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Timing analysis of the black hole candidate EXO 1846–031 with Insight-HXMT monitoring

Research in Astronomy and Astrophysics 2021年第3期21卷 193-204页

作者： He-Xin liu Yue Huang Guang-cheng Xiao Qing-Cui Bu jin-Lu Qu Shu Zhang Shuang-Nan Zhang Shu-Mei Jia Fang-Jun Lu Xiang Ma lian Tao Wei Zhang li Chen li-Ming Song Ti-Pei li Yu-Peng Xu Xue-Lei Cao Yong Chen Cong-Zhan liu Ce Cai Zhi Chang Gang Chen Tian-Xiang Chen Yi-Bao Chen Yu-Peng Chen Wei Cui Wei-Wei Cui jing-Kang Deng Yong-Wei Dong Yuan-Yuan Du Min-Xue Fu Guan-Hua Gao He Gao Min Gao Ming-Yu Ge Yu-Dong Gu Ju Guan cheng-cheng Guo Da-Wei han Jia Huo Lu-Hua jiang Wei-Chun jiang jing jin Yong-Jie jin ling-Da Kong Bing li cheng-Kui li Gang li Mao-Shun li Wei li Xian li Xiao-Bo li Xu-Fang li yang-Guo li Zheng-Wei li Xiao-Hua liang jing-Yuan liao Bai-Sheng liu Guo-Qing liu Hong-Wei liu Xiao-jing liu Yi-Nong liu Bo Lu Xue-Feng Lu Qi Luo Tao Luo Bin Meng Yi Nang Jian-Yin Nie Ge Ou Na Sai Ren-cheng Shang Xin-Ying Song liang Sun Ying Tan You-li Tuo Chen wang Guo-Feng wang Juan wang ling-Jun wang weng-Shuai wang Yu-Sa wang Xiang-yang wen Bai-yang wu Bo-Bing wu Mei wu Shuo Xiao Shao-lin Xiong He Xu Jia-Wei yang Sheng yang Yan-Ji yang Yi-Jung yang Qi-Bin Yi Qian-Qing Yin Yuan You Ai-Mei Zhang cheng-Mo Zhang Fan Zhang Hong-Mei Zhang Juan Zhang Tong Zhang Wan-Chang Zhang wen-Zhao Zhang Yi Zhang Yi-Fei Zhang Yong-Jie Zhang Yuan-hang Zhang Yue Zhang Zhao Zhang Zhi Zhang Zi-liang Zhang Hai-Sheng Zhao Xiao-Fan Zhao Shi-Jie Zheng Yao-Guang Zheng Deng-Ke Zhou Jian-Feng Zhou Yu-xuan Zhu Ren-lin Zhuang Yue Zhu Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Chinese Academy of SciencesBeijing 100049China Institut fur Astronomie und Astrophysik Kepler Center for Astro and Particle PhysicsEberhard Karls Universität72076 TubingenGermany Department of Astronomy Beijing Normal UniversityBeijing 100088China Department of Astronomy Tsinghua UniversityBeijing 100084China Department of Physics Tsinghua UniversityBeijing 100084China Department of Engineering Physics Tsinghua UniversityBeijing 100084China Key Laboratory of Space Astronomy and Technology National Astronomical ObservatoriesChinese Academy of SciencesBeijing 100101China College of Physics Sciences&Technology Hebei UniversityBaoding 071002Hebei ProvinceChina

We present the observational results from a detailed timing analysis of the black hole candidate EXO 1846-031 during its outburst in 2019 with the observations of Insight-HXMT,NICER and *** outburst can be classified roughly into four different ***-C quasi-periodic oscillations(QPOs)observed by NICER(about 0.1-6 Hz)and Insight-HXMT(about 0.7-8 Hz)are also reported in this ***,we study various physical quantities related to QPO *** QPO rms-frequency relationship in the energy band 1-10 keV indicates that there is a turning pointing in frequency around2 Hz,which is similar to that of GRS 1915+105.A possible hypothesis for the relationship above may be related to the inclination of the source,which may require a high inclination to explain *** relationships between QPO frequency and QPO rms,hardness,total fractional rms and count rate have also been found in other transient sources,which can indicate that the origin of type-C QPOs is non-thermal.

关键词： X-ray binaries black hole candidate QPO EXO 1846–031

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Detector development at the Back-n white neutron source

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Radiation Detection Technology and Methods 2023年第2期7卷 171-191页

作者： Fan ruirui li Qiang Bao Jie li yang liu Rong jiang Wei Ren Jie Zhang Qiwei Cao Ping Gu Minhao Ren Zhizhou Yi han Tang jingyu An Qi Bai Haofan Bai jiangbo Chen Qiping Chen Yonghao Chen Zhen Cui Zengqi Fan Anchuan Feng Changqing Feng Fanzhen Gao Keqing han Changcai han Zijie He Guozhu He Yongcheng Hong yang Hu Yiwei Huang hanxiong Jia Weihua jiang Haoyu jiang Zhijie jin Zhengyao Kang ling li Bo li Chao li Gong li Jiawen li Xiao liu Jie liu Shubin Luan Guangyuan Ning Changjun Qi Binbin Ruan Xichao Song Zhaohui Sun Kang Tan Zhixin Tang Shengda wang Pengcheng wang Zhaohui wen Zhongwei wu Xiaoguang wu xuan Xie likun yang Yiwei Yu Yongji Zhang Guohui Zhang linhao Zhang Mohan Zhang Xianpeng Zhang Yuliang Zhang Yue Zhang Zhiyong Zhao Maoyuan Zhou Luping Zhou Zhihao Zhu Kejun The CSNS Back-n Collaboration Institute of High Energy Physics CASBeijing 100049People’s Republic of China Spallation Neutron Source Science Center Dongguan 523803People’s Republic of China State Key Laboratory of Particle Detection and Electronics Beijing 100049People’s Republic of China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413People’s Republic of China Institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang 621900People’s Republic of China Department of Modern Physics University of Science and Technology of ChinaHefei 230026People’s Republic of China State Key Laboratory of Particle Detection and Electronics Hefei 230026People’s Republic of China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871People’s Republic of China USTC archaeometry lab University of Science and Technology of ChinaHefei 230026People’s Republic of China Northwest Institute of Nuclear Technology Xi’an 710024People’s Republic of China University of Chinese Academy of Sciences Beijing 100049People’s Republic of China 不详

Purpose Back-n is a white neutron beamline at China spallation neutron source,which was established in the year of *** is a powerful facility for nuclear data measurement,neutron detector calibration,and radiation effect *** A series of detectors were built for different experiments,including beam monitoring,beam profile measurement,neutron induced secondaries(fission fragments,light charged particles and gamma)cross section measurement,and neutron resonance radiography,etc.A common digitization electronics and a cluster-based DAQ were developed for these detector *** detectors have been employed at Back-n and serviced for experiments from the beginning of the beamline *** and conclusion As an overview of detectors of Back-n,the details of the detector design and the experiment performing are described in this *** developing systems,e.g.,MTPC and B-MCP,are also included.

关键词： White neutron source Beam diagnostics Fission fragment Charged particle Gamma Neutron resonance radiography

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Overview to the Hard X-ray Modulation Telescope (Insight-HXMT) Satellite

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Science China(Physics,Mechanics & Astronomy) 2020年第4期63卷 2-19页

作者： Shuang-Nan Zhang TiPei li FangJun Lu liMing Song YuPeng X u CongZhan liu Yong Chen XueLei Cao QingCui Bu Zhi Chang Gang Chen li Chen TianXiang Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui jingKang Deng YongWei Dong Yuan Yuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan Can Gungor chengcheng Guo DaWei han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua jiang WeiChun jiang jing jin YongJie jin Bing li chengKui li Gang li MaoShun li Wei li Xian li XiaoBo li XuFang li yanguo li ZiJian li ZhengWei li XiaoHua liang jinYuan liao GuoQing liu HongWei liu ShaoZhen liu Xiaojing liu Yuan liu YiNong liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge Ou jinLu Qu Na Sai Rencheng Shang GuoHong Shen liang Sun Ying Tan lian Tao Youli Tuo Chen wang ChunQin wang GuoFeng wang HuanYu wang Juan wang wenShuai wang YuSa wang Xiangyang wen Baiyang wu BoBing wu Mei wu Guangcheng Xiao Shaolin Xiong linli Yan JiaWei yang Sheng yang YanJi yang QiBin Yi Bin Yuan AiMei Zhang ChunLei Zhang chengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang ShenYi Zhangs Shu Zhang Tong Zhang WanChang Zhang Wei Zhang wenZhao Zhang Yi Zhang YiFei Zhang YongJie Zhang Yue Zhang Zhao Zhang Zhi Zhang Ziliang Zhang HaiSheng Zhao XiaoFan Zhao ShiJie Zheng JianFeng Zhou Yuxuan Zhu Yue Zhu Renlin Zhuang Key Laboratory of Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of Chinese Academy of Sciences Beijing 100049China Department of Astronomy Tsinghua UniversityBeijing 100084China Department of Physics Tsinghua UniversityBeijing 100084China Department of Astronomy Beijing Normal UniversityBeijing 100088China Department of Engineering Physics Tsinghua UniversityBeijing 100084China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China National Space Science Center Chinese Academy of SciencesBeijing 100190China

As China’s first X-ray astronomical satellite, the Hard X-ray Modulation Telescope (HXMT), which was dubbed as Insight-HXMT after the launch on June 15, 2017, is a wide-band(1-250 ke V) slat-collimator-based X-ray astronomy satellite with the capability of all-sky monitoring in 0.2-3 Me V. It was designed to perform pointing, scanning and gamma-ray burst(GRB)observations and, based on the Direct Demodulation Method (DDM), the image of the scanned sky region can be *** we give an overview of the mission and its progresses, including payload, core sciences, ground calibration/facility, ground segment, data archive, software, in-orbit performance, calibration, background model, observations and some preliminary results.

关键词： X-and γ-ray telescopes and instrumentation neutron stars black holes X-ray binaries γ-ray bursts

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Expert consensus on the monitoring and treatment of sepsis-induced immunosuppression

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Military Medical Research 2023年第3期10卷 281-298页

作者： Fei Pei Ren‑Qi Yao Chao Ren Soheyl Bahrami Timothy RBilliar Irshad HChaudry De‑Chang Chen Xu‑lin Chen Na Cui Xiang‑Ming Fang Yan Kang Wei‑Qin li wen‑Xiong li Hua‑Ping liang Hong‑Yuan lin Ke‑xuan liu Ben Lu Zhong‑Qiu Lu Marc Maegele Tian‑Qing Peng You Shang Lei Su Bing‑Wei Sun Chang‑Song wang Jian wang jiang‑Huai wang Ping wang Jian‑Feng Xie li‑Xin Xie li‑Na Zhang Basilia Zingarelli Xiang‑Dong Guan Jian‑Feng wu Yong‑Ming Yao Department of Critical Care Medicine the First Affiliated Hospital of Sun Yat-Sen University58 Zhongshan Er RoadYuexiu DistrictGuangzhou 510080GuangdongChina Translational Medicine Research Center Medical Innovation Research Division and Fourth Medical Center of the Chinese PLA General Hospital28 Fuxing RoadHaidian DistrictBeijing 100853China Department of Burn Surgery the First Affiliated Hospital of Naval Medical UniversityShanghai 200433China Ludwig-Boltzmann Institute for Experimental and Clinical Traumatology 1200 ViennaAustria Department of Surgery University of Pittsburgh Medical CenterPittsburghPA 15213USA Center for Surgical Research and Department of Surgery University of Alabama at BirminghamBirminghamAL 35294USA Department of Critical Care Medicine Ruijin HospitalShanghai Jiaotong UniversityShanghai 200025China Department of Burns the First Affiliated Hospital of Anhui Medical UniversityHefei 230022China Department of Critical Care Medicine Peking Union Medical College HospitalChinese Academy of Medical Science and Peking Union Medical CollegeBeijing 100730China Department of Anesthesiology the First Affiliated HospitalZhejiang University School of MedicineHangzhou 31003China Department of Critical Care Medicine West China Hospital of Sichuan UniversityChengdu 610041China Department of Critical Care Medicine General Hospital of Eastern Theater Command of Chinese PLANanjing 210002China Department of Surgical Intensive Critical Unit Beijing Chao‑Yang HospitalCapital Medical UniversityBeijing 100020China State Key Laboratory of Trauma Burns and Combined InjuryResearch Institute of SurgeryDaping HospitalArmy Medical UniversityChongqing 400042China Department of Critical Care Medicine Fourth Medical Center of the Chinese PLA General HospitalBeijing 100048China Department of Anesthesiology Nanfang HospitalSouthern Medical UniversityGuangzhou 510515China Department of Critical Care Medicine and Hematology the Third Xiangya HospitalCentral South UniversityChangs

Emerged evidence has indicated that immunosuppression is involved in the occurrence and development of *** provide clinical practice recommendations on the immune function in sepsis,an expert consensus focusing on the monitoring and treatment of sepsis-induced immunosuppression was *** related to the immune monitoring and treatment of sepsis were retrieved from PubMed,Web of Science,and Chinese National Knowledge Infrastructure to design items and expert opinions were collected through an online ***,the Delphi method was used to form consensus opinions,and RAND appropriateness method was developed to provide consistency evaluation and recommendation levels for consensus *** consensus achieved satisfactory results through two rounds of questionnaire survey,with 2 statements rated as perfect consistency,13 as very good consistency,and 9 as good *** summarizing the results,a total of 14 strong recommended opinions,8 weak recommended opinions and 2 non-recommended opinions were ***,a face-to-face discussion of the consensus opinions was performed through an online meeting,and all judges unanimously agreed on the content of this *** summary,this expert consensus provides a preliminary guidance for the monitoring and treatment of immunosuppression in patients with sepsis.

关键词： Sepsis Immune function monitoring Immunomodulatory therapy Immunosuppression

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Measurement of the differential cross sections and angle-integrated cross sections of the ~6li(n,t)~4 He reaction from 1.0 eV to 3.0 MeV at the CSNS Back-n white neutron source

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Chinese Physics C 2020年第1期44卷 58-85页

作者： Huaiyong Bai ruirui Fan Haoyu jiang Zengqi Cui Yiwei Hu Guohui Zhang Zhenpeng Chen Wei jiang han Yi jingyu Tang liang Zhou Qi An Jie Bao Ping Cao Qiping Chen Yonghao Chen Pinjing cheng Changqing Feng Minhao Gu Fengqin Guo Changcai han Zijie han Guozhu He Yongcheng He Yuefeng He hanxiong Huang Weiling Huang Xiru Huang Xiaolu Ji Xuyang Ji hantao jing ling Kang Mingtao Kang Bo li Lun li Qiang li Xiao li yang li yang li Rong liu Shubin liu Xingyan liu Guangyuan Luan Yinglin Ma Changjun Ning Binbin Qi Jie Ren Xichao Ruan Zhaohui Song Hong Sun Xiaoyang Sun Zhijia Sun Zhixin Tan Hongqing Tang Pengcheng wang Qi wang Taofeng wang Yanfeng wang Zhaohui wang Zheng wang Jie wen Zhongwei wen Qingbiao wu Xiaoguang wu xuan wu likun Xie Yiwei yang li Yu Tao Yu Yongji Yu jing Zhang linhao Zhang liying Zhang Qingmin Zhang Qiwei Zhang Xianpeng Zhang Yuliang Zhang Zhiyong Zhang Yingtan Zhao Zuying Zhou Danyang Zhu Kejun Zhu Peng Zhu State Key Laboratory of Nuclear Physics and Technology Institute of Heavy Ion PhysicsSchool of PhysicsPeking UniversityBeijing 100871China Sate Key Laboratory of Particle Detection and Electronics Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Dongguan Neutron Science Center Dongguan 523803China Physics Department Tsinghua UniversityBeijing 100084China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China Institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China University of South China Hengyang 421001China Northwest Institute of Nuclear Technology Xi’an 710024China Department of Engineering and Applied Physics University of Science and Technology of ChinaHefei 230026China Beihang University Beijing 100083China Xi’an Jiaotong University Xi’an 710049China

The^6 li(n,t)~4 He reaction was measured as the first experiment involving neutron-induced charged particle emission reactions at the CSNS(China Spallation Neutron Source)Back-n white neutron *** differential cross-sections of the^6 li(n,t)~4 He reaction at 15 detection angles ranging from 19.2°to 160.8°are obtained from 1.0 eV to 3.0 MeV at 80 neutron energy points;for 50 energy points below 0.1 MeV they are reported for the first *** results indicate that the anisotropy of the emitted tritium is noticeable above E_n=100 *** angle-integrated cross-sections are also *** present differential cross-sections agree in general with the previous evaluations,but there are some differences in the *** importantly,the present results indicate that the cross-sections of the^6 li(n,t)~4 He reaction might be overestimated by most evaluations in the 0.5-3.0 MeV region,although they are recommended as standards below 1.0 MeV.

关键词： ~6li(n,t)~4He reaction differential cross-section angle-integrated cross-section LPDA

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Insight-HXMT observations of the first binary neutron star merger GW170817

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Science China(Physics,Mechanics & Astronomy) 2018年第3期61卷 26-33页

作者： TiPei li Shaolin Xiong ShuangNan Zhang FangJun Lu liMing Song XueLei Cao Zhi Chang Gang Chen li Chen TianXiang Chen Yong Chen YiBao Chen YuPeng Chen Wei Cui WeiWei Cui jingKang Deng YongWei Dong YuanYuan Du MinXue Fu GuanHua Gao He Gao Min Gao MingYu Ge YuDong Gu Ju Guan chengcheng Guo DaWei han Wei Hu Yue Huang Jia Huo ShuMei Jia LuHua jiang WeiChun jiang jing jin YongJie jin Bing li chengKui li Gang li MaoShun li Wei li Xian li XiaoBo li XuFang li yanguo li ZiJian li ZhengWei li XiaoHua liang jinYuan liao CongZhan liu GuoQing liu HongWei liu ShaoZhen liu Xiaojing liu Yuan liu YiNong liu Bo Lu XueFeng Lu Tao Luo Xiang Ma Bin Meng Yi Nang JianYin Nie Ge OU jinLu Qu Na Sai liang Sun Yin Tan lian Tao wenHui Tao Youli Tuo GuoFeng wang HuanYu wang Juan wang wenShuai wang YuSa wang Xiangyang wen BoBing wu Mei wu Guangcheng Xiao He Xu YuPeng Xu linli Yan JiaWei yang Sheng yang YanJi yang AiMei Zhang ChunLei Zhang chengMo Zhang Fan Zhang HongMei Zhang Juan Zhang Qiang Zhang Shu Zhang Tong Zhang Wei Zhang WanChang Zhang wenZhao Zhang Yi Zhang Yue Zhang YiFei Zhang YongJie Zhang Zhao Zhang Ziliang Zhang HaiSheng Zhao Jianling Zhao XiaoFan Zhao ShiJie Zheng Yue Zhu Yuxuan Zhu Changlin Zou Key Laboratory of Particle Astrophysics Institute of High Energy Physics Chinese Academy of Sciences Beijing 100049 China Department of Physics Tsinghua University Beijing 100084 China University of Chinese Academy of Sciences Chinese Academy of Sciences Beijing 100049 China Department of Astronomy Beijing Normal University Beijing 100088 China Department of Engineering Physics Tsinghua University Beijing 100084 China

Finding the electromagnetic （EM） counterpart of binary compact star merger, especially the binary neutron star （BNS） merger, is critically important for gravitational wave （GW） astronomy, cosmology and fundamental physics. On Aug. 17, 2017, Advanced liGO and Fermi/GBM independently triggered the first BNS merger, GW170817, and its high energy EM counterpart, GRB 170817A, respectively, resulting in a global observation campaign covering gamma-ray, X-ray, UV, optical, IR, radio as well as neutrinos. The High Energy X-ray telescope （HE） onboard Insight-HXMT （Hard X-ray Modulation Telescope） is the unique high-energy gamma-ray telescope that monitored the entire GW localization area and especially the optical counterpart （SSS17a/AT2017gfo） with very large collection area （M000 cm2） and microsecond time resolution in 0.2-5 MeV. In addition, Insight-HXMT quickly implemented a Target of Opportunity （TOO） observation to scan the GW localization area for potential X-ray emission from the GW source. Although Insight-HXMT did not detect any significant high energy （0.2-5 MeV） radiation from GW170817, its observation helped to confirm the unexpected weak and soft nature of GRB 170817A. Meanwhile, Insight-HXMT/HE provides one of the most stringent constraints （-10-7 to 104 erg/cm2/s） for both GRB170817A and any other possible precursor or extended emissions in 0.2-5 MeV, which help us to better understand the properties of EM radiation from this BNS merger. Therefore the observation of Insight-HXMT constitutes an important chapter in the full context of multi-wavelength and multi-messenger observation of this historical GW event.

关键词： GW170817 BNS merger gravitational wave electromagnetic counterpart

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An easily-prepared impedance matched Josephson parametric amplifier

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Chinese Physics B 2021年第6期30卷 48-51页

作者： Ya-Peng Lu Quan Zuo Jia-Zheng Pan Jun-liang jiang Xing-Yu Wei Zi-Shuo li wen-Qu Xu Kai-xuan Zhang Ting-Ting Guo Shuo wang Chun-Hai Cao Wei-Wei Xu Guo-Zhu Sun Pei-Heng wu Research Institute of Superconductor Electronics School of Electronic Science and EngineeringNanjing UniversityNanjing 210093China Purple Mountain Laboratories Nanjing 211111China

An impedance matched parametric amplifier(IMPA)with Josephson junctions is fabricated and characterized.A hybrid structure containing coplanar and strip structures is implemented to realize an impedance taper line and a plate capacitor in an LC nonlinear resonator based on Josephson *** upper plate of the capacitor is isolated with SiNx without grounding as well as the *** easily-prepared designs greatly reduce the requirements for lithography alignment and precision,which makes the fabrication process more *** experimental results show that in such IMPA a gain higher than 25 dB with a bandwidth of about 100 MHz can be *** broadband amplifier operates close to the quantum *** adjusting the working point,a higher bandwidth of about 400 MHz can be obtained with a gain of about 17 dB.

关键词： Josephson junction parametric amplification impedance matching gain and bandwidth

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低能离子对高温超导YBa2Cu3O7-δ薄膜的表面改性和机理

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物理学报 2018年第3期67卷 185-192页

作者：王三胜李方吴晗张竺立蒋雯赵鹏北京航空航天大学微纳测控与低维物理教育部重点实验室北京100191 湘潭大学材料科学与工程学院湘潭411105

低能氩离子束轰击并后退火处理的离子束表面改性,会影响高温超导薄膜的表面结构和超导特性,但是其中的深刻微观机理不清楚.本文通过连续改变离子束轰击时间,系统研究了离子束表面改性对于超导膜结构和临界电流密度的影响.通过扫描电子... 详细信息

低能氩离子束轰击并后退火处理的离子束表面改性,会影响高温超导薄膜的表面结构和超导特性,但是其中的深刻微观机理不清楚.本文通过连续改变离子束轰击时间,系统研究了离子束表面改性对于超导膜结构和临界电流密度的影响.通过扫描电子显微镜、X射线衍射、J_(c-scanning)测试表征样品的结构特性和超导特性,并得出内应变、氧空位缺陷等参量.研究表明,经过表面改性的钇钡铜氧(YBa_2Cu_3O_(7-δ),YBCO)薄膜,随轰击时间增加表面形貌会变得更加均匀致密,a轴晶粒消失,并且临界电流密度有了显著的提高.由化学键收缩配对模型分析得出,临界电流密度的提高与薄膜内应变增大和引发的局部YBCO结构中Cu—O键收缩有关.

关键词：钇钡铜氧离子束表面改性临界电流密度化学键收缩配对模型

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Initial years'neutron-induced cross-section measurements at the CSNS Back-n white neutron source

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Chinese Physics C 2021年第6期45卷 1-14页

作者： jingyu Tang Rong liu Guohui Zhang Xichao Ruan Xiaoguang wu Qi An jiangbo Bai Jie Bao Yu Bao Ping Cao Haolei Chen Qiping Chen Yonghao Chen Zhen Chen Zengqi Cui ruirui Fan Changqing Feng lin Gan Keqing Gao Xiaolong Gao Minhao Gu Changcai han Zijie han Guozhu He Yongcheng He yang Hong Yiwei Hu hanxiong Huang Xiru Huang Haoyu jiang Wei jiang Zhijie jiang hantao jing ling Kang Bo li Chao li Jiawen li Qiang li Xiao li yang li Jie liu Minliang liu Shubin liu Xingyan liu Ze Long Guangyuan Luan Changjun Ning Mengchen Niu Binbin Qi Jie Ren Zhizhou Ren Zhaohui Song Kang Sun Zhijia Sun Zhixin Tan Xinyi Tang Binbin Tian lijiao wang Pengcheng wang Zhaohui wang Jie wen Zhongwei wen xuan wu likun Xie Xiaoyun yang Yiwei yang han Yi li Yu Tao Yu Yongji Yu linhao Zhang Qiwei Zhang Xianpeng Zhang Yuliang Zhang Zhiyong Zhang Luping Zhou Zhihao Zhou Kejun Zhu State Key Laboratory of Particle Detection and Electronics Institute of High Energy Physics Chinese Academy of Sciences(CAS)Beijing 100049China Spallation Neutron Source Science Center Dongguan 523803China University of Chinese Academy of Sciences Beijing 100049China Institute of Nuclear Physics and Chemistry China Academy of Engineering PhysicsMianyang 621900China State Key Laboratory of Nuclear Physics and Technology School of PhysicsPeking UniversityBeijing 100871China Key Laboratory of Nuclear Data China Institute of Atomic EnergyBeijing 102413China Department of Modern Physics University of Science and Technology of ChinaHefei 230026China College of Physics and Optoelectronic Engineering Shenzhen UniversityShenzhen 518060China Northwest Institute of Nuclear Technology Xi'an 710024China Institute of Modern Physics Chinese Academy of Sciences(CAS)Lanzhou 730000China

The Back-n white neutron source(known as Back-n)is based on back-streaming neutrons from the spallation target at the China Spallation Neutron Source(CSNS).With its excellent beam properties,e.g.,a neutron flux of approximately 1.8×107 n/cm2/s at 55 m from the spallation target,energy range spanning from 0.5 eV to 200 MeV,and time-of-flight resolution of a few per thousand,along with the equipped physical spectrometers,Back-n is considered to be among the best facilities in the world for carrying out nuclear data *** its completion and commencement of operation in May 2018,five types of cross-section measurements concerning neutron capture cross-sections,fission cross-sections,total cross-sections,light charged particle emissions,in-beam gamma spectra,and more than forty nuclides have been *** article presents an overview of the experimental setup and result analysis on the neutron-induced cross-section measurements and gamma spectroscopy at Back-n in the initial years.

关键词： white neutron beam experimental spectrometers nuclear data measurements nuclides data analysis

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Benefit of infusions with ibandronate treatment in children with osteogenesis imperfecta

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Chinese Medical Journal 2011年第19期000卷 3049-3053页

作者： li Mei XIA Wei-bo XING Xiao-ping YU Wei HU Ying-ying jiang Yan wang Ou liU Hai-juan han Lan-wen MENG Xun-wu XU ling Department of Endocrinology Endocrine Key Laboratory of the Ministryof Health of China Peking Union Medical College Hospital Peking Union Medical CollegeChinese Academy of Medical Sciences Beijing 100730 China Department of Radiology Paeking Union Miedical College Hospital Peking Union Medical College Chinese Academy of Medical Sciences Beijing100730 China Department of Gynaecology and Obstetrics Peking Union Medical College Hospital Peking UnionMedical College Chinese Academy of Medical Sciences Beijing100730 China

Background Osteogenesis imperfecta （OI） is a rare bone disease and its effective treatment is relatively deficient. We tried to assess the effects of new bisphosphonate, ibandronate on children with *** In this open-label, prospective, controlled study, 30 children with OI were enrolled. They received either infusions of ibandronate （2 mg） in every three months or oral calcitriol 0.25 μg daily for 24 months. All patients took 500 mg calcium plus 200 U vitamin D daily together. The endpoints were the change of annual new fracture rate （observed by case history and X ray films of spine）, bone mineral density （BMD, measured by dual energy X-ray absortiometry）, serum concentration of carboxy-telopeptide cross-links of type Ⅰ collagen （CTX, bone resorption marker） and alkaline phosphatase （ALP, bone formation marker） during the *** After the cyclic infusions of ibandronate, the annual new fracture rate was significantly decreased from 1.9 to 0.13 time, obviously lower than that of calcitriol group, which decreased from 1.8 to 1.0 time after the treatment （P 〈0.001）.The significant increase of BMD at the lumbar spine, femoral neck, trochanter, total hip was found in the group of ibandronate by 59.0%, 42.0%, 47.5% and 36.6% in time dependent manner （compared with the baseline, P 〈0.001）. The increase of BMD in ibandronate group was greater than that of calcitriol group （P 〈0.001）. The concentrations of ALP and CTX were obviously decreased in ibandronate group, and the reduction of CTX was more significant than that of ALP （P 〈0.001）. The tolerance of the children to ibandronate was quite well. Mild fever and muscle pain were found in 9 cases within 1-3 days after the first infusion of ibandronate, which could relieve after 1-2 days without special *** The benefits of cyclic infusions of ibandronate to children with OI are significant because ibandronate could significantly reduce annual bone fracture rate, increase lumbar and hip BMD

关键词： osteogenesis imperfecta ibandronate annual new fracture rate bone mineral density

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