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Optimization of performance of the KM2A full array using the Crab Nebula

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chinese Physics C 2024年第6期48卷 169-178页

作者：曹臻 F.Aharonian 安琪阿西克古白云翔包逸炜 D.Bastieri 毕效军毕玉江蔡金庭曹晴曹文羽曹喆常进常劲帆陈尚明陈恩生陈亮陈林陈龙陈明君陈玛丽陈起辉陈素弘陈天禄陈阳程宁程耀东崔明阳崔树旺崔晓红崔昱东戴本忠代洪亮戴子高单增罗布 D.della Volpe 董绪强段凯凯樊军辉范一中方军方堃冯存峰封莉冯少辉丰晓婷冯有亮 S.Gabici 高博高川东高林青高启高卫高伟康葛茂茂耿利斯 G.Giacinti 龚光华苟全补顾旻皓郭福来郭晓磊郭义庆郭莹莹韩毅昂何会海贺昊宁何佳银何新波何钰 M.Heller 贺远强侯博文侯超侯贤胡红波胡铨胡世聪黄代绘黄天奇黄文俊黄性涛黄晓渊黄勇黄志成季筱璐贾焕玉贾康江琨姜晓巍姜泽军金敏康明铭柯通 D.Kuleshov.K.Kurinov 李兵兵李澄李骢李丹李飞李海波李会财李华阳李军李剑李捷李凯李文龙李文莲李秀荣李昕李一卓李哲黎卓梁恩维梁云峰林苏杰刘冰刘成刘栋刘虎刘海东刘佳刘江来刘金艳刘茂元柳若愚刘四明刘伟刘怡刘以农鲁睿罗晴吕洪魁马伯强马玲玲马欣华毛基荣闵振 W.Mitthumsiri 穆慧君南云程 A.Neronov 区子维庞彬宇 P.Pattarakijwanich 裴致远齐孟尧祁业情乔冰强秦家军 D.Ruffolo A.Sáiz D.Semikoz 邵澄宇邵琅 O.Shchegolev 盛祥东舒富文宋慧超 Yu.V.Stenkin V.Stepanov 苏扬孙秦宁孙晓娜孙志斌谭柏轩唐庆文唐泽波田文武王超王昌贝王广威王洪光王惠惠王建成汪凯王利苹王玲玉王培汉王冉王为王祥高王祥玉王阳王玉东王岩谨王忠海王仲翔王振王铮韦大明魏俊杰魏永健文韬吴超勇吴含荣武莎吴雪峰吴雨生席邵强夏捷夏君集项光漫肖迪泫肖刚辛广广辛玉良邢祎熊峥徐东莲徐仁峰徐仁新徐伟立薛良闫大海颜景志颜田杨朝文杨帆杨冯帆杨何文杨佳盈杨莉莉杨明洁杨睿智杨深邦姚玉华姚志国叶一锰尹丽巧尹娜游晓浩游智勇于艳红袁强岳华曾厚敦曾婷轩曾玮查敏张彬彬张丰张海明张恒英张建立张丽霞张力张鹏飞张佩佩张瑞张少博张少如张寿山张潇张笑鹏张云峰张毅张勇赵兵赵静赵雷赵立志赵世平郑福周斌周浩周佳能周猛周平周荣周勋秀祝成光祝凤荣朱辉朱科军左雄 LHAASO Collaboration Key Laboratory of Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of SciencesBeijing 100049China University of chinese academy of sciences Beijing 100049China Tianfu Cosmic Ray Research Center Chengdu 610000China Dublin Institute for Advanced Studies 31 Fitzwilliam Place2 DublinIreland Max-Planck-Institut for Nuclear Physics P.O.Box 10398069029 HeidelbergGermany State Key Laboratory of Particle Detection and Electronics China University of Science and Technology of china Hefei 230026China School of Physical Science and Technology&School of Information Science and Technology Southwest Jiaotong UniversityChengdu 610031China School of Astronomy and Space Science Nanjing UniversityNanjing 210023China Center for Astrophysics Guangzhou UniversityGuangzhou 510006China Hebei Normal University Shijiazhuang 050024China Key Laboratory of Dark Matter and Space Astronomy&Key Laboratory of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Tsung-Dao Lee Institute&School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Key Laboratory of Cosmic Rays(Tibet University) Ministry of EducationLhasa 850000TibetChina National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China School of Physics and Astronomy(Zhuhai)&School of Physics(Guangzhou)&Sino-French Institute of Nuclear Engineering and Technology(Zhuhai) Sun Yat-sen UniversityZhuhai 519000&Guangzhou 510275China School of Physics and Astronomy Yunnan UniversityKunming 650091China Département de Physique Nucléaire et Corpusculaire Facultéde SciencesUniversitéde Genève24 Quai Ernest Ansermet1211 GenevaSwitzerland Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdao 266237China APC Universit'e Paris Cit'eCNRS/IN2P3CEA/IRFUObservat

The full array of the Large High Altitude Air Shower observatory(LHAASO)has been in operation since July *** its kilometer-square array(KM2A),we optimized the selection criteria for very high and ultrahigh energyγ-rays using data collected from August 2021 to August 2022,resulting in an improvement in significance of the detection in the Crab Nebula of approximately 15%,compared with that of previous *** the implementation of these new selection criteria,the angular resolution was also significantly improved by approximately 10%at tens of *** aspects of the full KM2A array performance,such as the pointing error,were also calibrated using the Crab *** resulting energy spectrum of the Crab Nebula in the energy range of 10-1000 TeV are well fitted by a log-parabola model,which is consistent with the previous results from LHAASO and other experiments.

关键词： γ-ray Crab Nebula significance

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月球空间天气探测与研究进展

深空探测学报（中英文） 2024年第2期11卷 159-168页

作者：罗冰显张贤国孙天然白先勇韦飞林瑞淋李磊张珅毅孔令高王馨悦谢良海彭松武唐斌斌张颖洁徐秋予冷双冯鹏远苏杨甘为群封莉田晖陈林杰颜毅华宋永亮刘四清邓元勇空间天气学国家重点实验室北京100190 中国科学院空间环境态势感知技术重点实验室北京100190 中国科学院国家空间科学中心北京100190 中国科学院大学北京100049 天基空间环境探测北京市重点实验室北京100190 中国科学院国家天文台北京100101 中国科学院紫金山天文台南京210023 北京大学地空学院北京100871

稳定的天体地质构造、与地球合适的距离、无稠密大气和全球磁场,使得月球成为日地月空间天气监测和研究的天然优良实验室。回顾了国内外月球空间天气探测和研究进展,梳理了月球空间天气关键科学问题及预报应用问题,提出了建立月球空间... 详细信息

稳定的天体地质构造、与地球合适的距离、无稠密大气和全球磁场,使得月球成为日地月空间天气监测和研究的天然优良实验室。回顾了国内外月球空间天气探测和研究进展,梳理了月球空间天气关键科学问题及预报应用问题,提出了建立月球空间天气监测站的构想,明确了监测站具体科学目标,并介绍了监测站三大系统构成及相互关系,包括监测系统、科学研究系统以及建模与预报系统。建立月球空间天气监测站对研究太阳爆发活动、日地月耦合关系以及月球局地环境的变化具有重要的科学意义,也有利于促进月球空间天气建模和预报技术的发展,提升未来月球科研探索任务空间环境保障能力。

关键词：月球空间天气月球空间天气探测和研究月球空间天气监测站月球空间天气预报

Chang'E-1 Lunar Mission:An Overview and Primary Science Results

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空间科学学报 2010年第5期30卷 392-403页

作者： Ouyang Ziyuan Li Chunlai Lu Chang Liu Jianzhong Zou Yongliao Zhang Hongbo Jianjun Zuo wei Su Yah Wen weibin Bian wei Zhao Baochang Wang Jianyu Yang Jianfeng Chang Jin Wang Huanyu Zhang Xiaohui Wang Shijin Wang Min Ren Xin Mu Lingli Kong Deqing Wang Xiaoqian Wang Fang Geng Liang Zhang zhoubin Zheng Lei Zhu Xinying Zheng Yongchun Li Junduo Zou Xiaoduan xu Chun Shi Shuobiao Gao Yifei Gao Guannan National Astronomical Observatories Chinese Academy of Sciences Beijing 100012 Institute of Geochemistry Chinese Academy of Sciences Xi'an Institute of Optics and Precision Mechanics Chinese Academy of Sciences Shanghai Institute of Technical Physics Chinese Academy of Sciences purple mountain observatory Chinese Academy of Sciences Institute of High Energy Physics Chinese Academy of Sciences Center for Space Science and Applied Research Chinese Academy of Sciences

Chang'E-1 is the first lunar mission in china,which was successfully launched on Oct.24th,*** was guided to crash on the Moon on March 1,2009,at 52.36°E,1.50°S,in the north of Mare *** total mission lasted 495 days,exceeding the designed life-span about four months.1.37Terabytes raw data was received from Chang'*** was then processed into 4Terabytes science data at different levels.A series of science results have been achieved by analyzing and applicating these data,especially "global image of the Moon of china's first lunar exploration mission".Four scientific goals of Chang'E-1 have been *** provides abundant materials for the research of lunar sciences and *** these results will serve for china's future lunar missions.

关键词：科学数据嫦娥一号小学探月发射成功设计寿命原始数据国际形象

Advances in nuclear detection and readout techniques

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Nuclear Science and Techniques 2023年第12期34卷 281-358页

作者： Rui He Xiao‑Yang Niu Yi Wang Hong‑wei Liang Hong‑Bang Liu Ye Tian Hong‑Lin Zhang Chao‑Jie Zou Zhi‑Yi Liu Yun‑Long Zhang Hai‑Bo Yang Ju Huang Hong‑Kai Wang wei‑Jia Han Bei Cao Gang Chen Cong Dai Li‑Min Duan Rui‑Rui Fan Fang‑Fa Fu Jian‑Hua Guo Dong Han wei Jiang Xian‑Qin Li Xin Li Zhuo‑Dai Li Yu‑Tie Liang Shun Liao De‑xu Lin Cheng‑Ming Liu Guo‑Rui Liu Jun‑Tao Liu Ze Long Meng‑Chen Niu Hao Qiu Hu Ran Xiang‑Ming Sun Bo‑Tan Wang Jia Wang Jin‑Xiang Wang Qi‑Lin Wang Yong‑Sheng Wang Xiao‑Chuan Xia Hao‑Qing Xie He‑Run Yang Hong Yin Hong Yuan Chun‑Hui Zhang Rui‑Guang Zhao Ran Zheng Cheng‑Xin Zhao Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China School of Nuclear Science and Technology University of Chinese Academy of SciencesBeijing 100049China Advanced Energy Science and Technology Guangdong Laboratory Huizhou 516000China Key Laboratory of Particle and Radiation Imaging Department of Engineering PhysicsTsinghua UniversityBeijing 100084China School of Integrated Circuits Dalian University of TechnologyDalian 116020China Guangxi Key Laboratory for Relativistic Astrophysics School of Physical Science and TechnologyGuangxi UniversityNanning 530004China School of Nuclear Science and Technology Lanzhou UniversityLanzhou 730000China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Department of Radiation Oncology National Cancer Center/National Clinical Research Center for Cancer/Cancer HospitalChinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100021China Electronic Engineering School Heilongjiang UniversityHarbin 150080China Spallation Neutron Source Science Center Dongguan 523803China Micro‑electronic Department Harbin Institute of TechnologyHarbin 150001China purple mountain observatory Chinese Academy of SciencesNanjing 210034China Liaoning academy of Materials Shenyang 110167China Istituto Nazionale di Fisica Nucleare Sezione di PerugiaPerugiaItaly School of Mathematics and Physics Chengdu University of TechnologyChengdu 620035China PLAC Key Laboratory of Quark and Lepton Physics(MOE)Central China Normal UniversityWuhan 430079China School of Electronics and Information Northwestern Polytechnical UniversityXi’an 710129China State Key Lab of Superhard Materials College of PhysicsJilin UniversityChangchun 130012China School of Computer Science Northwestern Polytechnical UniversityXi’an 710129China

“A Craftsman Must Sharpen His Tools to Do His Job,”said *** detection and readout techniques are the foundation of particle physics,nuclear physics,and particle astrophysics to reveal the nature of the ***,they are being increasingly used in other disciplines like nuclear power generation,life sciences,environmental sciences,medical sciences,*** article reviews the short history,recent development,and trend of nuclear detection and readout techniques,covering Semiconductor Detector,Gaseous Detector,Scintillation Detector,Cherenkov Detector,Transition Radiation Detector,and Readout *** explaining the principle and using examples,we hope to help the interested reader underst and this research field and bring exciting information to the community.

关键词： Silicon detector Wide bandgap detector Time projection chamber(TPC) Multigap resistive plate chamber detector(MRPC) Scintillation detector Calorimeters Cherenkov detector Transition radiation detector Artificial intelligence Trigger-less readout

Method of Separating Cosmic-Ray Positrons from Electrons in the DAMPE Experiment

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Research in Astronomy and Astrophysics 2022年第3期22卷 115-121页

作者： Hao-Ting Dai Jing-Jing Zang Ying Wang Chuan-Ning Luo Yun-Long Zhang Zhi-Yong Zhang Yi-Feng wei Li-Bo Wu Cheng-Ming Liu Cong Zhao Xiao-Lian Wang Zi-Zong xu Guang-Shun Huang 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 School of Physics and Electronic Engineering Linyi UniversityLinyi 276000China Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Gran Sasso Science Institute (GSSI)

A method of identifying positron/electron species from the cosmic rays was studied in the DArk Matter Particle Explorer(DAMPE)*** there is no onboard magnet on the satellite,the different features imposed by the geomagnetic field on these two species were exploited for the particle *** of this method to the simulation of on-orbit electrons/positrons/protons and the real flight data proves that separately measuring the CR positrons/electrons with DAMPE is feasible,though limited by the field of view for the present observation *** analysis on the positron flux with this method can be expected in the future.

关键词： (ISM:)cosmic rays magnetic fields (cosmology:)dark matter

Comparison of Proton Shower Developments in the BGO Calorimeter of the Dark Matter Particle Explorer between GEANT4 and FLUKA Simulations

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chinese Physics Letters 2020年第11期37卷 114-120页

作者： wei Jiang Chuan Yue Ming-Yang Cui Xiang Li Qiang Yuan Francesca Alemanno Paolo Bernardini Giovanni Catanzani Zhan-Fang Chen Ivan De Mitri Tie-Kuang Dong Giacinto Donvito David Francois Droz Piergiorgio Fusco Fabio Gargano Dong-Ya Guo Dimitrios Kyratzis Shi-Jun Lei Yang Liu Francesco Loparco Peng-Xiong Ma Giovanni Marsella Mario Nicola Mazziotta xu Pan Wen-Xi Peng Antonio Surdo Andrii Tykhonov Yi-Yeng wei Yu-Hong Yu Jing-Jing Zang Ya-Peng Zhang Yong-Jie Zhang Yun-Long Zhang Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China School of Astronomy and Space Science University of Science and Technology of ChinaHefei 230026China Gran Sasso Science Institute(GSSI) Viale F.Crispi 7I-67100L'AquilaItaly Istituto Nazionale di Fisica Nucleare Laboratori Nazionali del Gran SassoVia G.Acitelli 22I-67100AssergiL'AquilaItaly Dipartimento di Matematica e Fisica E.De Giorgi Universitàdel SalentoI-73100 LecceItaly Istituto Nazionale di Fisica Nucleare(INFN)-Sezione di Lecce I-73100 LecceItaly INFN Section of Perugia I-06100 PerugiaItaly University of Perugia I-06100 PerugiaItaly Istituto Nazionale di Fisica Nucleare(INFN)-Sezione di Bari I-70125BariItaly Department of Nuclear and Particle Physics University of GenevaCH-1211Switzerland Dipartimento Interateneo“M.Merlin”dell'Universitàdegli Studi di Bari e del Politecnico di Bari I-70125BariItaly Dipartimento di Fisica e Chimica“E.Segrè” via delle Scienze Edificio 17UniversitàDegli Studi di PalermoI-90128PalermoItaly Institute of High Energy Physics Chinese Academy of SciencesBeijing 100049China State Key Laboratory of Particle Detection and Electronics University of Science and Technology of ChinaHefei 230026China Institute of Modern Physics Chinese Academy of SciencesLanzhou 730000China

The DArk Matter Particle Explorer(DAMPE)is a satellite-borne detector for high-energy cosmic rays and *** fully understand the detector performance and obtain reliable physical results,extensive simulations of the detector are *** simulations are particularly important for the data analysis of cosmic ray nuclei,which relies closely on the hadronic and nuclear interactions of particles in the detector *** adopted simulation softwares include the GEANT4 and FLUKA,both of which have been implemented for the DAMPE simulation *** we describe the simulation tool of DAMPE and compare the results of proton shower properties in the calorimeter from the two simulation *** a comparison gives an estimate of the most significant uncertainties of our proton spectral analysis.

关键词： material. GEANT4 calorimeter

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面向智能反射面辅助通信的深度学习信号检测

移动通信 2022年第4期46卷 1-6页

作者：霍浩淼许威陈栋东南大学信息科学与工程学院江苏南京210096 紫金山实验室江苏南京211111 小米科技有限责任公司北京100085

为了解决经典的信号检测方法在性能或复杂度方面存在的不足,根据智能反射面辅助通信的特点,利用深度学习方法设计了一种新型的面向智能反射面辅助通信的信号检测网络。根据梯度下降算法的展开思想,网络采用多个相似的单元结构级联,在每... 详细信息

为了解决经典的信号检测方法在性能或复杂度方面存在的不足,根据智能反射面辅助通信的特点,利用深度学习方法设计了一种新型的面向智能反射面辅助通信的信号检测网络。根据梯度下降算法的展开思想,网络采用多个相似的单元结构级联,在每个单元中通过设计短路直连结构强化部分输入的影响,并通过单元权重系数对网络不同单元的重要性进行调节。仿真结果表明,提出的深度检测网络相较传统线性检测算法在多种规模的智能反射面辅助通信系统中均有较大的性能提升,并具有较低的复杂度。

关键词：多输入多输出系统信号检测智能反射面深度学习

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基于可重构智能表面的6G通信技术

信号处理 2022年第8期38卷 1555-1567页

作者：姚嘉铖许威黄永明肖华华鲁照华东南大学移动通信国家重点实验室、移动信息通信与安全前沿科学中心江苏南京210096 网络通信与安全紫金山实验室江苏南京211111 移动网络和移动多媒体技术国家重点实验室广东深圳518057 中兴通讯股份有限公司广东深圳518057

可重构智能表面技术是面向下一代6G无线通信网络的关键技术之一。通过在天线阵列上集成大量无源反射超材料的天线元件,可重构智能表面能动态调整入射信号相位,重构信号的传播环境,实现人工可控的无线电磁环境。然而,可重构智能表面的引... 详细信息

可重构智能表面技术是面向下一代6G无线通信网络的关键技术之一。通过在天线阵列上集成大量无源反射超材料的天线元件,可重构智能表面能动态调整入射信号相位,重构信号的传播环境,实现人工可控的无线电磁环境。然而,可重构智能表面的引入也使无线通信系统的设计变得复杂,传统技术面临诸多新挑战。针对可重构智能表面的特性与6G新应用场景,需要创新设计新的传输技术,充分发挥可重构智能表面的优势。本文基于可重构智能表面6G通信技术,首先对其基本技术原理与常见应用场景展开介绍。接着,从信道建模与信道估计、混合波束赋形,以及与基于人工智能的融合设计三个方面阐述技术的研究现状,探讨了当前面临的技术瓶颈。最后,对该技术的未来发展进行了展望。

关键词：可重构智能表面 6G移动通信人工智能

基于卡尔曼滤波与Camshift的低轨空间变光目标跟踪方法

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天文学进展 2023年第4期41卷 596-608页

作者：王恩旺陈晓林王恩达许占伟钟胜昆明理工大学信息工程与自动化学院昆明650031 中国科学院紫金山天文台空间目标与碎片观测重点实验室南京210023 琼台师范学院信息科学技术学院海口571127 楚雄师范学院数学与计算机科学学院楚雄675099 华中科技大学人工智能与自动化学院武汉430074

针对低轨空间变光目标星像形态变化频繁且运动速度快,跟踪目标时很难准确捕获目标位置信息这一难点,提出卡尔曼滤波与Camshift相结合的目标跟踪方法。根据目标的难捕获特性,引入卡尔曼滤波外推对目标进行位置预测,用改进的Camshift跟踪... 详细信息

针对低轨空间变光目标星像形态变化频繁且运动速度快,跟踪目标时很难准确捕获目标位置信息这一难点,提出卡尔曼滤波与Camshift相结合的目标跟踪方法。根据目标的难捕获特性,引入卡尔曼滤波外推对目标进行位置预测,用改进的Camshift跟踪目标,即基于灰度图像单通道的白色提取的目标跟踪方法,实现低轨变光目标稳健跟踪和提高目标捕获率;当目标与恒星瞬间相互遮挡时,用改进的遮挡目标预判方法进行位置预测,同时用卡尔曼滤波的预测位置代替Camshift计算出的目标位置,作为观测位置去更新卡尔曼滤波,实现遮挡目标稳健跟踪和提高目标捕获率。实验结果表明:跟踪目标的可变波门根据目标大小自适应调整,不仅可以实现中高轨目标稳定跟踪,而且对低轨变光目标具有稳健跟踪效果。当目标与恒星瞬间相互遮挡时能稳健跟踪目标,提高跟踪数据的有用率。该方法程序运行速率快,灵敏度高,适用性强,实时性好,具有很好的使用价值和广泛应用前景。

关键词：卡尔曼滤波 Camshift 变光目标跟踪