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Cationic ordering transition in oxygen-redox layered oxide cathodes

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Carbon Energy 2024年第1期6卷 197-206页

作者： Xinyan li Ang gao Qinghua Zhang Hao Yu Pengxiang Ji Dongdong Xiao Xuefeng Wang Dong Su Xiaohui Rong Xiqian Yu Hong li Yong-sheng hu lin Gu beijing National Laboratory for Condensed Matter Physics Institute of PhysicsChinese Academy of SciencesBeijingChina College of Materials Science and Opto-Electronic Technology University of Chinese Academy of SciencesBeijingChina beijing National Center for Electron Microscopy and Laboratory of Advanced Materials School of Materials Science and EngineeringTsinghua UniversityBeijingChina beijing Advanced Innovation Center for Materials Genome engineering Huairou DivisionInstitute of PhysicsChinese Academy of SciencesBeijingChina

Understanding the structural origin of the competition between oxygen 2p and transition-metal 3d orbitals in oxygen-redox(OR)layered oxides is eminently desirable for exploring reversible and high-energy-density li/Na-ion ***,we reveal the correlation between cationic ordering transition and OR degradation in ribbon-ordered P3-Na_(0.6)li_(0.2)Mn_(0.8)O_(2) via in situ structural *** two different voltage windows,the OR capacity can be improved approximately twofold when suppressing the in-plane cationic ordering *** find that the intralayer cationic migration is promoted by electrochemical reduction from Mn^(4+)to Jahn–Teller Mn^(3+)and the concomitant NaO_(6) stacking transformation from triangular prisms to octahedra,resulting in the loss of ribbon ordering and electrochemical ***-principles calculations reveal that Mn^(4+)/Mn^(3+)charge ordering and alignment of the degenerate eg orbital induce lattice-level collective Jahn–Teller distortion,which favors intralayer Mn-ion migration and thereby accelerates OR *** findings unravel the relationship between in-plane cationic ordering and OR reversibility and highlight the importance of superstructure protection for the rational design of reversible OR-active layered oxide cathodes.

关键词： cationic ordering layered oxide cathodes oxygen redox sodium-ion batteries

A human-specific insertion promotes cell proliferation and migration by enhancing TBC1D8B expression

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Science china(life sciences) 2024年第4期67卷 765-777页

作者： hui Zhao lin-lin liu Jian Sun lian jin Hai-Bing Xie Jian-Bo li hui Xu Dong-Dong Wu Xiao-lin Zhuang Min-sheng Peng Ya-Jun Guo Wei-Zhu Qian Newton OOtecko Wei-Jie Sun liang-hu Qu Jie He Zhao-li Chen Rong liu Ce-Shi Chen Ya-Ping Zhang State Key Laboratory for Conservation and Utilization of Bio-resource School of Life SciencesSchool of Ecology and Environmental ScienceYunnan UniversityKunming 650091China School of Forensic Medicine Kunming Medical UniversityKunming 650500China academy of Biomedical engineering Kunming Medical UniversityKunming 650500China The Third Affiliated Hospital Kunming Medical UniversityKunming 650118China Key Laboratory of Animal Models and human Disease Mechanisms of the chinese academy of sciences and Yunnan Province Kunming Institute of ZoologyChinese Academy of SciencesKunming 650201China State Key Laboratory of Genetic Resources and Evolution Yunnan Laboratory of Molecular Biology of Domestic AnimalsKunming Institute of ZoologyChinese Academy of SciencesKunming 650201China The Key Laboratory of Gene engineering of the Ministry of Education State Key Laboratory for BiocontrolSun Yat-sen UniversityGuangzhou 510275China National engineering Research Center for Antibody Medicine and Shanghai Key Laboratory of Cell engineering and Antibody Shanghai 201203China Department of Thoracic Surgery Cancer Institute and HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China

human-specific insertions play important roles in human phenotypes and *** we reported a 446-bp insertion(Insert-446)in intron 11 of the TBC1D8B gene,located on chromosome X,and traced its origin to a portion of intron 6 of the EBF1 gene on chromosome ***,Insert-446 was present in the human Neanderthal and Denisovans genomes,and was fixed in humans after human-chimpanzee *** have demonstrated that Insert-446 acts as an enhancer through binding transcript factors that promotes a higher expression of human TBC1D8B gene as compared with orthologs in *** addition,over-expression TBC1D8B promoted cell proliferation and migration through“a dual finger”catalytic mechanism(Arg538 and Gln573)in the TBC domain in vitro and knockdown of TBC1D8B attenuated tumorigenesis in *** of Insert-446 prevented cell proliferation and migration in cancer and normal *** results reveal that the human-specific Insert-446 promotes cell proliferation and migration by upregulating the expression of TBC1D8B *** findings provide a significant insight into the effects of human-specific insertions on evolution.

关键词： human-specific insertion enhancer gene expression cell proliferation and migration

Tislelizumab in previously treated,locally advanced unresectable/metastatic microsatellite instability-high/mismatch repair-deficient solid tumors

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chinese Journal of Cancer Research 2024年第3期36卷 257-269页

作者： Jian li Ye Xu Aimin Zang Yunong gao Quanli gao Yanqiao Zhang Dong Wang Jianming Xu Ying Yuan Haiping Jiang Jieer Ying Chunmei Shi Yanhong Deng jing Wang Tianshu liu Yi huang Xiaoping Qian Yueyin Pan Ying Cheng sheng hu jin Wang Mengyue Shi Ke Wang Han hu lin Shen State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers Beijing Key Laboratory of Carcinogenesis and Translational ResearchDepartment of Gastrointestinal OncologyPeking University Cancer Hospital&InstituteBeijing 100142China Department of Oncology Fudan University Shanghai Cancer CenterShanghai 200032China Department of Medical Oncology Affiliated Hospital of Hebei UniversityBaoding 071000China Key Laboratory of Carcinogenesis and Translational Research(Ministry of Education/beijing) Department of GynecologyPeking University Cancer Hospital&InstituteBeijing 100142China Department of Immunotherapy Henan Cancer HospitalZhengzhou 450001China Department of Gastrointestinal Oncology Affiliated Cancer Hospital of Harbin Medical UniversityHarbin 150086China Department of Gastrointestinal Oncology Chongqing University Cancer HospitalChongqing 400030China Department of Gastrointestinal Oncology the Fifth Medical CenterChinese PLA General HospitalBeijing 100048China Department of Medical Oncology the Second Affiliated HospitalZhejiang University School of MedicineHangzhou 310009China Department of Medical Oncology the First Affiliated HospitalZhejiang University School of MedicineHangzhou 310003China Department of Medical Oncology Cancer Hospital of the University of Chinese Academy of SciencesHangzhou 310022China Department of Medical Oncology Fujian Medical University Union HospitalFuzhou 350001China Department of Oncology the Sixth Affiliated HospitalSun Yat-sen UniversityGuangzhou 510655China Department of Medical Oncology Hunan Cancer HospitalChangsha 410013China Department of Medical Oncology Zhongshan HospitalFudan UniversityShanghai 200032China Department of Immunotherapy Hubei Cancer HospitalWuhan 430079China Department of Medical Oncology the Affiliated Hospital of Nanjing University Medical SchoolNanjing 210008China Department of Medical Oncology Anhui Provincial HospitalHefei 230001China Department of Medical Oncology Jilin Cancer Hospital

Objective:The open-label,phase II RATIONALE-209 study evaluated tislelizumab(anti-programmed cell death protein 1 antibody)as a tissue-agnostic monotherapy for microsatellite instability-high(MSI-H)/mismatch repair-deficient(dMMR)***:Adults with previously treated,locally advanced unresectable or metastatic MSI-H/dMMR solid tumors were *** received tislelizumab 200 mg intravenously every 3 *** response rate(ORR;primary endpoint),duration of response(DoR),and progression-free survival(PFS)were assessed by independent review committee(Response Evaluation Criteria in Solid Tumors v1.1).Results:Eighty patients were enrolled and treated;75(93.8%)patients had measurable disease at *** had metastatic disease and received at least one prior therapy for advanced/metastatic disease(n=79;98.8%).At primary analysis(data cutoff July 8,2021;median follow-up 15.2 months),overall ORR[46.7%;95%confidence interval(95%CI),35.1−58.6;one-sided P25.1–54.6);gastric/gastroesophageal junction(n=9):55.6%(95%CI,21.2−86.3);others(n=20):60.0%(95%CI,36.1−80.9)]were significantly greater with tislelizumab vs.a prespecified historical control ORR of 10%;five(6.7%)patients had complete *** DoR,PFS,and overall survival were not reached with long-term follow-up(data cutoff December 5,2022;median follow-up 28.9 months).Tislelizumab was well tolerated with no unexpected safety ***-related adverse events(TRAEs)of grade≥3 occurred in 53.8%of patients;7.5%of patients discontinued treatment due to ***:Tislelizumab demonstrated a significant ORR improvement in patients with previously treated,locally advanced unresectable or metastatic MSI-H/dMMR tumors and was generally well tolerated.

关键词： Biomarkers DNA mismatch repair immune checkpoint inhibitors microsatellite instability phase II clinical trials programmed cell death 1 receptor

Sensitivity analysis of a methanol and power polygeneration system fueled with coke oven gas and coal gas

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Frontiers of Chemical Science and engineering 2010年第4期4卷 491-497页

作者： Guoqiang ZHANG lin gao hongguang jin Rumou lin sheng li institute of engineering thermophysics Chinese Academy of SciencesBeijing 100190China Graduate School Chinese Academy of SciencesBeijing 100190China

The sensitivity analysis of a polygeneration energy system fueled with duo fuel of coke oven gas and coal gas is performed in the study,and the focus is put on the relations among syngas composition,conversation rate and *** impacts of the system configuration together with the fuel composition on the performance are investigated and discussed from the point of cascading utilization of fuel chemical ***,the main parameters affecting the performance are derived along with the analysis of the system configuration and the syngas *** the performance is being simulated by means of the Aspen Plus process simulator of version 11.1,the variation of the performance due to the composition of syngas and the conversion rate of chemical subsystem is obtained and *** is obtained from the result that the proper conversion rate of the chemical subsystem according to the specific syngas composition results in better *** the syngas composition affects the optimal conversion rate of the chemical subsystem,the optimal point of which is around the stoichiometric composition for methanol production(CO/H_(2)=0.5).In all,the polygeneration system fueled with coke oven gas and coal gas,which can realize the reasonable conversion of syngas to power and chemical product according to the syngas composition,is a promising method for coal energy conversion and utilization.

关键词： duo fuel of coke oven gas and coal gas polygeneration of power and methanol sensitivity analysis the relation among energy utilization syngas composition and chemical conversion rate

Status of aquatic organisms resources and their environments in Yangtze River system(2017-2021)⋆

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Aquaculture and Fisheries 2024年第5期9卷 833-850页

作者： Haile Yang li Shen Yongfeng He huiwu Tian Lei gao jinming Wu Zhigang Mei Nian Wei lin Wang Tingbing Zhu Feifei hu jinling Gong Hongchun Du Xinbin Duan huatang Deng Daoqun Wang Fengyue Zhu Yunfeng li Fan Wu huijun Ru Yan Zhang Junyi li Junlin Yang Yuntao Zhou Dongdong Fang Yinping Wang Danqing lin Yanping Yang Peijie li Silei liu Jian Yang Ping Zhuang Sikai Wang Tao Zhang Gang Yang Wenbo Yang lilai Yuan Kun Cao Shuo Xu huiyuan liu Zhiqiang liang Chongrui Wang Hong li Xiping Yuan Xin Yang Yilong Fu Yanping Zhang Haixin Zhang Zhiying Tao sheng Wang Xiaoping gao Binsong jin Kemao li Guojie Wang shenglong Jian Yingqin li Chenjiang Xue Chunyun Lei Shaowei Xue Yi Sun Bin Zhu Ke Shao Xingkun hu Meihua Xiong Jun Du Bin He Tao Yan Yingying huang Yuanchao Zou Biwen Xie Yongming Wang Bin li Fei liu Yaoyao Zhang Fei Fan Zhijian Wang jing huang Haoran Gu Hailong Ge Yan Dan Yan li Shuqiao Wang Chuang Zhang Lu Zhou Xue Wang sheng Zeng Yan Xiang Xugang He Jianhui Qin Chengxing Xia Jie Hou Yifu Shi lifang gao Zhiqiang Zhu Hongbao Shen Yun Du Xuejun Duan Jiawu Xiong Deguo Yang Shaoping liu Zhaohui Ni hui Zhang Kai liu Feng Zhao Yingren li Jianwei Wang Qiwei Wei Yangtze River Fisheries Research institute Chinese Academy of Fishery SciencesWuhan430223China institute of Hydrobiology Chinese Academy of SciencesWuhan430072China Fishery Resource and Environment Research Center Chinese Academy of Fishery SciencesBeijing100141China Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization Ministry of Agriculture and Rural AffairsFreshwater Fisheries Research CenterChinese Academy of Fishery SciencesWuxi214081China East china Sea Fisheries Research institute Chinese Academy of Fishery SciencesShanghai200090China institute of Fisheries engineering Chinese Academy of Fishery SciencesBeijing100141China hunan Fisheries Science institute Changsha410153China Jiangxi Fisheries Research institute Nanchang330039China Jiujiang academy of Fishery sciences Jiujiang332000China School of life sciences Nanchang UniversityNanchang330031China Qinghai Provincial Fishery Technology Extension Center Xining810012China Yunnan academy of Fishery sciences Kunming650111China institute of Hydroecology Ministry of Water Resources and Chinese Academy of SciencesWuhan430079China Fisheries institute Sichuan Academy of Agricultural SciencesChengdu611731China School of life sciences Neijiang Normal UniversityNeijiang641100China School of life sciences Southwest UniversityChongqing400715China Chongqing Fishery sciences Research institute Chongqing401120China Guizhou Fisheries Research institute Guiyang550025China College of Fisheries Huazhong Agricultural UniversityWuhan430072China hubei Fisheries Science Research institute Wuhan430070China Shaanxi Fisheries Research institute Xi’an710086China Innovation academy for Precision Measurement Science and Technology Chinese Academy of SciencesWuhan430077China Nanjing institute of Geography and limnology Chinese Academy of SciencesNanjing210008China Central South Inventory and Planning institute of State Forestry and Grassland Administration Changsha410014China

The Yangtze River is the mother river of *** promote the aquatic ecosystem protection of the great river,the Project of Yangtze Fisheries Resources and Environment Investigation(2017-2021)supported by the Ministry of Agriculture and Rural Affairs,*** carried out by 24 institutes and universities that located in the Yangtze River basin surveys the status of(1)fish species composition and spatial distribution,(2)current fish abundance,(3)endangered fishes,(4)Yangtze finless porpoise,(5)aquatic eco-environments,(6)water-level fluctuation areas,(7)capture fisheries and recreational fisheries of the Yangtze River mainstream and 10 of its main tributaries,including Yalong River,Heng River,Min River(including Dadu River),Chishui River,Tuo River,Jialing River,Wu River,Han River,Dongting Lake and Poyang *** results showed that there were 443 fish species(belonging to 163 genus,37 families,and 18 orders)before 2017,but only 323 fish species(including 15 new recorded exotic species)were recorded in the project of *** them,Cyprinus carpio,Carassius auratus,Hypophthalmichthys molitrix,Pelteobagrus fulvidraco,Coilia brachygnathus,Silurus asotus,Saurogobio dabryi,Ctenopharyngodon idellus,Pelteobagrus nitidus,Hemiculter leucisculus,Siniperca chuatsi,Coreius heterodon,Culter alburnus,Parabramis pekinensis,and Aristichthys nobilis were the dominant species across the whole Yangtze River *** is estimated that there were 886 million individuals weighing 124.8 million kg,merely equivalent to 27.3%of the resources in 1950s,30.9%of the resources in 1960s,or 58.7%of the resources in *** the new list of protected fishes that recorded in the Yangtze River system,only 15 of 29 were collected in this project of *** gladius has been affirmed to be Extinct by International Union for Conservation of Nature(IUCN).The wild individuals of Tenualosa reevesii and Luciobrama macrocephalus have disappeared for many years and maybe have been extinct

关键词： Fishes Yangtze finless porpoise Resources Aquatic ecosystem Fisheries Background investigation Yangtze river system

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

全氟异丁腈(C_(4)F_(7)N)混合气体研究进展综述

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沈阳工业大学学报 2024年第5期46卷 541-556页

作者：林莘陈圣高克利张佳李爽沈阳工业大学电气工程学院辽宁沈阳110870 中国电力科学研究院有限公司北京100192 国网甘肃省电力公司电力科学研究院甘肃兰州730070 国网辽宁省电力有限公司电力科学研究院辽宁沈阳110055

全氟异丁腈(C_(4)F_(7)N)作为一种潜在SF 6替代气体,近年来备受电力行业关注。介绍了SF 6环保替代技术路线和发展现状,归纳了C_(4)F_(7)N混合气体的放电参数测量和流注放电仿真研究进展,分析了气隙、沿面绝缘以及局部放电性能,剖析了C_(... 详细信息

全氟异丁腈(C_(4)F_(7)N)作为一种潜在SF 6替代气体,近年来备受电力行业关注。介绍了SF 6环保替代技术路线和发展现状,归纳了C_(4)F_(7)N混合气体的放电参数测量和流注放电仿真研究进展,分析了气隙、沿面绝缘以及局部放电性能,剖析了C_(4)F_(7)N混合气体的灭弧性能、放电后的分解产物特性以及与固体材料的相容性,并概述了其应用情况,总结了C_(4)F_(7)N混合气体替代SF_(6)气体存在的问题,提出了未来需要研究和关注的重点。

关键词： C_(4)F_(7)N混合气体绝缘性能气体放电灭弧性能放电分解

聚醚胺-230处治膨胀土的膨胀-压缩-收缩试验

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中国公路学报 2024年第6期37卷 111-121页

作者：邱煜卢正颜廷舟李剑丁新胜胡海翔姚海林中国科学院武汉岩土力学研究所岩土力学与工程国家重点实验室湖北武汉430071 中国科学院大学北京100049 环境岩土工程湖北省重点实验室湖北武汉430071 湖北省交通规划设计院股份有限公司湖北武汉430051 中能建葛洲坝轨道交通建设有限公司广东深圳518116

基于高效、快速、大面积处治膨胀土的工程需求,以聚醚胺-230作为水溶性膨胀土稳定剂并成功实现对膨胀土的快速处治。模拟常规路基施工中配制含水率后的压实填筑方法,讨论聚醚胺水溶液代替水按照掺入配比的方法处治膨胀土的效果与土壤特... 详细信息

基于高效、快速、大面积处治膨胀土的工程需求,以聚醚胺-230作为水溶性膨胀土稳定剂并成功实现对膨胀土的快速处治。模拟常规路基施工中配制含水率后的压实填筑方法,讨论聚醚胺水溶液代替水按照掺入配比的方法处治膨胀土的效果与土壤特性变化。通过膨胀、固结与收缩试验比较了膨胀土与不同聚醚胺-膨胀土质量比对应处治土的膨胀、压缩与收缩特性。结果表明:聚醚胺的迅速吸附能抑制并调控膨胀土的膨胀与收缩劣害性,同时使压实处治土展现出土壤结构的强化特性。处治土的膨胀、压缩和收缩指标均显著降低;样品制备为干密度1.62 g·cm^(-3)时,膨胀土可被处治为低膨胀性、低收缩性、中压缩性的处治土。基于吸附机理,聚醚胺的掺入量主要影响着处治效果,但存在处治极限即无法完全抑制膨胀与收缩特性。主要处治机理通过对扫描电子显微镜图像与膨胀土中黏粒部分的X-衍射分析进行表征,干燥的提取黏粒中蒙皂石层间距1.49 nm变化为处治后的1.36 nm,可解释为聚醚胺的插层效应导致蒙皂石矿物层间的离子水化受到抑制。聚醚胺单层平铺吸附于蒙皂石矿物层间,层间钙离子无法水化至2层水分子以上扩大层间距。土壤颗粒表面水敏性显著降低,土壤微观结构图像直观地揭示了聚醚胺在膨胀土中的吸附导致的水化抑制与土壤结构强化效应。

关键词：路基工程膨胀土试验研究稳定剂膨胀压缩收缩聚醚胺-230

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