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气相中Fe^(2.)和H_2._2.用生成OH自由基的理论研究

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化学学报 2003年第12期61卷 1934-1938页

作者：赵红梅孙成科刘鲲李宗和北京师范大学化学系

利用B3LYP方法 ,在 6 3 1.G 基组下研究了气相中Fe2.+与H2.O2.作用生成OH自由基的反应途径 ,探讨了铁离子对生成羟基自由基所起的作用 .结果表明反应的途径为 :Fe2.+与H2.O2.首先形成中间体 (FeO2.H2.) 2.+,然后通过O—O键的断裂生成... 详细信息

利用B3LYP方法 ,在 6 3 1.G 基组下研究了气相中Fe2.+与H2.O2.作用生成OH自由基的反应途径 ,探讨了铁离子对生成羟基自由基所起的作用 .结果表明反应的途径为 :Fe2.+与H2.O2.首先形成中间体 (FeO2.H2.) 2.+,然后通过O—O键的断裂生成中间体 (HOFeOH) 2.+,再断Fe—OH键生成羟基自由基 .Fe2.+和H2.O2.的电荷强烈相互作用以及Fe2.+的d轨道上的电子促进H2.O2.中的O—O键断裂。

关键词：过氧化氢 Fe^2. OH自由基气相自由基反应铁离子羟基自由基

CEPC Technical Design Report

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Radiation Detection Technology and Methods 2024年第1期8卷 I0003-I0016,1-1091页

作者： Waleed Abdallah Tiago Carlos Adorno de Freitas Konstantin Afanaciev Shakeel Ahmad Ijaz Ahmed Xiaocong Ai Abid Aleem Wolfgang Altmannshofer Fabio Alves Weiming An Rui An Daniele Paolo Anderle Stefan Antusch Yasuo Arai Andrej Arbuzov Abdesslam Arhrib Mustafa Ashry Sha Bai Yu Bai Yang Bai Vipul Bairathi Csaba Balazs Philip Bambade Yong Ban Tripamo Bandyopadhyay Shou-Shan Bao Desmond P.Barber Ayse Bat Varvara Batozskaya Subash Chandra Behera Alexander Belyaev Michele Bertucci Xiao-Jun Bi Yuanjie Bi Tianjian Bian Fabrizio Bianchi Thomas Biekotter Michela Biglietti Shalva Bilanishvili Deng Binglin Denis Bodrov Anton Bogomyagkov Serge Bondarenko Stewart Boogert Maarten Boonekamp Marcello Borri Angelo Bosotti Vincent Boudry Mohammed Boukidi Igor Boyko Ivanka Bozovic Giuseppe Bozzi Jean-Claude Brient Anastasiia Budzinskaya Masroor Bukhari Vladimir Bytev Giacomo Cacciapaglia Hua Cai Wenyong Cai Wujun Cai Yijian Cai Yizhou Cai Yuchen Cai Haiying Cai Huacheng Cai Lorenzo Calibbi Junsong Cang Guofu Cao Jianshe Cao Antoine Chance Xuejun Chang Yue Chang Zhe Chang Xinyuan Chang Wei Chao Auttakit Chatrabhuti Yimin Che Yuzhi Che Bin Chen Danping Chen Fuqing Chen Fusan Chen Gang Chen Guoming Chen Hua-Xing Chen Huirun Chen Jinhui Chen Ji-Yuan Chen Kai Chen Mali Chen Mingjun Chen Mingshui Chen Ning Chen Shanhong Chen Shanzhen Chen Shao-Long Chen Shaomin Chen Shiqiang Chen Tianlu Chen Wei Chen Xiang Chen Xiaoyu Chen Xin Chen Xun Chen Xurong Chen Ye Chen Ying Chen Yukai Chen Zelin Chen Zilin Chen Gang Chen Boping Chen Chunhui Chen Hok Chuen Cheng Huajie Cheng Shan Cheng Tongguang Cheng Yunlong Chi Pietro Chimenti Wen Han Chiu Guk Cho Ming-Chung Chu Xiaotong Chu Ziliang Chu Guglielmo Coloretti Andreas Crivellin Hanhua Cui Xiaohao Cui zhaoyuan Cui Brunella D'Anzi ling-Yun Dai Xinchen Dai Xuwen Dai Antonio De Maria Nicola De Filippis Christophe De La Taille Francesca De Mori Chiara De Sio Elisa Del Core Shuangxue Deng Wei-Tian Deng Zhi Deng Ziyan Deng Bhupal Dev Tang Dewen Biagio Di Micco Ran Ding Siqin Dingl Yadong Ding Haiyi Dong Jianin AGH university of Science and Technology Faculty of Physics and Applied Computer ScienceKrakow Anhui university HefeiAnhui Applied Physics {1. Federal Urdu University of ArtsScience and TechnologyIslamabad Banaras Hindu university Institute of ScienceVaranasi Bandirma Onyedi Eylul university Bandirma Beihang university Beijing beijing Computational Science Research Center Beijing beijing Conveyi LTD Beijing beijing Glass Research Institute Co. LtdBeijing beijing Institute of Technology Beijing beijing {1. {2. Beijing Brown university ProvidenceRI Budker Institute of Nuclear Physics Novosibirsk Cadi Ayyad university Laboratory of Fundamental and Applied PhysicsPolydisciplinary FacultyMarrakech Cairo university Giza Center for Theory and Computation National Tsing Hua UniversityHsinchu Central china {1. {2. WuhanHubei Central South university ChangshaHunan Centro de Fisica Teorica de Particulas Universidade Tecnica de LisboaLisboa Chengdu KaitengSifang Digital Radio&TV Equipment Co. LtdChengduSichuan china academy of engineering physics MianyangSichuan china building materials academy Beijing china Center of Advanced Science and Technology Beijing china Institute of Atomic Energy Beijing china Ji{1.ang university HangzhouZhejiang china Nuclear Instrument CO. LTDBeijing china {1. of Geosciences Beijing china {1. of Geosciences WuhanHubei china {1. of Mining and Technology XuzhouJiangsu china West {1. {2. NanchongSichuan Chongqing university Department of PhysicsChongqing Chulalongkorn university Bangkok City university of Hong Kong Department of PhysicsHong Kong Cockcroft Institute Daresbury Cornell university IthacaNY CPPM(AMU/IPhU&CNRS/INP) Marseille Dalian Minzu {1. DalianLiaoning Dalian {1. of Technology Department of PhysicsDalian Deutsches Elektronen-Synchrotron DESY Hamburg Dzhelepov Laboratory of Nuclear Problems of Joint Institute for Nuclear Research(DLNP JINR) Dubna East china {1. Of Science And Technol

The Circular Electron Positron Collider(CEPC)is a large scientific project initiated and hosted by{1.,fostered through extensive collaboration with international *** complex comprises four accelerators:a 30 GeV linac,a 1.1.GeV Damping Ring,a Booster capable of achieving energies up to 1.0 GeV,and a Collider operating at varying energy modes(Z,W,H,and tt).The linac and Damping Ring are situated on the surface,while the subterranean Booster and Collider are housed in a 1.0 km circumference underground tunnel,strategically accommodating future expansion with provisions for a potential Super Proton Proton Collider(SPPC).The CEPC primarily serves as a Higgs *** its baseline design with synchrotron radiation(SR)power of 30 MW per beam,it can achieve a luminosity of 5×1.^(34)cm^(-2.s^(-1.per interaction point(IP),resulting in an integrated luminosity of 1. ab^(-1.for two IPs over a decade,producing 2.6 million Higgs *** the SR power to 50 MW per beam expands the CEPC's capability to generate 4.3 million Higgs bosons,facilitating precise measurements of Higgs coupling at sub-percent levels,exceeding the precision expected from the HL-LHC by an order of *** Technical Design Report(TDR)follows the Preliminary Conceptual Design Report(Pre-CDR,2.1.)and the Conceptual Design Report(CDR,2.1.),comprehensively detailing the machine's layout,performance metrics,physical design and analysis,technical systems design,R&D and prototyping efforts,and associated civil engineering ***,it includes a cost estimate and a preliminary construction timeline,establishing a framework for forthcoming engineering design phase and site selection *** is anticipated to begin around 2.2.-2.2.,pending government approval,with an estimated duration of 8 *** commencement of experiments and data collection could potentially be initiated in the mid-2.30s.

关键词： initiated exceeding precise

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异氰酸光解的动态学研究

化学学报 2002年第4期60卷 600-605页

作者：赵丽刘鲲戴年珍李宗和北京师范大学化学系北京100875

在异氰酸光解势能面研究的基础上 ,计算了不同电子态势能面交叉点S1.T1.S1.T1.态 -态积累跃迁速率kS1.→T1.,S1.S0 处S1.S0 的跃迁速率kS1.→S0 ,结果表明 ,在交叉点处态 -态跃迁速率非常大 ,可以认为高能态在交叉点可以直接跃迁到... 详细信息

在异氰酸光解势能面研究的基础上 ,计算了不同电子态势能面交叉点S1.T1.S1.T1.态 -态积累跃迁速率kS1.→T1.,S1.S0 处S1.S0 的跃迁速率kS1.→S0 ,结果表明 ,在交叉点处态 -态跃迁速率非常大 ,可以认为高能态在交叉点可以直接跃迁到低能态 .据此我们又根据单分子微正则过渡态理论计算了不同光解波长下S1.和T1.的光解反应速率k反S1.(E)和kT1.(E)和S1.反 -顺异构化的反应速率 .在光解波长为 2.30nm时 ,kT1./kS1.=9 4 8,与实验值为 5相接近 ;在低能时kT1.>k反S1.,获得了和实验相一致的结果 .

关键词：异氰酸光解动态学研究态-态积累跃迁几率光解反应速率异氰酸

Azvudine is a thymus-homing anti-SARS-CoV-2.drug effective in treating COVID-1. patients

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Signal Transduction and Targeted Therapy 2022年第1期7卷 228-242页

作者： Jin-Lan Zhang Yu-Huan li Lu-Lu Wang Hong-Qi liu Shuai-Yao Lu Yong liu Ke li Bin liu Su-Yun li Feng-Min Shao kun Wang Ning Sheng Rui li Jin-Jin Cui Pei-Chun sun Chun-Xia Ma Bo Zhu Zhe Wang Yuan-Hao Wan Shi-Shan Yu Yongsheng Che Chao-Yang Wang Chen Wang Qiangqian Zhang li-Min zhao Xiao-Zhong Peng Zhenshun Cheng Jun-Biao Chang Jian-Dong Jiang State Key Laboratory of Bioactive Substance and Function of Natural Medicines Institute of Materia MedicaChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100050China Institute of Medicinal Biotechnology Chinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100050China Institute of Medical Biology Chinese Academy of Medical Science and Peking Union Medical CollegeKunming 650031 YunnanChina Genuine Biotech.Inc. Pingdingshan 467000 HenanChina department of Respiratory Medicine Zhongnan Hospital of Wuhan UniversityWuhan Research Center for Infectious Diseases and CancerWuhan 430071 HubeiChina The First Affiliated Hospital of Henan {1. of Chinese Medicine Zhengzhou 450000 HenanChina department of Internal Medicine Henan Provincial Peoples HospitalZhengzhou 450003 HenanChina Henan Key Laboratory of Organic Functional Molecule and Drug Innovation School of Chemistry and Chemical EngineeringHenan Normal UniversityXinxiang 453007 HenanChina National Clinical Research Center for Respiratory Diseases Chinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100005China School of chemistry Zhengzhou UniversityZhengzhou 450001 HenanChina

Azvudine(FNC)is a nucleoside analog that inhibits HIV-1.RNA-dependent RNA polymerase(RdRp).Recently,we discovered FNC an agent against SARS-CoV-2.and have taken it into Phase III trial for COVID-1. *** monophosphate analog inhibited SARS-CoV-2.and HCoV-OC43 coronavirus with an EC_(50) between 1.2.and 4.3 μM,depending on viruses or cells,and selective index(SI)in 1.-83 *** administration of FNC in rats revealed a substantial thymus-homing feature,with FNC triphosphate(the active form)concentrated in the thymus and peripheral blood mononuclear cells(PBMC).Treating SARS-CoV-2.infected rhesus macaques with FNC(0.07 mg/kg, qd,orally)reduced viral load,recuperated the thymus,improved lymphocyte profiles,alleviated in flammation and orga n damage,and lessened grou nd・glass opacities in chest *** gle-cell seque ncing suggested the promotion of thymus function by FNC.A randomized,single-arm clinical trial of FNC on compassionate use(n=31.showed that oral FNC(5 mg,qd)cured all COVID-1. patients,with 1.0%viral ribonucleic acid negative conversion in 3.2.±2.2. days(range:1.9 days)and 1.0%hospital discharge rate in 9.00±4.93 days(range:2.2. days).The side-effect of FNC is minor and transient dizziness and nausea in 1..1.0}(5/31.***,FNC might cure COVID-1. through its anti-SARS-CoV-2.activity concentrated in the thymus,followed by promoted immunity.

关键词： patients inhibited concentrated

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心绞痛牵涉痛与穴位敏化的关系

针刺研究 2018年第5期43卷 277-284页

作者：施静王健王渊刘坤付勇孙建华赵吉平邵晓梅冯斯峰杨有为李杰曹乾安何勋刘梅芳陈璐崔翔吴江昀吴媛媛高昕妍朱兵云南省中医医院针灸科昆明650000 山东中医药大学针灸推拿学院济南250355 陕西中医药大学针药结合创新研究中心陕西咸阳712046 中国中医科学院针灸研究所北京100700 江西中医药大学附属医院针灸一科南昌330006 江苏省中医院针灸康复科南京210029 北京中医药大学东直门医院针灸科北京100700 浙江中医药大学第三医院杭州310053

目的:观察冠心病稳定型心绞痛牵涉痛分布区域与穴位的关系,并结合动物实验探讨局部敏化出现的规律。方法:临床研究部分,观察1.046例冠心病稳定型心绞痛患者外周压痛敏感部位、局部皮肤形态异常改变,并测量了77位患者疼痛阈值的变化。动... 详细信息

目的:观察冠心病稳定型心绞痛牵涉痛分布区域与穴位的关系,并结合动物实验探讨局部敏化出现的规律。方法:临床研究部分,观察1.046例冠心病稳定型心绞痛患者外周压痛敏感部位、局部皮肤形态异常改变,并测量了77位患者疼痛阈值的变化。动物实验部分,以SD大鼠冠状动脉左前降支结扎4h为心肌缺血模型组(n=1.),以假手术为对照组(n=4),分别用在自然光下拍摄观察和活体荧光成像的方法,记录大鼠尾静脉注射Evans Blue后体表出现蓝染的部位,并检测痛阈变化。结果:心绞痛患者压痛部位以及皮肤局部组织结构的改变多分布在左侧胸前区、背部、肩部、上肢尺侧部;右侧也有一定数量的分布。压痛点出现在穴位上、穴位附近和穴位以外。心肌缺血的大鼠模型出现类似的变化。结论:心脏发生缺血性病变时,其相应节段(T 1.T 5)神经支配皮节区域发生规律性的牵涉性的"敏化"反应,这些敏感度改变的部位与"穴位"形成有关。

关键词：心绞痛牵涉痛穴位敏化机械痛阈

The short-term efficacy of icotinib on the treatment of advanced non-small-cell lung cancer

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The Chinese-German Journal of Clinical Oncology 2014年第1期13卷 1-5页

作者： Jianing Jiang Cong liu {1. Deng Jinbo {2. Man li Jinghua sun li li liying Ban Xiuhua sun Oncology department of The Second Hospital of Da{1.an Medical university Oncology department of Lvshunkouqu People's Hospital of Da{1.an Oncology department of The First Hospital of Da{1.an Medical university

Objective： The aim of the study was, （1. to observe the short-term efficacy and adverse reactions of icotinib hydrochloride on the treatment of advanced non-small cell lung cancer （NSCLC）; （2. to explore whether there is difference in the efficacy of icotinib hydrochloride among the subgroups of sex, age, smoking history, classification of CEA, histological type, multi-{1.ne treatment and PS score. Methods： The study was conducted to collect 1.8 patients taking icotinib hydrochloride with advanced non-small cell lung cancer in hospitals of Da{1.an （china） from September 1.t 2.1. to June 1.th 2.1.0} All patients had taken icotinib hydrochloride （1.0} mg three times a day） until the disease was progressed or the adverse reactions could not be tolerated. During the period of taking it, other anti-tumor treatments were forbidden. We observed the symptoms, such as cough, short breath, hemoptysis, pain. The objective efficacy was evaluated by RECIST criteria, and the adverse reactions related to the treatment was assessed on the basis of NCl-CTC 3.0. Results： Of all patients, CR was 1.（0.7%）, PR was 59 （42.8%）, SD was 37 （2..8%）, PD was 41.（2..7%）. And ORR was 43.5% （60/1.8）, DCR 70.3% （97/1.8）. The DCR of females was 83.5% （71.85） versus 49.1. （2./53） of males. The difference of ORR and DCR between the two subgroups had statistical significance （X2.= 8.065, P = 0.05; X2.= 1..577, P = 0.000）. The difference of ORR and DCR between the subgroups of patients after or before 70 years old had no statistical significance. The difference of ORR and DCR between the subgroups of smoking and non-smoking had statistical significance （X2.= 8.492. X2.= 1..602.. The difference of ORR and DCR between the CEA subgroups had statistical significance （X2.= 1..1.1. X2.= 1..1.0）, showed 81.patients with abnormal CEA before the treatment with ORR 56.8.0% （46/81., DCR 81.5% （66/81.; 57 patients of normal CEA before the treatment with ORR 2..6% （1./57）, DCR 52.6% （30/57）. The 36 patients （2..1.） usi

关键词： non-small-cell lung cancer (NSCLC) icotinib hydrochloride efficacy

Electron-ion collider in{1.

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Frontiers of physics 2021年第6期16卷 1-78页

作者： Daniele PAnderle Valerio Bertone Xu Cao Lei Chang Ningbo Chang Gu Chen Xurong Chen Zhuojun Chen Zhufang Cui lingyun Dai Weitian Deng Minghui Ding Xu Feng Chang Gong Longcheng Gui Feng-kun Guo Chengdong Han Jun He Tie-Jiun Hou Hongxia Huang Yin Huang KrešImir KumeričKi LPKaptari Demin li Hengne li Minxiang li Xueqian li Yutie liang Zuotang liang Chen liu Chuan liu Guoming liu Jie liu liuming liu Xiang liu Tianbo liu Xiaofeng Luo Zhun Lyu Boqiang Ma Fu Ma Jianping Ma Yugang Ma lijun Mao Cédric Mezrag HervéMoutarde Jialun Ping Sixue Qin Hang Ren Craig DRoberts Juan Rojo Guodong Shen Chao Shi Qintao Song Hao sun PawełSznajder Enke Wang Fan Wang Qian Wang Rong Wang Ruiru Wang Taofeng Wang Wei Wang Xiaoyu Wang Xiaoyun Wang Jiajun Wu Xinggang Wu Lei Xia Bowen Xiao Guoqing Xiao Ju-Jun Xie Yaping Xie Hongxi Xing Hushan Xu Nu Xu Shusheng Xu Mengshi Yan Wenbiao Yan Wencheng Yan Xinhu Yan Jiancheng Yang Yi-Bo Yang Zhi Yang Deliang Yao Zhihong Ye Peilin Yin C-PYuan Wenlong Zhan Jianhui Zhang Jinlong Zhang Pengming Zhang Yifei Zhang Chao-Hsi Chang Zhenyu Zhang Hongwei zhao Kuang-Ta Chao Qiang zhao Yuxiang zhao Zhengguo zhao liang Zheng Jian Zhou Xiang Zhou Xiaorong Zhou Bingsong Zou liping Zou Guangdong Provincial Key Laboratory of Nuclear Science Institute of Quantum MatterSouth China Normal UniversityGuangzhou 510006China IRFU CEAUniversitéParis-SaclayF-91191 Gif-sur-YvetteFrance Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China university of Chinese Academy of Sciences Beijing 100049China Nankai university Tianjin 300071China Xinyang normal {1. Xinyang 464000China School of Physics and Materials Science Guangzhou UniversityGuangzhou 510006China Hunan university Changsha 410082China Nanjing university Nanjing 210093China Huazhong university of Science and Technology Wuhan 430074China European Centre for Theoretical Studies in Nuclear Physics and Related Areas(ECT*)and Fondazione Bruno Kessler Villa TambosiStrada delle Tabarelle 286I-38123 Villazzano(TN)Italy School of Physics Peking UniversityBeijing 100871China Hunan normal {1. Changsha 410081China Institute of Theoretical Physics Chinese Academy of SciencesBeijing 100190China Nanjing normal {1. Nanjing 210023China department of Physics College of SciencesNortheastern UniversityShenyang 110819China Southwest Jiaotong university Chengdu 610000China department of Physics Faculty of ScienceUniversity of ZagrebBijenička c.3210000 ZagrebCroatia Bogoliubov Laboratory of Theoretical Physics Joint Institute for Nuclear ResearchDubna 141980Russia School of Physics and Microelectronics Zhengzhou UniversityZhengzhou 450001China Lanzhou university Lanzhou 730000China Key Laboratory of Particle Physics and Particle Irradiation(MOE) Shandong UniversityQingdao 266237China Key Laboratory of Quark and Lepton Physics(MOE)and Institute of Particle Physics Central China Normal UniversityWuhan 430079China School of Physics Southeast UniversityNanjing 211189China Key Laboratory of Nuclear Physics and Ion-beam Application(MOE) Institute of Modern PhysicsFudan UniversityShanghai 200433China Shanghai Institute of Applied Physics Chinese Academy of SciencesShanghai 201800China Depa

Lepton scattering is an established ideal tool for studying inner structure of small particles such as nucleons as well as *** a future high energy nuclear physics project,an Electron-ion collider in china(EicC)has been *** will be constructed based on an upgraded heavy-ion accelerator,High Intensity heavy-ion Accelerator Facility(HIAF)which is currently under construction,together with a new electron *** proposed collider will provide highly polarized electrons(with a po-larization of 80%)and protons(with a polarization of 70%)with variable center of mass energies from 1. to 2. GeV and the luminosity of(2.3)×1.33 cm^(−2.·s^(−1..Polarized deuterons and Helium-3,as well as unpolarized ion beams from Carbon to Uranium,will be also available at the *** main foci of the EicC will be precision measurements of the structure of the nucleon in the sea quark region,including 3D tomography of nucleon;the partonic structure of nuclei and the parton interaction with the nuclear environment;the exotic states,especially those with heavy flavor quark *** addition,issues fundamental to understanding the origin of mass could be addressed by measurements of heavy quarkonia near-threshold production at the *** order to achieve the above-mentioned physics goals,a hermetical detector system will be constructed with cutting-edge *** document is the result of collective contributions and valuable inputs from experts across the *** EicC physics program complements the ongoing scientific programs at the Jefferson Laboratory and the future EIC project in the United *** success of this project will also advance both nuclear and particle physics as well as accelerator and detector technology in china.

关键词： electron ion collider nucleon structure nucleon mass exotic hadronic states quantum chromodynamics 3D-tomography helicity transverse momentum dependent parton distribution generalized parton distribution energy recovery linac polarization spin rotator

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基于反角白光中子源次级质子的探测器标定

物理学报 2021年第8期70卷 28-36页

作者：蒋伟江浩雨易晗樊瑞睿崔增琪孙康张国辉唐靖宇孙志嘉宁常军高可庆安琪白怀勇鲍杰鲍煜曹平陈昊磊陈琪萍陈永浩陈裕凯陈朕封常青顾旻皓韩长材韩子杰贺国珠何泳成洪杨黄翰雄黄蔚玲黄锡汝季筱璐吉旭阳姜智杰敬罕涛康玲康明涛李波李超李嘉雯李论李强李晓李样刘荣刘树彬刘星言栾广源穆奇丽齐斌斌任杰任智洲阮锡超宋朝晖宋英鹏孙虹孙晓阳谭志新唐洪庆唐新懿田斌斌王丽娇王鹏程王琦王涛峰王朝辉文杰温中伟吴青彪吴晓光吴煊解立坤羊奕伟于莉余滔于永积张林浩张奇玮张显鹏张玉亮张志永赵豫斌周路平周祖英朱丹阳朱科军朱鹏中国科学院高能物理研究所北京100049 散裂中子源科学中心东莞523803 北京大学物理学院核物理与核技术国家重点实验室北京100871 核探测与核电子学国家重点实验室中国科学院大学北京100049 中国科学技术大学近代物理系合肥230026 中国原子能科学研究院核数据重点实验室北京102413 中国工程物理研究院核物理与化学研究所绵阳621900 西北核技术研究院西安710024 中国科学技术大学工程与应用物理系合肥230026 北京航空航天大学物理学院北京100083

目前国内外的质子标定终端较少,且普遍为单能质子束流.基于中国散裂中子源的反角白光中子源的eV—2.0 MeV中子能量区间的白光中子束流,以及中子与氢的~1.(n, el)反应,可以获得宽能谱的能量连续次级质子.利用1.GSps采样率、1.0}bit的波形... 详细信息

目前国内外的质子标定终端较少,且普遍为单能质子束流.基于中国散裂中子源的反角白光中子源的eV—2.0 MeV中子能量区间的白光中子束流,以及中子与氢的~1.(n, el)反应,可以获得宽能谱的能量连续次级质子.利用1.GSps采样率、1.0}bit的波形数字化获取系统采集探测器输出波形信号,通过对波形信号的分析,得到中子及反冲质子的飞行时间,进而得到反冲质子的动能.利用该方法得到的质子,为探测器质子标定等研究提供了新的研究平台.在该研究平台已经开展了带电粒子望远镜的标定实验.研究了CsI (Tl)探测器不同的信号读出方式对望远镜的DE-E二维谱、幅度-质子动能二维谱等粒子鉴别方法得到的粒子鉴别的效果,得到了较优的探测器信号读出方案.该研究为带电粒子望远镜的建设提供了实验依据,也说明了基于反角白光中子源的宽能谱质子标定的可行性.

关键词：质子标定探测器 ~1.(n,el)反应反角白光中子源

Atlas of dynamic spectra of fast radio burst FRB 2.2.1.2.A

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Chinese Physics B 2023年第2期32卷 1-4页

作者：王铂钧胥恒姜金辰徐江伟牛佳瑞陈平李柯伽张冰朱炜玮东苏勃张春风傅海周德江张永坤王培冯毅李晔李冬子鲁文宾杨元培 RNCaballero 蔡策陈卯蒸戴子高艾力·伊沙木丁甘恒谦韩金林郝龙飞黄玉祥姜鹏李承奎李菂李辉李新乔李志玄刘志勇罗睿门云鹏牛晨辉彭文溪钱磊宋黎明孙京海王发印汪敏王娜王维扬吴雪峰肖硕熊少林徐永华徐仁新杨俊杨轩姚蕊易祁彬岳友岭于东俊余文飞袁建平张彬彬张松波张双南赵一郑伟康朱岩邹金航 Kavli Institute for Astronomy and Astrophysics Peking UniversityBeijing 100871China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China department of Astronomy Peking UniversityBeijing 100871China university of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China department of Particle Physics and Astrophysics Weizmann Institute of ScienceRehovot 76100Israel Nevada Center for Astrophysics University of NevadaLas VegasNV 89154USA department of Physics and Astronomy University of NevadaLas VegasNV 89154USA department of Physics&Astronomy University of IowaIowa CityIA 52242USA Zhejiang Laboratory HangzhouZhejiang 311121China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210008China TAPIR Walter Burke Institute for Theoretical PhysicsMail Code 350-17CaltechPasadenaCA 91125USA department of Astronomy University of California at BerkeleyBerkeleyCA 94720USA South-Western Institute For Astronomy Research Yunnan UniversityYunnan 650504China Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China university of Science and Technology of{1. Anhui 230026China Yunnan Observatories Chinese Academy of SciencesKunming 650216China Guizhou normal {1. Guiyang 550001China CSIRO Space and Astronomy EppingNSW 1710Australia Max-Planck institut fur Radioastronomie Auf Dem HugelBonn53121Germany School of Astronomy and Space Science Nanjing UniversityNanjing 210093China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China Key Laboratory of Modern Astronomy and Astrophysics(Nanjing university) Ministry of EducationNanjing 210093China College of Physics Hebei Normal UniversityShijiazhuang 050024China

Fast radio bursts(FRBs) are highly dispersed millisecond-duration radio bursts,[1.{1.of which the physical origin is still not fully understood. FRB {1.{1.1.{1.A is one of the most actively repeating FRBs. In this paper, we present the collection of 1.63 burst dynamic spectra of FRB {1.{1.1.{1.A measured with the Five-hundred-meter Aperture Spherical radio Telescope(FAST). The current collection, taken from the observation during the FRB active phase from April to June {1.{1., is the largest burst sample detected for any FRB so far. The standard PSRFITs format is adopted, including dynamic spectra of the burst, and the time information of the dynamic spectra, in addition, mask files help readers to identify the pulse positions are also provided. The dataset is available in Science Data Bank, with the link https://***/1..57760/sciencedb.j001.3.00076.

关键词： fast radio burst FAST