检索结果-南通市图书馆

Cloning and characterization of one putative muscle actin gene only expressed at the larval stages from brown planthopper, Nilaparvata lugens

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Journal of Agricultural Science and Technology 2008年第1期2卷 1-5页

作者： GU Jian-hua liu Shu-hua yao xiang-mei song feng zhang yi-xi liu ze-wen Key Laboratory of Monitoring and Management of Plant Disease and Insect Ministry of Agriculture Nanjing Agricultural University Nanjin g 210095 China

An actin gene （BPH-Actin3） from the important rice pest brown planthopper, Nilaparvata lugens, was cloned and gene expression was characterized at different development stages. The gene was 1461bp with an open reading frame of l l31bp coding for a 376 amino acids protein, with 330 nucleotides of the 3＇-untranslation region （3＇-UTR）. The amino acid sequence deduced from the nucleotide sequence showed higher similarities to other insect muscle actins （94-95%） than those to non-muscle actins （87-93%）. The 3＇-UTR contains several AU-rich elements （AREs） AUUUA/UAAAU and one extended ARE UAAAAAU, which may function in regulating mRNA decay. Northern blot and RT-PCR studies showed BPH-Actin3 expressed at brown planthopper full larval stages with the highest mRNA levels at 3rd and 4th instar stages, but not expressed at egg and adult stages. Because the 3rd and 4th instars are the key development stages for brown planthopper wing-form determination, it was thought BPH-Actin3 might play important roles in brown planthopper wing development.

关键词： brown planthopper actin BPH-Actin3 northernblot gene expression

Study of the response of 10B-doped MCP to wide-energy range neutrons from eV to MeV

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

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

Paired quasi-periodic pulsations of hard X-ray emission in a solar flare

在线全文

学校读者我要写书评

暂无评论

Science China(Physics,Mechanics & Astronomy) 2023年第5期66卷 195-206页

作者： Hai-Sheng Zhao Dong Li Shao-Lin xiong Yan-Qiu zhang Yang Su Wei Chen yi Zhao xiao-Bo Li Jia-Cong liu wen-xi Peng Rui Qiao xin-Qiao Li xiang-Yang wen Li-Ming song Shi-Jie Zheng xin-ying song xiao-Yun Zhao Yue Huang Shuang-Nan zhang Shuo xiao Ce Cai Zheng-Hua An Can Chen Gang Chen Wei Chen Yan-Qi Du Min Gao Ke Gong Dong-Ya Guo Zhi-Wei Guo Jian-Jian He Bin Li Chao Li Chao-Yang Li Gang Li Jian-Hui Li Lu Li Qing-xin Li Yan-Guo Li Jing Liang xiao-Hua Liang Jin-Yuan Liao xiao-Jing liu Ya-Qing liu Qi Luo xiang Ma Bin Meng Ge Ou Dong-Li Shi Jing-Yan Shi Gong-xing Sun xi-Lei Sun You-Li Tuo Chen-Wei Wang Hui Wang Jin Wang Jin-Zhou Wang Ping Wang wen-Shuai Wang Hong Wu Sheng-Lun xie Yan-Bing Xu Yu-Peng Xu Wang-Chen Xue Sheng Yang Min yao Jian-ying Ye Qi-Bin yi Chao-Yue zhang Da-Li zhang Fan zhang Fei zhang Hong-mei zhang Kai zhang Peng zhang xiao-Lu zhang Zhen zhang Guo-ying Zhao Shi-yi Zhao Chao Zheng xing Zhou Yue Zhu Key Laboratory for Particle Astrophysics Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210023China University of Chinese Academy of Sciences Beijing 100049China Department of Astronomy Beijing Normal UniversityBeijing 100875China School of Computing and Artificial Intelligence Southwest Jiaotong UniversityChengdu 611756China Physics and Space Science College China West Normal UniversityNanchong 637002China Key Laboratory of Stellar and Interstellar Physics and Department of Physics Xiangtan UniversityXiangtan 411105China Institute of Astrophysics Central China Normal UniversityWuhan 430079China School of Physics Changchun University of Science and TechnologyChangchun 130022China College of Physics and Engineering Qufu Normal UniversityQufu 273165China College of Physics Sciences&Technology Hebei UniversityBaoding 071002China

We investigate high time resolution data obtained by the Gravitational wave high-energy Electromagnetic Counterpart All-sky Monitor(GECAM)during the flare event on 2022 April 21 at 01:52 *** subpeaks with durations of 4-6 s have been detected in the hard X-ray precursor phase,and the key feature is that they appear in pairs and seem like double-peak *** subpeaks are rarely observed in hard X-ray band and confirmed by the microwave obtained by Nobeyama Radio Polarimeters(NoRP)and Radio Solar Telescope Network(RSTN).While an exponential function can describe the continuum component of the time profile from the precursor to part of the impulsive *** periods of quasi-periodic pulsations(QPPs)are detected to be about 7.3 and 12.8 s for the precursor and impulsive phase,respectively,with at least 95%confidence *** paired QPPs are assumed to be double-peak QPPs and then the scenario of current loop coalescence model is found to be in good agreement with our *** precursor phase can be interpreted as the oscillating coalescence of two islands,while the impulsive phase can be interpreted as more islands to coalesce one by one to form larger islands.

关键词： solar flare QPPs loop coalescence circular-ribbon flare

Lijiang 2.4-meter Telescope and its instruments

在线全文

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2019年第10期19卷 95-108页

作者： Chuan-Jun Wang Jin-Ming Bai Yu-feng Fan Ji-Rong Mao Liang Chang Yu-xin xin Ju-Jia zhang Bao-Li Lun Jian-Guo Wang xi-Liang zhang mei ying Kai-xing Lu xiao-Li Wang Kai-Fan Ji Ding-Rong xiong xiao-Guang Yu Xu Ding Kai Ye Li-feng xing Wei-Min yi Liang Xu xiang-Ming Zheng Yuan-Jie feng Shou-Sheng He Xue-Li Wang Zhong liu Dong Chen Jun Xu song-Nian Qin Rui-Long zhang Hui-song Tan Zhi Li Ke Lou Jian Li Wei-Wei liu Yunnan Observatories Chinese Academy of SciencesKunming 650216China Key Laboratory for the Structure and Evolution of Celestial Objects Chinese Academy of Sciences Kunming 650216 China Center for Astronomical Mega-Science Chinese Academy of Sciences Beijing 100101 China University of Chinese Academy of Sciences Beijing 100049 China Astrophysics Center of Guangzhou University Guangzhou 510006China

The Lijiang 2.4-meter Telescope(LJT), the largest common-purpose optical telescope in China,has been available to the worldwide astronomical community since 2008. It is located at the Gaomeigu site,Lijiang Observatory(LJO), in the southwest of China. The site has very good observational *** its 10-year operation, several instruments have been equipped on the LJT. Astronomers can perform both photometric and spectral observations. The main scientific goals of LJT include recording photometric and spectral evolution of supernovae, reverberation mapping of active galactic nuclei, investigating the physical properties of binary stars and near-earth objects(comets and asteroids), and identification of exoplanets and all kinds of transients. Until now, the masses of 41 high accretion rate black holes have been measured, and more than 168 supernovae have been identified by the LJT. More than 190 papers related to the LJT have been published. In this paper, the general observation conditions of the Gaomeigu site is introduced at first. Then, the structure of the LJT is described in detail, including the optical, mechanical, motion and control system. The specification of all the instruments and some detailed parameters of the YFOSC is also presented. Finally, some important scientific results and future expectations are summarized.

关键词： telescopes Lijiang 2.4-m Telescope-instrumentation photometers-instrumentation spectrographs

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

在线全文

学校读者我要写书评

暂无评论

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

A multicenter prospective study on the management of hepatoblastoma in children:a report from the Chinese Children's Cancer Group

在线全文

学校读者我要写书评

暂无评论

World Journal of Pediatrics 2024年第6期20卷 590-601页

作者： Meng-Jie Tang xiao-Li Ma xiang-Ling He Wei-Hua Pan xiao-Hong zhang Sha-yi Jiang Ju Gao Fu Li Wei yao song Gu Wei-Ling zhang Qiang Zhao Shi-Hao Huang Yong-Jun Fang Wei liu Hui-Zhong Niu Chun-mei Wang Li-Rong Sun Hui Gao Yun-Peng Dai Shun-Gen Huang Zhi-Yong Zhong xi-Ge Wang Zhong-Rong Li Liang-Chun Yang Ye-Ming Wu Huan-Min Wang xin Sun xiao-Jun Yuan Department of Pediatric Hematology/Oncology Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineNo.1665Kongjiang RoadYangpu DistrictShanghai 200092China Medical Oncology Department Pediatric Oncology CenterBeijing Children's HospitalCapital Medical UniversityNational Center for Children's HealthBeijing 100045China Department of Hematology/Oncology Children's Medical CenterHunan Provincial People's HospitalThe First Affiliated Hospital of Hunan Normal UniversityChangsha 41005China Department of Pediatric Surgery Xinhua Hospital Affiliated to Shanghai Jiao Tong University School of MedicineShanghai 200092China Department of Hematology/Oncology Guangzhou Women and Children's Medical CenterNational Children's Medical Center for South Central RegionGuangzhou 510623China Department of Hematology Shanghai Children's HospitalShanghai Jiao Tong UniversityShanghai 200062China Department of Pediatrics West China Second University HospitalSichuan UniversityChengdu 610041China Department of Hematology/Oncology Qilu Children's Hospital of Shandong UniversityJinan 250022China Department of Pediatric Surgery Children's Hospital of Fudan UniversityShanghai 201102China Department of General Surgery Shanghai Children's Medical Center(National Children's Medical Center-Shanghai)Shanghai Jiao Tong University School of MedicineShanghai 200127China Department of Pediatrics Beijing Tongren HospitalCapital Medical UniversityBeijing 100730China Department of Pediatric Oncology Tianjin Medical University Cancer Institute and HospitalTianjin 300060China Department of Hematology/Oncology Children's Hospital of Nanjing Medical UniversityNanjing 210008China Department of Hematology/Oncology Henan Children's HospitalZhengzhou 450018China Department of Pediatric General Surgery Hebei Children's Hospital of Hebei Medical UniversityShijiazhuang City 050031China Children's Hospital the First Affliated Hospital of Zhengzhou UniversityZhengzhou 450052China Department of Paediatric

Background This study aimed to identify survival risk factors in Chinese children with hepatoblastoma(HB)and assess the effectiveness of the new treatment protocol proposed by the Chinese Children's Cancer Group(CCCG)in *** A multicenter,prospective study that included 399 patients with HB from January 2015 to June 2020 was *** demographics,treatment protocols,and other related information were *** regression models and Kaplan-meier curve methods were *** The 4-year event-free survival(EFS)and overall survival(OS)were 76.9 and 93.5%,*** 4-year EFS rates for the very-low-risk,low-risk,intermediate-risk,and high-risk groups were 100%,91.6%,81.7%,and 51.0%,*** 4-year 0S was 100%,97.3%,94.4%,and 86.8%,*** regression analysis found that age,tumor rupture(R+),and extrahepatic tumor extension(E+)were independent prognostic factors.A total of 299 patients had complete remission,and 19 *** with declining alpha-fetoprotein(AFP)>75%after the first two cycles of neoadjuvant chemotherapy had a better EFS and OS than those≤75%.Conclusions The survival outcome of HB children has dramatically improved since the implementation of CCCG-HB-2016 ***≥8 years,R+,and E+were independent risk factors for *** with a declining AFP>75%after the first two cycles of neoadjuvant chemotherapy had better EFS and OS.

关键词： Alpha-fetoprotein Hepatoblastoma Multicenter Prospective study Survival

The In-Flight Realtime Trigger and Localization Software of GECAM

维普期刊数据库评论

在线全文

维普期刊数据库

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2024年第10期24卷 11-24页

作者： xiao-Yun Zhao Shao-Lin xiong xiang-Yang wen xin-Qiao Li Ce Cai Shuo xiao Qi Luo wen-xi Peng Dong-Ya Guo Zheng-Hua An Ke Gong Jin-Yuan Liao Yan-Qiu zhang Yue Huang Lu Li xing wen Fei zhang Jing Duan Chen-Wei Wang Dong-Li Shi Peng zhang Qi-Bin yi Chao-Yang Li Yan-Bing Xu xiao-Hua Liang Ya-Qing liu Da-Li zhang xi-Lei Sun Fan zhang Gang Chen Huan-Yu Wang Sheng Yang xiao-Jing liu Min Gao Mao-Shun Li Jin-Zhou Wang xing Zhou yi Zhao Wang-Chen Xue Chao Zheng Jia-Cong liu xing-Bo Han Jin-Ling Qi Jia Huang Ke-Ke zhang Can Chen xiong-Tao Yang Dong-Jie Hou Yu-Sa Wang Rui Qiao xiang Ma xiao-Bo Li Ping Wang xin-ying song Li-Ming song Shi-Jie Zheng Bing Li Hong-mei zhang Yue Zhu Wei Chen Jian-Jian He Zhen zhang Jin Hou Hong-Jun Wang Yan-Chao Hao xiang-Yu Wang Zong-Yuan Yang Zhi-Long wen Zhi Chang Yuan-Yuan Du Rui Gao xiao-Fei Lan Yan-Guo Li Gang Li Xu-Fang Li Fang-Jun Lu Hong Lu Bin Meng feng Shi Hui Wang Hui-Zhen Wang Yu-Peng Xu Jia-Wei Yang Xue-Juan Yang Shuang-Nan zhang Chao-Yue zhang Cheng-Mo zhang Zhi-Cheng Tang Cheng Cheng 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 School of Information Science and Technology Southwest Jiaotong UniversityChengdu 611756China Key Laboratory of Stellar and Interstellar Physics and Department of Physics Xiangtan UniversityXiangtan 411105China Physics and Space Science College China West Normal UniversityNanchong 637002China Department of Astronomy Beijing Normal UniversityBeijing 100875China Innovation Academy for Microsatellites of CAS Shanghai 201203China Changchun University of Science and Technology Changchun 130022China Chinese Academy of Sciences South America Center for Astronomy National Astronomical ObservatoriesCASBeijing 100101China

Realtime trigger and localization of bursts are the key functions of GECAM,an all-sky gamma-ray monitor launched on 2020 December *** developed a multifunctional trigger and localization software operating in the CPU of the GECAM Electronic *** onboard software has the following features:high trigger efficiency for real celestial bursts with a suppression of false triggers caused by charged particle bursts and background fluctuation,dedicated localization algorithm optimized for both short and long bursts,and low time latency of the trigger information which is downlinked through the Global Short Message Communication service of the global BeiDou navigation *** paper provides a detailed description of the design and development of the trigger and localization software system for *** covers the general design,workflow,the main functions,and the algorithms used in the *** paper also includes on-ground trigger tests using simulated gamma-ray bursts generated by a dedicated X-ray tube,as well as an overview of the performance for real celestial bursts during its in-orbit operation.

关键词： telescopes instrumentation:detectors methods:observational

10B-doped MCP detector developed for neutron resonance imaging at Back-n white neutron source

在线全文

学校读者我要写书评

暂无评论

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

Data processing and data products from 2017 to 2019 campaign of astronomical site testing at Ali,Daocheng and Muztagh-ata

在线全文

学校读者我要写书评

暂无评论

Research in Astronomy and Astrophysics 2020年第6期20卷 109-130页

作者： Zi-Huang Cao Jin-xin Hao Lu feng Hugh RAJones Jian Li Jing Xu Li-Yong liu Teng-Fei song Jian-feng Wang Hua-Lin Chen Yan-Jie Xue Huang Shen Yong-Heng Zhao Zhao-xiang Qi Jian-Rong Shi Yuan Tian Zheng Wang xia Wang Jin-Liang Hou Jin-Ming Bai Ji Yang Xu Zhou Yong-Qiang yao Jia yin Ali Esamdin Guang-xin Pu Peng Wei Chun-Hai Bai Guo-Jie feng Lu Ma Xuan zhang Yu liu Chong Pei Zhi-xia Shen Yun-ying Jiang Jian-feng Tian xian-Qun zeng Zhi-Gang Hou Xu Yang Jun-Bo zhang Shi-Long Liao Dong-Wei Fan Yun-Fei Xu Jian-Ping xiong Tai-Sheng Yan xi zhang Chang-Hua Li yi-Han Tao Si-Cheng Yu Zhi-song Cao Hong-Shuai Wang National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Shanghai Astronomical Observatory Chinese Academy of SciencesShanghai 200030China Centre for Astrophysics University of HertfordshireHatfieldUK School of Journalism Communication University of ChinaBeijing 100024China Nanjing Institute of Astronomical Optics&Technology Chinese Academy of SciencesNanjing 210042China xinjiang Astronomical Observatory Chinese Academy of SciencesUrumqi 830011China Yunnan Observatories Chinese Academy of SciencesKunming 650216China Purple Mountain Observatory Chinese Academy of SciencesNanjing 210033China Beijing Kaiyang Space Technology Co. LtdBeijing 100085China

Based on previous site testing and satellite cloud data,Ali,Daocheng and Muztagh-ata have been selected as candidate sites for the Large Optical/Infrared Telescope(LOT) in *** present the data collection,processing,management and quality analysis for our site testing based on using similar *** analyze meteorological data,seeing,background light,cloud and precipitable water vapor data from 2017 March 10 to 2019 March *** also investigated the relative usefulness of our all-sky camera data in comparison to that from the meteorological TERRA satellite data based on a night-by-night comparison of the correlation and consistency between *** find a 6% discrepancy arising from a wide range of factors.

关键词： LOT Site-selection-data processing