化合物,分别鉴定为5-羟基-7,3′,4′-三甲氧基黄酮(Ⅰ),5-羟基-7,4′-二甲氧基黄酮(Ⅱ),木犀草素(Ⅲ),槲皮素(Ⅳ),异荭草苷(Ⅴ),异牡荆苷(Ⅵ),8-C-葡萄糖基-7-甲氧基-4′,5-二羟基黄酮(Ⅶ)。结论:Ⅰ,Ⅱ,Ⅲ,Ⅴ,Ⅵ,Ⅷ均是首次从败酱属植物中分离得到,Ⅳ是首次从白花败酱草中分离得到。

关键词：白花败酱草化学成分黄酮

白花败酱草黄酮类成分的高速逆流色谱快速制备

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中国药学杂志 2006年第13期41卷 977-979页

作者：彭金咏范国荣吴玉田第二军医大学药学院上海200433

目的应用高速逆流色谱分离纯化白花败酱草化学成分。方法利用正己烷-乙酸乙酯-甲醇-水(1∶0.6∶0.6∶1)为两相溶剂系统,主机转速800 ***-1,上相为固定相,下相为流动相,流速2.0 ***-1,检测波长254 nm,所得产物经高效液相色谱法检测,结构... 详细信息

目的应用高速逆流色谱分离纯化白花败酱草化学成分。方法利用正己烷-乙酸乙酯-甲醇-水(1∶0.6∶0.6∶1)为两相溶剂系统,主机转速800 ***-1,上相为固定相,下相为流动相,流速2.0 ***-1,检测波长254 nm,所得产物经高效液相色谱法检测,结构经MS1、H-NMR和13C-NMR鉴定。结果6 h内经一步洗脱从400 mg白花败酱草乙酸乙酯萃取物中分离得到纯度高于98%的木犀草素26 mg,5-羟基-7,4′-二甲氧基黄酮15 mg和5-羟基-7,3′,4′-三甲氧基黄酮21 mg。结论3个化合物均为首次从败酱属植物中分离得到,该分离制备法简便、快速、产物纯度高。

关键词：白花败酱草黄酮制备色谱逆流色谱

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白花败酱草化学成分的分离与结构鉴定

药学学报 2006年第3期41卷 236-240页

作者：彭金咏范国荣吴玉田第二军医大学药学院药物代谢重点实验室上海200433

目的研究白花败酱草的化学成分。方法利用溶剂萃取后进行硅胶柱和制备液相色谱分离纯化,根据理化性质和光谱数据鉴定结构。结果分离并鉴定了8个化合物:bolusanthol B(1),(2S)-5,7,2,′6′-四羟基-6,8-二异戊烯基-二氢黄酮(2),orotin in(... 详细信息

目的研究白花败酱草的化学成分。方法利用溶剂萃取后进行硅胶柱和制备液相色谱分离纯化,根据理化性质和光谱数据鉴定结构。结果分离并鉴定了8个化合物:bolusanthol B(1),(2S)-5,7,2,′6′-四羟基-6,8-二异戊烯基-二氢黄酮(2),orotin in(3),(2S)-5,7,2,′6′-四羟基-6-lavandu lyl-二氢黄酮(4),3′-异戊烯基-芹黄素(5),木犀草素(6),槲皮素(7)和洋芹素(8)。结论化合物2,4为新化合物,1,3,5为首次从败酱属植物中分离得到,6,7,8为首次从白花败酱草中分离得到。

关键词：白花败酱草异戊烯基黄酮二氢黄酮

Cell atlas of CCl_(4)-induced progressive liver fibrosis reveals stage-specific responses

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Zoological Research 2023年第3期44卷 451-466页

作者： peng-Cheng guo jing Zuo Ke-Ke Huang Guang-Yao Lai Xiao Zhang Juan An jin-Xiu Li Li Li Liang wu Yi-Ting Lin Dong-Ye Wang Jiang-Shan Xu Shi-Jie Hao Yang Wang rong-Hai Li Wen Ma yu-Mo Song Chang Liu Chuan-yu Liu Zhen Dai Yan Xu Amar Deep Sharma Michael Ott Qing Ou-Yang Feng Huo rong fan yong-Yin Li jin-Lin Hou Giacomo Volpe Long-Qi Liu Miguel A.Esteban Yi-Wei Lai State Key Laboratory for Zoonotic Diseases Key Laboratory for Zoonosis Research of Ministry of EducationInstitute of ZoonosisCollege of Veterinary MedicineJilin UniversityChangchunJilin 130062China BGI-Hangzhou HangzhouZhejiang 310012China BGI-Shenzhen ShenzhenGuangdong 518083China Key Laboratory of Biological Targeting Diagnosis Therapy and Rehabilitation of Guangdong Higher Education InstitutesFifth Affiliated Hospital of Guangzhou Medical UniversityGuangzhouGuangdong 510799China Laboratory of Integrative Biology Guangzhou Institutes of Biomedicine and HealthChinese Academy of SciencesGuangzhouGuangdong 510530China Joint School of Life Sciences Guangzhou Institutes of Biomedicine and Health and Guangzhou Medical UniversityGuangzhouGuangdong 510530China School of Life Sciences Division of Life Sciences and MedicineUniversity of Science and Technology of ChinaHefeiAnhui 230026China College of Life Sciences University of Chinese Academy of SciencesBeijing 100049China Guangzhou Institutes of Biomedicine and Health Chinese Academy of SciencesGuangzhouGuangdong 510530China Biotherapy Centre Third Affiliated Hospital of Sun Yat-sen UniversityGuangzhouGuangdong 510630China Department of Gastroenterology Hepatology and EndocrinologyHannover Medical SchoolHannover 30625Germany Department of Hepatobiliary Surgery and Liver Transplant Center General Hospital of Southern Theater CommandGuangzhouGuangdong 510010China Department of Infectious Diseases Nanfang HospitalSouthern Medical UniversityGuangdong Provincial Key Laboratory of Viral Hepatitis ResearchGuangzhouGuangdong 510515China Hematology and Cell Therapy Unit IRCCS-Istituto Tumori‘Giovanni Paolo II’Bari 70124Italy Institute of Experimental Hematology Hannover Medical SchoolHannover 30625Germany

Chronic liver injury leads to progressive liver fibrosis and ultimately cirrhosis,a major cause of morbidity and mortality ***,there are currently no effective anti-fibrotic therapies available,especially for latestage patients,which is partly attributed to the major knowledge gap regarding liver cell heterogeneity and cellspecific responses in different fibrosis *** reveal the multicellular networks regulating mammalian liver fibrosis from mild to severe phenotypes,we generated a single-nucleus transcriptomic atlas encompassing 49919nuclei corresponding to all main liver cell types at different stages of murine carbon tetrachloride(CCl_(4))-induced progressive liver *** analysis distinguished the sequential responses to injury of hepatocytes,hepatic stellate cells and endothelial ***,we reconstructed the cell-cell interactions and gene regulatory networks implicated in these *** integrative analyses uncovered previously overlooked aspects of hepatocyte proliferation exhaustion and disrupted pericentral metabolic functions,dysfunction for clearance by apoptosis of activated hepatic stellate cells,accumulation of pro-fibrotic signals,and the switch from an anti-angiogenic to a pro-angiogenic program during CCl_(4)-induced progressive liver *** dataset thus constitutes a useful resource for understanding the molecular basis of progressive liver fibrosis using a relevant animal model.

关键词： Liver fibrosis Toxicity Single-cell and single-nucleus RNA-sequencing Hepatocytes Hepatic stellate cells Angiogenesis Cell-cell interactions Gene regulatory networks

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

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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

In-beam gamma rays of CSNS Back-n characterized by black resonance filter

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Nuclear Science and Techniques 2024年第10期35卷 149-160页

作者： jin-Cheng Wang Jie Ren Wei Jiang Xi-Chao Ruan Ying-Yi Liu Hao-Lan Yang Kuo-Zhi Xu Xin-Yi Pan Qi Sun Jie Bao Han-Xiong Huang Hao-fan Bai Jiang-Bo Bai Ping Cao Qi-Ping Chen yong-Hao Chen Wen-Hao Duan An-Chuan fan Rui-Rui fan Chang-Qing Feng Min-Hao Gu Chang-Cai Han Zi-Jie Han guo-Zhu He yong-Cheng He Yang Hong Yi-Wei Hu Zhi-Jie Jiang Ling Kang Chang-Lin Lan Bo Li Feng Li Qiang Li Xiao Li Yang Li Jie Liu rong Liu Shu-Bin Liu Yi-Na Liu Guang-yuan Luan Chang-Jun Ning Yi-Jia Qiu Wen-Kai Ren Zhi-Zhou Ren Zhao-Hui Song Kang Sun Zhi-Xin Tan jing-yu Tang Sheng-Da Tang Li-Jiao Wang peng-Cheng Wang Zhao-Hui Wang Zhong-Wei Wen Xiao-Guang wu Xuan wu Ze-peng wu Cong Xia Li-Kun Xie Han Yi Tao yu yong-Ji yu guo-Hui Zhang Hang-Chang Zhang Qi-Wei Zhang Xian-peng Zhang yu-Liang Zhang Zhi-yong Zhang Mao-yuan Zhao Zhi-Hao Zhou Ke-Jun Zhu Chong Zou Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Institute of Modern Physics Fudan UniversityShanghai 200433China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China School of Nuclear Science and Technology 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 USTC Archaeometry Lab University of Science and Technology of ChinaHefei 230026China State Key Laboratory of Particle Detection and Electronics Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Northwest Institute of Nuclear Technology Xi’an 710024China University of Chinese Academy of Sciences Beijing 100049China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China Institute of Advanced Technology University of Science and Technology of ChinaHefei 230027China

The back-streaming white-neutron beamline(Back-n)of the China Spallation Neutron Source is an essential neutronresearch platform built for the study of nuclear data,neutron physics,and neutron *** types of cross-sectional neutron-reaction measurements have been performed at Back-n since early *** measurements have shown that a significant number of gamma rays can be transmitted to the experimental stations of Back-n along with the neutron *** gamma rays,commonly referred to as in-beam gamma rays,can induce a non-negligible experimental background in neutron-reaction *** the characteristics of in-beam gamma rays is important for understanding the experimental ***,measuring in-beam gamma rays is challenging because most gamma-ray detectors are sensitive to neutrons;thus,discriminating between neutron-induced signals and those from in-beam gamma rays is *** this study,we propose the use of the black resonance filter method and a CeBr_(3) scintillation detector to measure the characteristics of the in-beam gamma rays of *** types of black resonance filters,^(181)Ta,^(59)Co,^(nat)Ag,and^(nat)Cd,were used in this *** time-of-flight(TOF)technique was used to select the detector signals remaining in the absorption region of the TOF spectra,which were mainly induced by in-beam gamma *** energy distribution and flux of the in-beam gamma rays of Back-n were determined by analyzing the deposited energy spectra of the CeBr_(3) scintillation detector and using Monte Carlo *** on the results of this study,the background contributions from in-beam gamma rays in neutron-reaction measurements at Back-n can be reasonably evaluated,which is beneficial for enhancing both the experimental methodology and data analysis.

关键词： In-beam gamma rays Back-n CeBr_(3)scintillator Black filter resonance technique

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