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Science Bulletin 2024年第18期69卷 2833-2841页

作者： LHAASO Collaboration zhen Cao F.Aharonian Axikegu Y.x.Bai Y.W.Bao D.Bastieri x.J.Bi Y.J.Bi W.Bian A.V.Bukevich q.Cao W.Y.Cao zhe Cao J.Chang J.F.Chang A.M.Chen E.S.Chen H.x.Chen Liang Chen Lin Chen Long Chen M.J.Chen M.L.Chen q.H.Chen S.Chen S.H.Chen S.z.Chen T.L.Chen Y.Chen N.Cheng Y.D.Cheng M.Y.Cui S.W.Cui x.H.Cui Y.D.Cui B.z.Dai H.L.Dai z.G.Dai Danzengluobu x.q.Dong K.K.Duan J.H.Fan Y.z.Fan J.Fang J.H.Fang K.Fang C.F.Feng H.Feng L.Feng S.H.Feng x.T.Feng Y.Feng Y.L.Feng S.Gabici B.Gao C.D.Gao q.Gao W.Gao W.K.Gao M.M.Ge L.S.Geng G.Giacinti G.H.Gong q.B.Gou M.H.Gu F.L.Guo x.L.Guo Y.q.Guo Y.Y.Guo Y.A.Han M.Hasan H.H.He H.N.He J.Y.He Y.He Y.K.Hor B.W.Hou C.Hou x.Hou H.B.hu q.hu S.C.hu D.H.huang T.q.huang W.J.huang x.T.huang x.Y.huang Y.huang x.L.Ji H.Y.Jia K.Jia K.Jiang x.W.Jiang z.J.Jiang M.Jin M.M.Kang I.Karpikov D.Kuleshov K.Kurinov B.B.Li C.M.Li Cheng Li Cong Li D.Li F.Li H.B.Li H.C.Li Jian Li Jie Li K.Li S.D.Li W.L.Li W.L.Li x.R.Li xin Li Y.z.Li zhe Li zhuo Li E.W.Liang Y.F.Liang S.J.Lin B.liu C.liu D.liu D.B.liu H.liu H.D.liu J.liu J.L.liu M.Y.liu R.Y.liu S.M.liu W.liu Y.liu Y.N.liu q.Luo Y.Luo H.K.Lv B.q.Ma L.L.Ma x.H.Ma J.R.Mao z.Min W.Mitthumsiri H.J.Mu Y.C.Nan A.Neronov L.J.Ou P.Pattarakijwanich z.Y.Pei J.C.qi M.Y.qi B.q.qiao J.J.qin A.Raza D.Ruffolo A.Sáiz M.Saeed D.Semikoz L.Shao O.Shchegolev x.D.Sheng F.W.Shu H.C.Song Yu.V.Stenkin V.Stepanov Y.Su D.x.Sun q.N.Sun x.N.Sun z.B.Sun J.Takata P.H.T.Tam q.W.Tang R.Tang z.B.Tang W.W.Tian C.Wang C.B.Wang G.W.Wang H.G.Wang H.H.Wang J.C.Wang Kai Wang Kai Wang L.P.Wang L.Y.Wang P.H.Wang R.Wang W.Wang x.G.Wang x.Y.Wang Y.Wang Y.D.Wang Y.J.Wang z.H.Wang z.x.Wang zhen Wang zheng Wang D.M.Wei J.J.Wei Y.J.Wei T.Wen C.Y.Wu H.R.Wu q.W.Wu S.Wu x.F.Wu Y.S.Wu S.q.xi J.xia G.M.xiang D.x.xiao G.xiao Y.L.xin Y.xing D.R.xiong z.xiong D.L.xu R.F.xu R.x.xu W.L.xu L.xue D.H.Yan J.z.Yan T.Yan C.W.Yang C.Y.Yang F.Yang F.F.Yang L.L.Yang M.J.Yang R.z.Yang W.x.Yang Y.H.Yao z.G.Yao L.q.Yin N.Yin x.H.You z.Y.You Y.H.Yu q.Yuan H.Yue H.D.zeng T.x.zeng W.zeng M.zha B.B.zhang F.zhang H.zhang 不详 Key Laboratory of Particle Astrophysics&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 ChengduChina Dublin Institute for Advanced Studies 31 Fitzwilliam Place2 DublinIreland Max-Planck-Institut for Nuclear Physics P.O.Box 103980Heidelberg 69029Germany 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 Tsung-Dao Lee Institute&School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China Institute for Nuclear Research of Russian Academy of Sciences Moscow 117312Russia Hebei Normal university Shijiazhuang 050024China university of Science and Technology of china Hefei 230026China State Key Laboratory of Particle Detection and Electronics China Key Laboratory of Dark Matter and Space Astronomy&Key Laboratory of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023China Research Center for Astronomical Computing Zhejiang LaboratoryHangzhou 311121China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China School of Physics and Astronomy Yunnan UniversityKunming 650091China Key Laboratory of Cosmic Rays(Tibet university) Ministry of EducationLhasa 850000China 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 510275GuangdongChina Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdao 266237China APC UniversitéParis Cité

Theγ-ray emission from the W51 complex is widely acknowledged to be attributed to the interaction between the cosmic rays(CRs)accelerated by the shock of supernova remnant(SNR)W51C and the dense molecular clouds in the adjacent star-forming region,***,the maximum acceleration capability of W51C for CRs remains *** on observations conducted with the Large High Altitude Air Shower Observatory(LHAASO),we report a significant detection ofγrays emanating from the W51 complex,with energies from 2 to 200 *** LHAASO measurements,for the first time,extend theγ-ray emission from the W51 complex beyond 100 TeV and reveal a significant spectrum bending at tens of *** combining the"π^(0)-decay bump"featured data from Fermi-LAT,the broadbandγ-ray spectrum of the W51 region can be well-characterized by a simple pp-collision *** observed spectral bending feature suggests an exponential cutoff at~400 TeV or a power-law break at~200 TeV in the CR proton spectrum,most likely providing the first evidence of SNRs serving as CR accelerators approaching the PeV ***,two young star clusters within W51B could also be theoretically viable to produce the most energeticγrays observed by *** findings strongly support the presence of extreme CR accelerators within the W51 complex and provide new insights into the origin of Galactic CRs.

关键词： UHE c-ray Cosmic rays SNR W51C Star clusters

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

异形截面复合材料构件成形及力学性能预测方法研究

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机械工程学报 2024年第2期60卷 107-118页

作者：黄浩单忠德张丽娇孙正郭子桐刘检华金鹏北京理工大学机械与车辆学院北京100081 南京航空航天大学南京210016 中车工业研究院有限公司北京100160 北京科技大学材料科学与工程学院北京100083 深圳湾实验室生物医学工程研究所深圳518132

柔性导向三维织造技术成形构件层间性能强、应用广泛,但受织造过程路径规划和成形工艺的制约,使得织造时间长、构件性能不稳定。同时异形截面构件的复杂性使得原有工艺难以准确成形,且缺少相应的力学性能预测方法,严重阻碍三维织造技术... 详细信息

柔性导向三维织造技术成形构件层间性能强、应用广泛,但受织造过程路径规划和成形工艺的制约,使得织造时间长、构件性能不稳定。同时异形截面构件的复杂性使得原有工艺难以准确成形,且缺少相应的力学性能预测方法,严重阻碍三维织造技术在异形截面构件上的应用。本文深入探究柔性导向三维织造技术的织造机理,提出分区域织造的工艺方案,通过分段拟合逼近截面形状,有效解决了复杂异形截面构件成形难的问题。基于此工艺方案,建立牵引拉杆的宏细观尺度有限元力学性能预测模型,并以细观尺度预测结果为材料属性,分析牵引拉杆轴向承载时的应力状态。进一步建立纤维体积分数模型,分析了xY向纤维体积分数与力学性能之间的关系,为织造过程的形性调控奠定基础。试验结果表明,有限元预测z向弹性模量的误差在4.2%以内,为异形截面构件的早期设计和工程应用提供基础。

关键词：异形截面柔性导向三维织造力学性能预测成形工艺纤维体积分数

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Enhancement of electrical properties in znO thin film transistors fabricated by radio frequency magnetron sputtering

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Enhancement of electrical properties in ZnO thin film transi...

PERSPECTIVES IN MECHANICS OF HETEROGENEOUS SOLIDS

第六届国际氧化锌及相关材料研讨会

作者： H. q. huang F. J. liu J. Sun J. W. zhao z. F. hu and x. q. zhang Key Laboratory of Luminescence and Optical Information Ministry of Education Institute of Opto-electronic Technology beijing jiaotong university beijing 100044 china Key Laboratory of Luminescence and Optical Information Ministry of EducationInstitute of Opto-electronic TechnologyBeijing Jiaotong UniversityBeijing100044China

＜正＞Transparent and flexible electronics are believed to open the next generation of displays. To realize transparent and flexible electronics, the materials used to produce the devices must be insensitivity to light and do not degradation when expose to light;except these, low process temperature is also absolutely necessary. According to the characteristic of

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Acta Mechanica Solida Sinica 2011年第1期24卷 1-26页

作者： C.q. Chen J.z. Cui H.L. Duan x.q. Feng L.H. He G.K. hu M.J. huang Y.z. huo B.H. Ji B. liu x.H. Peng H.J. Shi q.P. Sun J.x. Wang Y.S. Wang H.P. zhao Y.P. zhao q.S. zheng W.N. zou Department of Engineering Mechanics AML Tsinghua University Beijing 100084 China Academy of Mathematics and Systems Sciences Chinese Academy of Sciences Beijing 100190 China State Key Laboratory for Turbulence and Complex System and Department of Mechanics and Aerospace Engineering College of Engineering Peking University Beijing 100871 China CAS Key Laboratory of Mechanical Behavior and Design of Materials University of Science and Technology of China Hefei Anhui 230026 China School of Aerospace Engineering Beijing Institute of Technology Beijing 100081 China Institute for Advanced Study Nanchang University Nanchang 330031 China Depariment of Mechanics and Engineering Sciences Fudan University 220 Handa Road Shanghai 200433 China Department of Mechanical Engineering Hong Kong University of Science and Technology Hong KongChina Department of Mechanical Engineering Hong Kong University of Science and Technology Hong Kong China Institute of Engineering Mechanics Beijing Jiaotong University Beijing 100044 China State Key Laboratory of Nonlinear Mechanics Institute of Mechanics Chinese Academy of Sciences Beijing 100190 China

The Micro- and Nano-mechanics Working Group of the Chinese Society of Theoretical and Applied Mechanics organized a forum to discuss the perspectives, trends, and directions in mechanics of heterogeneous materials in January 2010. The international journal, Acta Mechanica Solida Sinica, is de- voted to all fields of solid mechanics and relevant disciplines in science, technology, and engineering, with a balanced coverage on analytical, experimental, numerical and applied investigations. On the occasion of the 30TM anniversary of Acta Mechanica Solida Sinica, its editor-in-chief, Professor q.S. zheng invited some of the forum participants to review the state-of-the-art of mechanics of heterogeneous solids, with a particular emphasis on the recent research development results of Chinese scientists. Their reviews are organized into five research areas as reported in different sections of this paper. ~I firstly brings in fo- cus on micro- and nano-mechanics, with regards to several selective topics, including multiscale coupled models and computational methods, nanocrystal superlattices, surface effects, micromechanical damage mechanics, and microstructural evolution of metals and shape memory alloys. ~II shows discussions on multifield coupled mechanical phenomena, e.g., multi-fields actuations of liquid crystal polymer networks, mechanical behavior of materials under radiations, and micromechanics of heterogeneous materials. In ~III, we mainly address the multiscale mechanics of biological nanocomposites, biological adhesive surface mechanics, wetting and dewetting phenomena on microstructured solid surfaces. The phononic crystals and manipulation of elastic waves were elaborated in ~IV. Finally, we conclude with a series of perspectives on solid mechanics. This review will set a primary goal of future science research and engineering application on solid mechanics with the effort of social and economic development.

关键词： heterogeneous materials smart materials biological materials multiscale mechanics micro- and nano-mechanics damage and fracture constitutive relation elastic wave surface effects

Geometrical reconstruction of fluorescence events observed by the LHAASO experiment

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Chinese Physics C 2021年第4期45卷 416-425页

作者： F.Aharonian q.An Axikegu L.x.Bai Y.x.Bai Y.W.Bao D.Bastieri x.J.Bi Y.J.Bi H.Cai J.T.Cai z.Cao z.Cao J.Chang J.F.Chang x.C.Chang B.M.Chen J.Chen L.Chen L.Chen L.Chen M.J.Chen M.L.Chen q.H.Chen S.H.Chen S.z.Chen T.L.Chen x.L.Chen Y.Chen N.Cheng Y.D.Cheng S.W.Cui x.H.Cui Y.D.Cui B.z.Dai H.L.Dai z.G.Dai Danzengluobu D.della Volpe B.DEtorre Piazzoli x.J.Dong J.H.Fan Y.z.Fan z.x.Fan J.Fang J.Fang C.F.Feng L.Feng S.H.Feng Y.L.Feng B.Gao C.D.Gao q.Gao W.Gao M.M.Ge L.S.Geng G.H.Gong q.B.Gou M.H.Gu J.G.Guo x.L.Guo Y.q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He J.C.He S.L.He x.B.He Y.He M.Heller Y.K.Hor C.Hou x.Hou H.B.hu S.hu S.C.hu x.J.hu D.H.huang q.L.huang W.H.huang x.T.huang z.C.huang F.Ji x.L.Ji H.Y.Jia K.Jiang z.J.Jiang C.Jin D.Kuleshov K.Levochkin B.B.Li C.Li C.Li F.Li H.B.Li H.C.Li H.Y.Li J.Li K.Li W.L.Li x.Li x.Li x.R.Li Y.Li Y.z.Li z.Li z.Li E.W.Liang Y.F.Liang S.J.Lin B.liu C.liu D.liu H.liu H.D.liu J.liu J.L.liu J.L.liu J.S.liu J.Y.liu M.Y.liu R.Y.liu S.M.liu W.liu Y.N.liu z.x.liu W.J.Long R.Lu H.K.Lv B.q.Ma L.L.Ma x.H.Ma J.R.Mao A.Masood W.Mitthumsiri T.Montaruli Y.C.Nan B.Y..Pang P.Pattarakijwanich z.Y.Pei M.Y.qi D.Ruffolo V.Rulev A.Saiz L.Shao O.Shchegolev x.D.Sheng J.R.Shi H.C.Song Yu.V.Stenkin V.Stepanov q.N.Sun x.N.Sun z.B.Sun P.H.T.Tam z.B.Tang W.W.Tian B.D.Wang C.Wang H.Wang H.G.Wang J.C.Wang J.S.Wang L.P.Wang L.Y.Wang R.N.Wang W.Wang W.Wang x.G.Wang x.J.Wang x.Y.Wang Y.D.Wang Y.J.Wang Y.P.Wang z.Wang z.Wang z.H.Wang z.x.Wang D.M.Wei J.J.Wei Y.J.Wei T.Wen C.Y.Wu H.R.Wu S.Wu W.x.Wu x.F.Wu S.q.xi J.xia J.J.xia G.M.xiang G.xiao H.B.xiao G.G.xin Y.L.xin Y.xing D.L.xu R.x.xu L.xue D.H.Yan C.W.Yang F.F.Yang J.Y.Yang L.L.Yang M.J.Yang R.z.Yang S.B.Yang Y.H.Yao z.G.Yao Y.M.Ye L.q.Yin N.Yin x.H.You z.Y.You Y.H.Yu q.Yuan H.D.zeng T.x.zeng W.zeng z.K.zeng M.zha x.x.zhai B.B.zhang H.M.zhang H.Y.zhang J.L.zhang J.W.zhang L.zhang L.zhang L.x.zhang P.F.zhang P.F.zhang R.zhang S.R.zhang S.S.zhang x.zhang x.P.zhang Y.zhang Y.zhang Y.F.zhang Y.L.zhang B.zhao J.zhao L.zhao L.z.zhao S.P.zhao F.zheng Y.zheng B.zhou H.zhou J.N.zhou P 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 ChengduSichuanChina State Key Laboratory of Paricle Detection and Electronics China university of Science and Technology of china HefeiAnhui 230026China Department of Engineering Physics Tsinghua UniversityBeijing 100084China National Astronomical Observatories Chinese Academy of SciencesBeijing 100101China National Space Science Center Chinese Academy of SciencesBeijing 100190China School of Physics Peking UniversityBeijing 100871China Center for Astrophysics Guangzhou UniversityGuangzhouGuangdong 510006China School of Physics and Astronomy&School of Physics(Guangzhou) Sun Yat-sen UniversityZhuhaiGuangdong 519000China School of Physical Science and Technology Guangxi UniversityNanningGuangxi 530004China Hebei Normal university ShijiazhuangHebei 050024China School of Physics and Microelectronics Zhengzhou UniversityZhengzhouHenan 450001China School of Astronomy and Space Science Nanjing UniversityNanjingJiangsu 210023China Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjingJiangsu 210023China Institute of Frontier and Interdisciplinary Science Shandong UniversityQingdaoShandong 266237China Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of SciencesShanghai 200030China Tsung-Dao Lee Institute&School of Physics and Astronomy Shanghai Jiao Tong UniversityShanghai 200240China School of Physical Science and Technology Southwest Jiaotong UniversityChengduSichuan 610031China College of Physics Sichuan UniversityChengduSichuan 610065China Key Laboratory of Cosmic Rays(Tibet university) Ministry of EducationLhasaTibet 850000China School of physics and technology Wuhan UniversityWuhanHubei 430072Ch

The LHAASO-WFCTA experiment,which aims to observe cosmic rays in the sub-EeV range using the fluorescence technique,uses a new generation of high-performance *** ensure that the experiment has ex-cellent detection capability associated with the measurement of the energy spectrum,the primary composition of cosmic rays,and so on,an accurate geometrical reconstruction of air-shower events is *** paper de-scribes the development and testing of geometrical reconstruction for stereo viewed events using the WFCTA(Wide Field of view Cherenkov/Fluorescence Telescope Array)*** approaches,which take full advantage ofthe WFCTA *** *** is the stereo-angular method,which uses the pointing of triggered SiPMs in the shower trajectory,and the other is the stereo-timing method,which uses the triggering time of the fired *** results show that both methods have good geometrical resolution:the resolution of the stereo-timing method is slightly better than the stereo-angular method because the resolution of the latter is slightly limited by the shower track length.

关键词： cosmic ray fluorescence telescope stereo observation geometrical reconstruction

Structural and optical properties of non-polar （110） znO films grown by P-MBE

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Structural and optical properties of non-polar （110） ZnO...

Observation of the Crab Nebula with LHAASO-KM2A−a performance study

第六届国际氧化锌及相关材料研讨会

作者： F. J. liu 1R. zhang 2 z. F. hu 1 J. Sun 1 H. q. huang 1 J. W. zhao 1 P. G. Yin 3 L. Guo 3 x. q. zhang 1 1Key Laboratory of Luminescence and Optical Information Ministry of Education Institute of Optoelectronic Technology beijing jiaotong university beijing 100044 People’s Republic of china 2Center of Conservation and Restoration Capital Museum beijing 100045 People’s Republic of china 3School of Chemistry and Environment beijing university of Aeronautics and Astronautics beijing 100191 People’s Republic of china

＜正＞zinc oxide is a very potential functional material not only because of its wide direct band gap but also due to its well piezoelectric property. These properties can be used in realizing many ultraviolet optoele...

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Chinese Physics C 2021年第2期45卷 518-530页

作者： F.Aharonian q.An Axikegu L.x.Bai Y.x.Bai Y.W.Bao D.Bastieri x.J.Bi Y.J.Bi H.Cai J.T.Cai z.Cao J.Chang J.F.Chang x.C.Chang B.M.Chen J.Chen L.Chen M.J.Chen M.L.Chen q.H.Chen S.H.Chen S.z.Chen T.L.Chen x.L.Chen Y.Chen N.Cheng Y.D.Cheng S.W.Cui x.H.Cui Y.D.Cui B.z.Dai H.L.Dai z.G.Dai D.della Volpe B.D'Ettorre Piazzoli x.J.Dong J.H.Fan Y.z.Fan z.x.Fan J.Fang K.Fang C.F.Feng L.Feng S.H.Feng Y.L.Feng B.Gao C.D.Gao q.Gao W.Gao M.M.Ge L.S.Geng G.H.Gong q.B.Gou M.H.Gu J.G.Guo x.L.Guo Y.q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He J.C.He S.L.He x.B.He Y.He M.Heller Y.K.Hor C.Hou x.Hou H.B.hu S.hu S.C.hu x.J.hu D.H.huang q.L.huang W.H.huang x.T.huang z.C.huang F.Ji x.L.Ji H.Y.Jia K.Jiang z.J.Jiang C.Jin D.Kuleshov K.Levochkin B.B.Li C.Li F.Li H.B.Li H.C.Li H.Y.Li J.Li K.Li W.L.Li x.Li x.R.Li Y.Li Y.z.Li z.Li E.W.Liang Y.F.Liang S.J.Lin B.liu C.liu D.liu H.liu H.D.liu J.liu J.L.liu J.S.liu J.Y.liu M.Y.liu R.Y.liu S.M.liu W.liu Y.N.liu z.x.liu W.J.Long R.Lu H.K.Lv B.q.Ma L.L.Ma x.H.Ma J.R.Mao A.Masood W.Mitthumsiri T.Montaruli Y.C.Nan B.Y.Pang P.Pattarakijwanich z.Y.Pei M.Y.qi D.Ruffolo V.Rulev A.Sáiz L.Shao O.Shchegolev x.D.Sheng J.R.Shi H.C.Song Yu.V.Stenkin V.Stepanov q.N.Sun x.N.Sun z.B.Sun P.H.T.Tam z.B.Tang W.W.Tian B.D.Wang C.Wang H.Wang H.G.Wang J.C.Wang J.S.Wang L.P.Wang L.Y.Wang R.N.Wang W.Wang x.G.Wang x.J.Wang x.Y.Wang Y.D.Wang Y.J.Wang Y.P.Wang z.Wang z.H.Wang z.x.Wang D.M.Wei J.J.Wei Y.J.Wei T.Wen C.Y.Wu H.R.Wu S.Wu W.x.Wu x.F.Wu S.q.xi J.xia J.J.xia G.M.xiang G.xiao H.B.xiao G.G.xin Y.L.xin Y.xing D.L.xu R.x.xu L.xue D.H.Yan C.W.Yang F.F.Yang J.Y.Yang L.L.Yang M.J.Yang R.z.Yang S.B.Yang Y.H.Yao z.G.Yao Y.M.Ye L.q.Yin N.Yin x.H.You z.Y.You Y.H.Yu q.Yuan H.D.zeng T.x.zeng W.zeng z.K.zeng M.zha x.x.zhai B.B.zhang H.M.zhang H.Y.zhang J.L.zhang J.W.zhang L.zhang L.x.zhang P.F.zhang P.P.zhang R.zhang S.R.zhang S.S.zhang x.zhang x.P.zhang Y.zhang Y.F.zhang Y.L.zhang B.zhao J.zhao L.zhao L.z.zhao S.P.zhao F.zheng Y.zheng B.zhou H.zhou J.N.zhou P.zhou R.zhou x.x.zhou C.G.zhu F.R.zhu H.zhu K.J.zhu x.zuo Key Laboratory of Particle Astrophyics&Experimental Physics Division&Computing Center Institute of High Energy PhysicsChinese Academy of Sciences100049 BeijingChina university of Chinese Academy of Sciences 100049 BeijingChina TIANFU Cosmic Ray Research Center ChengduSichuanChina State Key Laboratory of Particle Detection and Electronics China university of Science and Technology of china 230026 HefeiAnhuiChina Department of Engineering Physics Tsinghua University100084 BeijingChina National Astronomical Observatories Chinese Academy of Sciences100101 BeijingChina National Space Science Center Chinese Academy of Sciences100190 BeijingChina School of Physics Peking University100871 BeijingChina Center for Astrophysics Guangzhou University510006 GuangzhouGuangdongChina School of Physics and Astronomy&School of Physics(Guangzhou) Sun Yat-sen University519000 ZhuhaiGuangdongChina School of Physical Science and Technology Guangxi University530004 NanningGuangxiChina Hebei Normal university 050024 ShijiazhuangHebeiChina School of Physics and Microelectronics Zhengzhou University450001 ZhengzhouHenanChina School of Astronomy and Space Science Nanjing University210023 NanjingJiangsuChina Key Laboratory of Dark Matter and Space Astronomy Purple Mountain ObservatoryChinese Academy of Sciences210023 NanjingJiangsuChina Institute of Frontier and Interdisciplinary Science Shandong University266237 QingdaoShandongChina Key Laboratory for Research in Galaxies and Cosmology Shanghai Astronomical ObservatoryChinese Academy of Sciences200030 ShanghaiChina Tsung-Dao Lee Institute&School of Physics and Astronomy Shanghai Jiao Tong University200240 ShanghaiChina School of Physical Science and Technology&School of Information Science and Technology Southwest Jiaotong University610031 ChengduSichuanChina College of Physics Sichuan University610065 ChengduSichuanChina Key Laboratory of Cosmic Rays(Tibet university) Ministry of Education850000 LhasaTibetChina School of Physics and Tec

A sub-array of the Large High Altitude Air Shower Observatory(LHAASO),KM2A is mainly designed to observe a large fraction of the northern sky to hunt for γ-ray sources at energies above 10 *** though the detector construction is still underway,half of the KM2A array has been operating stably since the end of *** this paper,we present the KM2A data analysis pipeline and the first observation of the Crab Nebula,a standard candle in very high energy γ-ray *** detect γ-ray signals from the Crab Nebula in both energy ranges of 10-100 TeV and>100 TeV with high significance,by analyzing the KM2A data of 136 live days between December 2019 and May *** the observations,we test the detector performance,including angular resolution,pointing accuracy and cosmic-ray background rejection *** energy spectrum of the Crab Nebula in the energy range 10-250 TeV fits well with a single power-law function dN/dE=(1.13±0.05stat±0.08sys)×10^(-14).(E/20 TeV)-309±0.06stat±0.02syscm^(-2) s^(-1) TeV^(-1).It is consistent with previous measurements by other *** opens a new window of γ-ray astronomy above 0.1 PeV through which new ultrahigh-energy γ-ray phenomena,such as cosmic PeVatrons,might be discovered.

关键词： γ-ray Crab Nebula extensive air showers cosmic rays

Reconstruction of Cherenkov image bymultiple telescopes of LHAASO-WFCTA

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Radiation Detection Technology and Methods 2022年第4期6卷 544-557页

作者： F.Aharonian q.An Axikegu L.x.Bai Y.x.Bai Y.W.Bao D.Bastieri x.J.Bi Y.J.Bi J.T.Cai zhe Cao zhen Cao J.Chang J.F.Chang E.S.Chen Liang Chen Liang Chen Long Chen M.J.Chen M.L.Chen q.H.Chen S.H.Chen S.z.Chen T.L.Chen Y.Chen H.L.Cheng N.Cheng Y.D.Cheng S.W.Cui x.H.Cui Y.D.Cui B.D’Ettorre Piazzoli B.z.Dai H.L.Dai z.G.Dai Danzengluobu Ddella Volpe K.K.Duan J.H.Fan Y.z.Fan z.x.Fan J.Fang K.Fang C.F.Feng L.Feng S.H.Feng x.T.Feng Y.L.Feng B.Gao C.D.Gao L.q.Gao q.Gao W.Gao W.K.Gao M.M.Ge L.S.Geng G.H.Gong q.B.Gou M.H.Gu F.L.Guo J.G.Guo x.L.Guo Y.q.Guo Y.Y.Guo Y.A.Han H.H.He H.N.He S.L.He x.B.He Y.He M.Heller Y.K.Hor C.Hou x.Hou H.B.hu q.hu S.hu S.C.hu x.J.hu D.H.huang W.H.huang x.T.huang x.Y.huang Y.huang z.C.huang x.L.Ji H.Y.Jia K.Jia K.Jiang z.J.Jiang M.Jin M.M.Kang T.Ke D.Kuleshov K.Levochkin B.B.Li Cheng Li Cong Li F.Li H.B.Li H.C.Li H.Y.Li J.Li Jian Li Jie Li K.Li WLLi xRLi xin Li xin Li YzLi zhe Li zhuo Li E.W.Liang Y.F.Liang S.J.Lin B.liu C.liu D.liu H.liu H.D.liu J.liu J.L.liu J.S.liu J.Y.liu M.Y.liu R.Y.liu S.M.liu W.liu Y.liu Y.N.liu W.J.Long R.Lu q.Luo H.K.Lv B.q.Ma L.L.Ma x.H.Ma J.R.Mao A.Masood z.Min W.Mitthumsiri Y.C.Nan z.W.Ou B.Y.Pang P.Pattarakijwanich z.Y.Pei M.Y.qi Y.q.qi B.q.qiao J.J.qin D.Ruffolo A.Sáiz C.Y.Shao L.Shao O.Shchegolev x.D.Sheng J.Y.Shi H.C.Song Yu.V.Stenkin V.Stepanov Y.Su q.N.Sun x.N.Sun z.B.Sun P.H.T.Tam z.B.Tang W.W.Tian B.D.Wang C.Wang H.Wang H.G.Wang J.C.Wang J.S.Wang L.P.Wang L.Y.Wang R.Wang R.N.Wang W.Wang x.G.Wang x.Y.Wang Y.Wang Y.D.Wang Y.J.Wang Y.P.Wang z.H.Wang z.x.Wang zhen Wang zheng Wang D.M.Wei J.J.Wei Y.J.Wei T.Wen C.Y.Wu H.R.Wu S.Wu x.F.Wu Y.S.Wu S.q.xi J.xia J.J.xia G.M.xiang D.x.xiao G.xiao G.G.xin Y.L.xin Y.xing z.xiong D.L.xu R.x.xu L.xue D.H.Yan J.z.Yan C.W.Yang F.F.Yang H.W.Yang J.Y.Yang L.L.Yang M.J.Yang R.z.Yang S.B.Yang Y.H.Yao z.G.Yao Y.M.Ye L.q.Yin N.Yin x.H.You z.Y.You Y.H.Yu q.Yuan H.Yue H.D.zeng T.x.zeng W.zeng z.K.zeng M.zha x.x.zhai B.B.zhang F.zhang H.M.zhang H.Y.zhang J.L.zhang L.x.zhang Li zhang Lu zhang P.F.zhang P.P.zhang R.zhang S.B.zhang S.R.zhang S. 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 ChengduSichuanChina Dublin Institute for Advanced Studies 31 Fitzwilliam Place2DublinIreland Max-Planck-Institut for Nuclear Physics P.O.Box 10398069029 HeidelbergGermany State Key Laboratory of Particle Detection and Electronics BeijingChina university of Science and Technology of china Hefei 230026AnhuiChina School of Physical Science and Technology&School of Information Science and Technology Southwest Jiaotong UniversityChengdu 610031SichuanChina College of Physics Sichuan UniversityChengdu 610065SichuanChina School of Astronomy and Space Science Nanjing UniversityNanjing 210023JiangsuChina Center for Astrophysics Guangzhou UniversityGuangzhou 510006GuangdongChina Key Laboratory of Dark Matter and Space Astronomy&Key Laboratory of Radio Astronomy Purple Mountain ObservatoryChinese Academy of SciencesNanjing 210023JiangsuChina 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 Hebei Normal university Shijiazhuang 050024HebeiChina School of Physics and Astronomy(zhuhai)&Sino-French Institute of Nuclear Engineering and Technology(zhuhai) Sun Yat-sen UniversityZhuhai 519000China School of Physics(Guangzhou) Sun Yat-sen UniversityGuangzhou 510275GuangdongChina Dipartimento di Fisica dell’Universitàdi Napoli“Federico II” Complesso Universitario di Monte Sant’Angelovia Cinthia80126 NapoliItaly School of Physics and Astronomy Yunnan UniversityKunming 650091YunnanChina Département de Physique Nucléaire et Corpusculaire Facultéde SciencesUniversitéde Genève

Introduction One of main scientiﬁc goals of the Large High Altitude Air Shower Observatory(LHAASO)is to accurately measure the energy spectra of different cosmic ray compositions around the‘knee’*** Wide Field-of-View(FoV)Cherenkov Telescope Array(WFCTA),which is one of the main detectors of LHAASO and has 18 telescopes,is built to achieve this *** telescopes are put together and point to connected directions for a larger *** Telescopes are deployed spatially as close as possible,but due to their own size,the distance between two adjacent telescopes is about 10 ***,the Cherenkov lateral distribution and the parallax between the two telescopes should be considered in the event building process for images crossing over the boundaries of FoVs of the *** event building method for Cherenkov images measured by multiple telescopes of WFCTA is *** performance of the shower measurements using the combined images is evaluated by comparing with showers that are fully contained by a virtual telescope in *** and conclusion It is proved that the developed event building process can help to increase the FoV of WFCTA by 30%while maintaining the same reconstruction quality,compared to the separate telescope reconstruction method.

关键词： method directions conclusion