检索结果-南通市图书馆

Chemical Research in Chinese Universities 2006年第3期22卷 343-346页

作者： xu qing-xuan yue hao liu zhi-qiang wang yong yan cun-yu liu shu-ying Changchun Institute of Applied Chemistry Chinese Academy of Sciences Changchun 130022 P. R. China

Electrospray ionization mass spectrometry（ESI-MS） was applied simultaneously in determining norditerpenoid alkaloids from the roots of Aconitum sinomantanum Nakai （RAS） based on molecular mass information. The tandem mass spectra（ ESI-MS^n） provided the alkaloidal structural information, through which the existence of these alkaloids was further confirmed. Accordingly, six known norditerpenoid alkaloids were simultaneously determined on the basis of their ESI-MS^n spectra. Furthermore, based on the diagnostic fragmentation pathways of alkaloidal MS^n, a rapid method for direct detection and characterization of alkaloids from an ethanolic extract of RAS was described.

关键词： Electrospray ionization tandem mass spectrometry( ESI-MS^n) Norditerpenoid alkaloid Aconitum sinomantanum Nakai

Measurement of the neutron total cross section of carbon at the Back-n white neutron beam of CSNS

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Nuclear Science and Techniques 2019年第9期30卷 73-82页

作者： Xing-yan liu Yi-Wei yang Rong liu Jie Wen Zhong-Wei Wen Zi-Jie Han zhi-Zhou Ren Qi An Huai-yong Bai Jie Bao Ping Cao Qi-Ping Chen yong-hao Chen Pin-Jing Cheng Zeng-Qi Cui Rui-Rui Fan Chang-qing Feng Min-hao Gu Feng-Qin Guo Chang-Cai Han Guo-Zhu He yong-Cheng He yue-Feng He Han-Xiong Huang Wei-Ling Huang Xi-Ru Huang Xiao-Lu Ji xu-yang Ji hao-yu Jiang Wei Jiang Han-Tao Jing Ling Kang Ming-Tao Kang Bo Li Lun Li qiang Li Xiao Li yang Li yang Li shu-Bin liu Guang-yuan Luan ying-Lin Ma Chang-Jun Ning Bin-Bin Qi Jie Ren Xi-Chao Ruan Zhao-Hui Song Hong Sun Xiao-yang Sun zhi-Jia Sun zhi-Xin Tan Hong-qing Tang Jing-yu Tang Peng-Cheng wang Qi wang Tao-Feng wang yan-Feng wang Zhao-Hui wang Zheng wang qing-Biao Wu Xiao-Guang Wu xuan Wu Li-Kun Xie Han Yi Li yu Tao yu yong-Ji yu Guo-Hui Zhang Jing Zhang Lin-hao Zhang Li-ying Zhang qing-Min Zhang Qi-Wei Zhang Xian-Peng Zhang yu-Liang Zhang zhi-yong Zhang ying-Tan Zhao Liang Zhou Zu-ying Zhou Dan-yang Zhu Ke-Jun Zhu Peng Zhu Institute of Nuclear Physics and Chemistry China Academy of Engineering Physics State Key Laboratory of Particle Detection and Electronics Chinese Academy of Sciences(CAS) Department of Modern Physics University of Science and Technology of China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking University Key Laboratory of Nuclear Data China Institute of Atomic Energy Institute of High Energy Physics Chinese Academy of Sciences(CAS) Spallation Neutron Source Science Center University of South China Northwest Institute of Nuclear Technology Department of Engineering and Applied Physics University of Science and Technology of China Beihang University Xi’an Jiaotong University

To verify the performance of the neutron total cross-sectional spectrometer, the neutron total cross section of carbon is initially measured in the energy range of 1 eV to 20 MeV using the time-of-flight method. The measurement is performed at the Back-n white neutron source with a 76-m time-of-flight path using the China Spallation Neutron Source. A multilayer fast fission chamber with 235U and 238U is employed as the neutron detector. The diameter and thickness of the natural graphite sample are 70 mm and 40 mm, respectively. Signal waveforms are collected using a data acquisition system. Off-line data processing was used to obtain the neutron time-of-flight spectra and transmissions. The uncertainty of the counting statistics is generally approximately 3% for each bin in the energy range of 1–20 MeV. It is determined that the results for the neutron total cross section of carbon obtained using ^235U cells are in good agreement with the results obtained using 238U cells within limits of statistical uncertainty. Moreover, the measured total cross sections show good agreement with the broadening evaluated data.

关键词： CSNS Back-n white neutron source NTOX Neutron total cross section Carbon Multilayer fast fission chamber

SAPT:a synchrotron-based proton therapy facility in Shanghai

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Nuclear Science and Techniques 2023年第10期34卷 36-46页

作者： Man-Zhou Zhang De-Ming Li Li-Ren Shen Hai-Rong Zhang zhi-Ling Chen Han-Wen Du Ming Gu Rui Li De-Kang liu yue-Hu Pu Jun-Feng yu Jian-Feng Chen Chu Chen Chun-Long Guo hao Guo Ge-yang Jiang zhi-qiang Jiang Lin Jin Wen-Jing Li Xiu-Fang Li Ye Lin Ming liu yong-hao liu Ya-Juan liu Ming Lv qing-Ru Mi Lian-Hua Ouyang Wei-Guo Shi Hang shu Qi-Sheng Tang Kun wang zhi-Shan wang Jun Wu Xiao-Bing Wu Jia-qiang xu Wen-Zhen xu Chong-Xian Yin Cheng yu Ren-Xian yuan Qi-Bing yuan Hai-Qun Zhang Miao Zhang Wen-zhi Zhang Li-ying Zhao Wei-Min Zhou Shou-Xian Fang Xi-Dong Sun Zhen-Tang Zhao Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China Shanghai Advanced Research Institute Chinese Academy of SciencesShanghai 201204China APACTRON Particle Equipment Co. Ltd.Shanghai 201815China The Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China

Because of its excellent dose distribution,proton therapy is becoming increasingly popular in the medical application of cancer treatment.A synchrotron-based proton therapy facility was designed and constructed in *** synchrotron,beam delivery system,and other technical systems were commissioned and reached their expected *** a clinical trial of 47 patients was finished,the proton therapy facility obtained a registration certificate from the National Medical Products *** characteristics of the accelerator and treatment systems are described in this article.

关键词： Proton therapy Synchrotron Slow extraction Gantry Beam delivery system

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

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

Measurement of Br(n,γ)cross sections up to stellar s-process temperatures at the CSNS Back‑n

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Nuclear Science and Techniques 2023年第11期34卷 226-241页

作者： Gao‑Le yang Zhen‑Dong An Wei Jiang Xian‑Kai Li Wei‑Wei Qiu Zheng‑Fa Liao Zi‑yue Zhuang Xiao‑Ping Zhang Sheng‑Li Chen Chen‑Chen Guo Er‑Xi Xiao Xiao Fang Xin‑Xiang Li Xin‑Rong Hu Bing Jiang Jin‑Cheng wang Jie Ren Wen Luo zhi‑Chao Zhu hao‑yang Lan Zong‑Wei Cao xu Ma ying‑Du liu Pu‑Sen wang Yi yang Ping Su Xian‑Gai Deng Wan‑Bing He Chun‑wang Ma yu‑Ting wang zhi‑Tao Dai Peng‑Qin He Ren‑Guang Tang Tao Zhou Jing wang Han Yi yue Zhang yong‑hao Chen Rui‑Rui Fan Ke‑qing Gao qiang Li Kang Sun zhi‑Xin Tan Min‑hao Gu Han‑Tao Jing Jing‑yu Tang School of Physics and Astronomy Sun Yat-sen UniversityZhuhai 519082China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China State Key Laboratory of Lunar and Planetary Sciences Macao University of Science and TechnologyMacao 999078China CNSA Macao Center for Space Exploration and Science Macao 999078China Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China Spallation Neutron Source Science Center Dongguan 523803China School of Nuclear Science and Technology University of South ChinaHengyang 421001China Sino‑French Institute of Nuclear Engineering and Technology Sun Yat-sen UniversityZhuhai 519082China University of Chinese Academy of Sciences Beijing 100049China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China School of Materials Science and Engineering Xiangtan UniversityXiangtan 411100China Key Laboratory of Nuclear Physics and Ion‑beam Application(MOE) Institute of Modern PhysicsDepartment of Nuclear Science and TechnologyFudan UniversityShanghai 200433China Institute of Particle and Nuclear Physics Henan Normal UniversityXinxiang 453007China School of Physics Henan Normal UniversityXinxiang 453007China Shenzhen Center Cancer hospitalChinese Academy of Medical SciencesShenzhen 518100China School of Nuclear Science and Technology University of Science and Technology of ChinaHefei 230027China

The neutron capture cross sections(n,γ)of bromine were obtained using the time-of-flight technique at the Back-n facility of the China Spallation Neutron ***γ-rays originating from neutron-induced capture events were detected using four C_(6)D_(6) *** pulse-height weighting technique and double-bunch unfolding method based on Bayesian theory were used in the data *** deductions,normalization,and corrections were carefully considered to obtain reliable measurement *** multilevel R-matrix Bayesian code SAMMY was used to extract the resonance parameters in the resolved resonance region(RRR).The average cross sections in the unresolved resonance region(URR)were obtained from 10 to 400 *** experimental results were compared with data from several evaluated libraries and previous experi-ments in the RRR and *** TALYS code was used to describe the average cross sections in the *** astrophysical Maxwell average cross sections(MACSs)of ^(79,81)Br from kT=5 to 100 keV were calculated over a sufficiently wide range of neutron *** a thermal energy of kT=30 keV,the MACS value for ^(79)Br 682±68 mb was in good agreement with the KADoNiS v1.0 recommended *** contrast,the value of 293±29 mb for ^(81)Br was substantially higher than that of the evaluated database and the KADoNiS v1.0 recommended value.

关键词： Time-of-flight technique Neutron capture cross sections Maxwell average cross sections

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

Efficacy and safety of Shenyankangfu Tablet,a Chinese patent medicine,for primary glomerulonephritis:A multicenter randomized controlled trial

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Journal of Integrative Medicine 2021年第2期19卷 111-119页

作者： Jie Wu shu-wei Duan Hong-tao yang yue-yi Deng Wei Li Ya-ni He Zhao-hui Ni yong-li Zhan Shan Lin zhi-yong Guo Jun Zhu Jing-ai Fang xu-sheng liu Li-hua wang Rong wang Nian-song wang Xiao-hong Cheng Li-qun He Ping Luo Shi-ren Sun Ji-feng Sun Ai-ping Yin Geng-ru Jiang Hong-yu Chen Wen-hu liu Hong-li Lin Meng Liang Lu Ma Ming Chen Li-qun Song Jian Chen qing Zhu Chang-ying Xing yun Li Ji-ning Gao Rong-shan Li ying Li hao Zhang ying Lu Qiao-ling Zhou Jun-zhou Fu qiang He Guang-yan Cai Xiang-mei Chen Department of Nephrology Chinese People’s Liberation Army General HospitalChinese People’s Liberation Army Institute of NephrologyState Key Laboratory of Kidney Diseases(2011DAV00088)National Clinical Research Center for Kidney DiseasesBeijing 100853China Department of Nephrology First Teaching Hospital of Tianjin University of Traditional Chinese MedicineTianjin 300192China Department of Nephrology Longhua HospitalShanghai University of Traditional Chinese MedicineShanghai 200032China Department of Nephrology Shandong University of Traditional Chinese Medicine Affiliated HospitalJinan 250011.Shandong ProvinceChina Department of Nephrology Daping HospitalArmy Medical UniversityChongqing 400042China Department of Nephrology Renji HospitalShanghai Jiao Tong UniversityShanghai 200127China Department of Nephrology Guang’anmen HospitalChina Academy of Traditional Chinese Medical SciencesBeijing 100053China Department of Nephrology Tianjin Medical University General HospitalTianjin 300052China Department of Nephrology Changhai Hospital of ShanghaiNaval Medical UniversityShanghai 200433China Department of Nephrology West China HospitalChengdu 610083Sichuan ProvinceChina Department of Nephrology First Affiliated Hospital of Shanxi Medical UniversityTaiyuan 030001Shanxi ProvinceChina Department of Nephrology Guangdong Provincial Hospital of Chinese MedicineGuangzhou 510120Guangdong ProvinceChina Department of Nephrology Shanxi Medical University Second Affiliated HospitalTaiyuan 030001Shanxi ProvinceChina Department of Nephrology Shandong Provincial HospitalJinan 250021Shandong ProvinceChina Department of Nephrology and Rheumatology Affiliated Sixth People’s HospitalShanghai Jiao Tong UniversityShanghai 200233China Department of Nephrology Shaanxi Traditional Chinese Medicine HospitalXi'an 710003Shaanxi ProvinceChina Department of Nephrology Shuguang HospitalShanghai University of Traditional Chinese MedicineShanghai 200021China Department of Nephrology Jilin University Se

Background:Shenyankangfu Tablet(SYKFT)is a Chinese patent medicine that has been used widely to decrease proteinuria and the progression of chronic kidney ***:This trial compared the efficacy and safety of SYKFT,for the control of proteinuria in primary glomerulonephritis patients,against the standard drug,losartan ***,setting,participants and intervention:This was a multicenter,double-blind,randomized,controlled clinical *** glomerulonephritis patients,aged 18-70 years,with blood pressure≤140/90 mmHg,estimated glomerular filtration rate(eGFR)>45 mL/min per 1.73 ㎡,and 24-hour proteinuria level of 0.5-3.0 g,were recruited in 41 hospitals across 19 provinces in China and were randomly divided into five groups:SYKFT,losartan potassium 50 mg or 100 mg,SYKFT plus losartan potassium 50 mg or 100 *** outcome measu res:The primary outcome was change in the 24-hour proteinuria level,after 48 weeks of ***:A total of 735 participants were *** percent decline of urine protein quantification in the SYKFT group after 48 weeks was 8.78%±2.56%(P=0.006)more than that in the losartan 50 mg group,which was 0.51%±2.54%(P=1.000)less than that in the losartan 100 mg *** with the losartan potassium 50 mg group,the SYKFT plus losartan potassium 50 mg group had a 13.39%±2.49%(P<0.001)greater reduction in urine protein *** with the losartan potassium 100 mg group,the SYKFT plus losartan potassium 100 mg group had a 9.77%±2.52%(P=0.001)greater reduction in urine *** a superiority threshold of 15%,neither was statistically ***,serum creatinine and serum albumin from the baseline did not change statistically *** average change in TCM syndrome score between the patients who took SYKFT(-3.00[-6.00,-2.00])and who did not take SYKFT(-2.00[-5.00,0])was statistically significant(P=0.003).No obvious adverse reactions were observed in any ***:SYKFT decreased the proteinur

关键词： Herbal medicine,Chinese Shenyankangfu Tablet Primary glomerulonephritis Randomized controlled trial Double blind Double dummy

The first data release(DR1) of the LAMOST regular survey

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Research in Astronomy and Astrophysics 2015年第8期15卷 1095-1124页

作者： A-Li Luo yong-Heng Zhao Gang Zhao Li-Cai Deng Xiao-Wei liu Yi-Peng Jing Gang wang hao-Tong Zhang Jian-Rong Shi Xiang-Qun Cui Yao-Quan Chu Guo-Ping Li Zhong-Rui Bai yue Wu yan Cai shu-yun Cao Zi-Huang Cao Jeffrey L.Carlin Hai-yuan Chen Jian-Jun Chen Kun-Xin Chen Li Chen xue-Lei Chen Xiao-yan Chen ying Chen Norbert Christlieb Jia-Ru Chu Chen-Zhou Cui Yi-Qiao Dong Bing Du Dong-Wei Fan Lei Feng Jian-Ning Fu Peng Gao xue-Fei Gong Bo-Zhong Gu yan-Xin Guo Zhan-Wen Han Bo-Liang He Jin-Liang Hou yong-Hui Hou Wen Hou Hong-Zhuan Hu Ning-Sheng Hu Zhong-Wen Hu zhi-ying Huo Lei Jia Fang-Hua Jiang Xiang Jiang zhi-Bo Jiang Ge Jin Xiao Kong xu Kong Ya-Juan Lei Ai-Hua Li Chang-Hua Li Guang-Wei Li Hai-Ning Li Jian Li Qi Li shuang Li Sha-Sha Li Xin-Nan Li yan Li Yin-Bi Li Ye-Ping Li yuan Liang Chien-Cheng Lin Chao liu Gen-Rong liu Guan-Qun liu zhi-Gang liu Wen-zhi Lu yu Luo Yin-Dun Mao Heidi Newberg Ji-Jun Ni Zhao-Xiang Qi yong-Jun Qi Shi-Yin Shen Huo-Ming Shi Jing Song Yi-Han Song Ding-qiang Su Hong-Jun Su Zheng-Hong Tang qing-Sheng Tao yuan Tian Dan wang Da-Qi wang Feng-Fei wang Guo-Min wang Hai wang Hong-Chi wang Jian wang Jia-Ning wang Jian-Ling wang Jian-Ping wang Jun-Xian wang Lei wang Meng-Xin wang Shou-Guan wang shu-qing wang Xia wang Ya-Nan wang You wang yue-Fei wang You-Fen wang Peng Wei Ming-zhi Wei Hong Wu Ke-Fei Wu xue-Bing Wu yu-Zhong Wu Xiao-Zheng Xing Ling-Zhe xu Xin-Qi xu yan xu Tai-Sheng yan De-Hua yang Hai-Feng yang Hui-Qin yang Ming yang Zheng-Qiu Yao yong yu Hui yuan Hai-Bo yuan Hai-Long yuan Wei-Min yuan Chao Zhai En-Peng Zhang Hua-Wei Zhang Jian-Nan Zhang Li-Pin Zhang Wei Zhang yong Zhang yan-Xia Zhang Zheng-Chao Zhang Ming Zhao Fang Zhou xu Zhou Jie Zhu yong-Tian Zhu Si-Cheng Zou Fang Zuo National Astronomical Observatories Chinese Academy of Sciences Department of Astronomy Peking University Shanghai Astronomical Observatory Chinese Academy of Sciences Nanjing Institute of Astronomical Optics & Technology National Astronomical ObservatoriesChinese Academy of Sciences University of Science and Technology of China Department of Physics Applied Physics and AstronomyRensselaer Polytechnic InstituteTroyNY 12180USA Department of Physics and Astronomy Earlham CollegeRichmondIN 47374USA Universitt Heidelberg Zentrum für AstronomieLandessternwarteKnigstuhl 1269117 HeidelbergGermany Department of Astronomy Beijing Normal University yunnan Observatories Chinese Academy of Sciences Purple Mountain Observatory Chinese Academy of Sciences

The Large sky Area Multi-Object Fiber Spectroscopic Telescope（LAMOST） general survey is a spectroscopic survey that will eventually cover approximately half of the celestial sphere and collect 10 million spectra of stars, galaxies and QSOs. Objects in both the pilot survey and the first year regular survey are included in the LAMOST DR1. The pilot survey started in October 2011 and ended in June 2012, and the data have been released to the public as the LAMOST Pilot Data Release in August 2012. The regular survey started in September 2012, and completed its first year of operation in June 2013. The LAMOST DR1 includes a total of 1202 plates containing 2 955 336 spectra, of which 1 790 879 spectra have observed signalto-noise ratio（SNR） ≥ 10. All data with SNR ≥ 2 are formally released as LAMOST DR1 under the LAMOST data policy. This data release contains a total of 2 204 696 spectra, of which 1 944 329 are stellar spectra, 12 082 are galaxy spectra and 5017 are quasars. The DR1 not only includes spectra, but also three stellar catalogs with measured parameters： late A,FGK-type stars with high quality spectra（1 061 918 entries）, A-type stars（100 073 entries）, and M-type stars（121 522 entries）. This paper introduces the survey design, the observational and instrumental limitations, data reduction and analysis, and some caveats. A description of the FITS structure of spectral files and parameter catalogs is also provided.

关键词： techniques: spectroscopic survey—data release—catalog