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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

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

The effect of Asparagus officinalis polysaccharide on erythrocyte of S180 mice played in immunological reaction of lymphocytes

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The effect of Asparagus officinalis polysaccharide on erythr...

Identification of an epitope of SARS-coronavirus nucleocapsid protein

两岸三地药理学与临床药理学术会议

作者： ji Chen-feng MIN yong-cui ji yu-bin (Center of Research and Development on Life Sciences and Environmental Sciences, Harbin University of Commerce Harbin 150076, China Engineering Research Center of Natural Anticancer Drugs, Ministry of Education, Harbin 150076, China)

Objective To contrast the roles of Asparagus officinalis polysaccharide on erythrocyte of S mice played in immunological reaction of *** study the effect of Asparagus officinalis polysac- charide on the erythrocyte function of S *** Suspensions of lymphocytes (1×10/mL) and autologous plasma were respectively separated from anticoaguted whole blood of healthy mice with the lym- phocyte separation *** erythrocytes (1×10/mL) were separated from whole blood of Asparagus officinalis polysaccharide *** the autologous plasm as reactive medium,the role of erythrocytes in regulating the immunological reaction of lymphocytes was *** expression of CD25 on lympho- cytes was detected using flow *** The immunogical regulating ability of erythrocyte in mice with control groups is much lower than that of normal groups,and the immunogical regulating ability of erythrocyte in mice with Asparagus officinalis polysaccharide groups is much higher than that of control *** According to the effects of erythrocyte CD35 on the immuno-response of lymphocyte and the different of the expression of CD25 on lymphocytes,we prove that Asparagus officinalis polysac- charide can improve the erythrocyte function of S mice.

关键词： Asparagus officinalis polysaccharide erythrocyte complement receptor type 1 lymphocytes

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Cell Research 2003年第3期13卷 141-145页

作者： YING LIN,XU SHEN,RUI FU YANG,YI XUE LI,yong yong ji,YOU yu HE,MU DE SHI,WEI LU,TIE LIU SHI,jiN WANG,HONG XIA WANG,HUA LIANG jiANG,jiAN HUA SHEN,You HUA XIE,yuAN WANG,GANG PEI,BEI FEN SHEN,jiA RUI WU,BING SUNInstitute of Biochemistry and Cell Biology,Institute of Materia Medico,,Bioinformation Center,Shanghai Institutes for Biological Sciences,Chinese Academy of Sciences. Shanghai 200031,ChinaInstitute of Microbiology and Epidemiology,Institute of Basic Medical Sciences,Academy of Military Medical,Sc.imce.fi,Beijing 100071,China Institute of Biochemistry and Cell Biology Chinese Academy of Sciences Shanghai 200031 China.

The nucleocapsid(N)protein of severe acute respiratory syndrome-coronavirus(SARS-CoV)is a majorvirion structural *** this study,two epitopes(N1 and N2)of the N protein of SARS-CoV werepredicted by bioinformatics *** immnnization with two peptides,the peptides-specific antibodieswere isolated from the immunized *** further experiments demonstrated that N1 peptide-inducedpolyclonal antibodies had a high affinity to bind to *** expressed Nprotein of ***,itwas confirmed that N1 peptide-specific IgG antibodies were detectable in the sera of severe acute respiratorysyndrome(SARS)*** results indicated that an epitope of the N protein has been identified andN protein specific Abs were produced by peptide immunization,which will be useful for the study of SARS-CoV.

关键词： severe acute respiratory syndrome-coronavirus necleocapsid protein epitope polyclonal antibody antiserum.

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一种面向同步交互的软件演化过程建模方法

计算机科学 2016年第8期43卷 154-158页

作者：钱晔李彤郁涌孙吉红于倩彭琳云南农业大学基础与信息工程学院昆明650201 云南省软件工程重点实验室(云南大学) 昆明650091 云南大学软件学院昆明650091 云南省科学技术院昆明650000

全球化软件开发导致以交互方式协作开发的频率和复杂性越来越高。为了控制和规范软件演化的开发行为进而提高软件质量,文献[10]设计了软件演化过程元模型EPMM,由EPMM定义的软件演化过程模型未能形式描述其交互的特点。基于EPMM^([10])... 详细信息

全球化软件开发导致以交互方式协作开发的频率和复杂性越来越高。为了控制和规范软件演化的开发行为进而提高软件质量,文献[10]设计了软件演化过程元模型EPMM,由EPMM定义的软件演化过程模型未能形式描述其交互的特点。基于EPMM^([10])定义的软件演化过程包括全局层、过程层、活动层和任务层4个抽象层的思想,设计了软件演化过程元模型CEPMM。CEPMM定义的软件演化过程模型可形式描述同步交互的特点是在其活动层,由此提出一种基于通信系统演算(CCS)的软件演化过程活动层的建模方法,然后在Visual Studio平台下实现软件演化过程活动层可视化的建模工具CAmodel。CEPMM构建的软件演化过程活动层模型不仅可以描述并发、迭代等特点,还可以形式描述同步交互的特性,为模型进行严格的数学方法分析、推理奠定了基础。

关键词：软件演化过程的元模型通信系统演算同步交互

集胞蓝藻PCC6803含疏水亚基的NAD(P)H脱氢酶亚复合体的分离

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生物化学与生物物理学报 2003年第8期35卷 723-727页

作者：邓勇叶济宇米华玲沈允钢中国科学院上海生命科学研究院植物生理生态研究所、植物分子遗传国家重点实验室中国科学院上海生命科学研究院植物生理生态研究所、植物分子遗传国家重点实验室上海200032

利用离子交换与凝胶过滤层析 ,从n dodecylβ D maltoside(DM)处理的集胞蓝藻SynechocystisPCC6 80 3细胞粗提液中 ,首次分离到两个包含NDH疏水亚基NdhA的亚复合体。酶活性分析表明 ,分离到的NDH亚复合体具有NADPH 氮蓝四唑 (NBT)氧化... 详细信息

利用离子交换与凝胶过滤层析 ,从n dodecylβ D maltoside(DM)处理的集胞蓝藻SynechocystisPCC6 80 3细胞粗提液中 ,首次分离到两个包含NDH疏水亚基NdhA的亚复合体。酶活性分析表明 ,分离到的NDH亚复合体具有NADPH 氮蓝四唑 (NBT)氧化还原酶活性 ,以NADPH为电子供体可以还原铁氰化钾、二溴百里香醌 (DBMIB)、二氯酚靛酚 (DCPIP)、duroquinone以及UQ 0等质醌类电子受体。

关键词：集胞蓝藻 NAD(P)H脱氢酶疏水亚基

The effect of Asparagus officinalis polysaccharide on erythrocyte of S_(180) mice played in immunological reaction of lymphocytes

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沈阳药科大学学报 2008年第S1期25卷 103-103页

作者： ji Chen-feng,MIN yong-cui,ji yu-bin(Center of Research and Development on Life Sciences and Environmental Sciences,Harbin University of Commerce Harbin 150076,China Engineering Research Center of Natural Anticancer Drugs,Ministry of Education,Harbin 150076,China)

Objective To contrast the roles of Asparagus officinalis polysaccharide on erythrocyte of S180 mice played in immunological reaction of *** study the effect of Asparagus officinalis polysaccharide on the erythrocyte function of S180 *** Suspensions of lymphocytes(1×106/mL)and autologous plasma were respectively separated from anticoaguted whole blood of healthy mice with the lymphocyte separation *** erythrocytes(1×108/mL)were separated from whole blood of Asparagus officinalis polysaccharide *** the autologous plasm as reactive medium,the role of erythrocytes in regulating the immunological reaction of lymphocytes was *** expression of CD25 on lymphocytes was detected using flow *** The immunogical regulating ability of erythrocyte in mice with control groups is much lower than that of normal groups,and the immunogical regulating ability of erythrocyte in mice with Asparagus officinalis polysaccharide groups is much higher than that of control *** According to the effects of erythrocyte CD35 on the immuno-response of lymphocyte and the different of the expression of CD25 on lymphocytes,we prove that Asparagus officinalis polysaccharide can improve the erythrocyte function of S180 mice.

关键词： Asparagus officinalis polysaccharide erythrocyte complement receptor type 1 lymphocytes

Mesenteric ischemia with intrasplenic gas:A case report

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World Journal of Clinical Cases 2025年第7期13卷 52-56页

作者： Hsiang-yu Tsang Chee-Chien yong Hao-Ping Wang Department of Surgery Kaohsiung Chang Gung Memorial HospitalKaohsiung 833401Taiwan

BACKGROUND Acute mesenteric ischemia is a life-threatening *** gas is an extremely rare finding in such *** SUMMARY We report a case of a 79-year-old woman with a history of end-stage renal disease on hemodialysis for approximately 20 years,type 2 diabetes mellitus,and atrial fibrillation who presented with two days of epigastric pain.A computed tomography scan of the abdomen revealed intraperitoneal free air and significant intrasplenic *** revealed diffuse intestinal gangrene,and acute superior mesenteric ischemia was *** patient died within 24 hours owing to profound *** Intrasplenic gas is an extremely rare finding on computed tomography imaging in cases of acute mesenteric ischemia.

关键词： Acute mesenteric ischemia Spleen Hepatic portal venous gas Pneumatosis cystoides intestinalis Prognosis Case report