Γ-RAY

作品数：248被引量：233H指数：8
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相关作者：李家政刘栋梁许云书相玉琳宋道军更多>>
相关机构：西南科技大学中国工程物理研究院河北工业大学天津大学更多>>
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Study on X-ray and electron-excited fluorescence spectroscopy of tungsten using TES
《Nuclear Science and Techniques》2025年第4期119-126,共8页Bing-Jun Wu Jing-Kai Xia Shuo Zhang Robin Cantor Wen-Tao Wu Jin-Hua Li Xiao-Ming Xie Zhi Liu 
supported by the National Key R&D Program of China(No.2022YFF0608303);the National Major Scientific Research Instrument Development Project(No.11927805);the NSFC Young Scientists Fund(No.12005134);the Shanghai-XFEL Beamline Project(SBP)(No.31011505505885920161A2101001);the Shanghai Municipal Science and Technology Major Project(No.2017SHZDZX02);the Open Fund of the Key Laboratory for Particle Astrophysics and Cosmology;Ministry of Education of China。
In the exploration of celestial bodies,such as Mars,the Moon,and asteroids,X-ray fluorescence analysis has emerged as a critical tool for elemental analysis.However,the varying selection rules and excitation sources i...
关键词：X-ray spectra X-ray emission spectra and fluorescence Superconducting transition-edge sensor X-RAY γ-ray spectrometers 
Layout optimization and performance analysis of large array of imaging atmospheric Cherenkov telescopes
《Chinese Physics C》2025年第3期161-170,共10页Zhipeng Zhang Ruizhi Yang Shoushan Zhang Zhen Xie Jiali Liu Liqiao Yin Yudong Wang Lingling Ma Zhen Cao 
supported by the National Nature Science Foundation of China(12041305);the National Youth Thousand Talents Program in China,and the Sichuan Science and Technology Department,Institute of High Energy Physics(2023YFSY0014,E25156U1);supported by the Sichuan Province Science Foundation for Distin-guished Young Scholars(2022JDJQ0043);the Sichuan Science and Technology Department(2023YFSY0014);the Xiejialin Foundation of IHEP(E2546IU2);the National Natural Science Foundation of China(12261141691),and the Innovation Project of IHEP(E25451U2)。
The large array of imaging atmospheric Cherenkov telescopes(LACT)is a planned array of 32 Cherenkov telescopes,each featuring 6-m diameter mirrors,to be constructed at the LHAASO site.This study focused on optimizing ...
关键词：IACT Γ-RAY LHAASO 
Revisit the γ-Ray Flare Associated with Blazar Mrk 421
《Research in Astronomy and Astrophysics》2024年第12期53-60,共8页Xiang-Tao Zeng Ze-Yuan Tang Jun-Hui Fan 
partially supported by the National Natural Science Foundation of China (NSFC, grant Nos. 12433004, U2031201, and 11733001);Guangdong Major Project of Basic and Applied Basic Research (grant No. 2019B030302001);the science research grants from the China Manned Space Project with No. CMS-CSST-2021-A06;the support for Astrophysics Key Subjects of Guangdong Province and Guangzhou City;The Key Laboratory for Astronomical Observation and Technology of Guangzhou also supports the work。
A Very High-energy(VHE) flare was observed by Major Atmospheric Gamma Imaging Cherenkov Telescopes on MJD 57788. This VHE flare was characterized by increased VHE flux and short timescales. In this study, we used one-...
关键词：radiation mechanisms non-thermal-(galaxies) BL Lacertae objects individual(Mrk 421)-galaxies jets 
Rotating attosecond electron sheets and ultra-brilliant multi-MeV γ-rays driven by intense laser pulses
《High Power Laser Science and Engineering》2024年第6期7-15,共9页Li-Xiang Hu Tong-Pu Yu Yue Cao Min Chen De-Bin Zou Yan Yin Zheng-Ming Sheng Fu-Qiu Shao 
supported by the National Natural Science Foundation of China(Nos.12105362,12375244,12275356,12135009,U2241281 and 12175310);the Natural Science Foundation of Hunan Province(No.2022JJ20042);the Innovation Foundation for Graduate Students(No.CX20220048)
Isolated multi-MeV γ-rays with attosecond duration,high collimation and beam angular momentum(BAM)may find many interesting applications in nuclear physics,astrophysics,etc.Here,we propose a scheme to generate such ...
关键词：isolated attosecond electron sheet isolated attosecondγ-ray nonlinear Thomson scattering 
Generation of medical isotopes ^(47)Sc,^(67)Cu through laser-induced(γ,p)reaction
《Nuclear Science and Techniques》2024年第11期219-227,共9页Jian-Yao Zhang Di Wu Hao-Yang Lan Huan-Gang Lu Jia-Xin Liu Jian-Feng Lv Mei-Zhi Wang Xue-Qing Yan 
Short-lived medical isotopes and their generators are typically produced in nuclear reactors and cyclotrons that require extensive facilities.However,considering the environmental concerns and economic costs of these ...
关键词：Photonuclear reaction Laser-drivenγ-Ray Medical isotope 
Detection of Increasingγ-Ray Emissions from 4FGL J1718.5+4237 with Fermi-LAT
《Research in Astronomy and Astrophysics》2024年第8期169-174,共6页Jiao Zheng Pengfei Zhang Li Zhang 
supported in part by the National Natural Science Foundation of China(NSFC,grant Nos.12233006 and 12163006);the Basic Research Program of Yunnan Province No.202201AT070137;the joint foundation of Department of Science and Technology of Yunnan Province and Yunnan University No.202201BF070001-020;support by the Xingdian Talent Support Plan—Youth Project。
We report a gradual brighteningγ-ray source,4FGL J1718.5+4237,in 0.1-500.0 GeV,which may be associated with a blazar NVSS J171822+423948 with a redshift of~2.7.We analyzed 15.25 yr ofγ-ray data recorded by the Large...
关键词：GALAXIES active-blazars individual(4FGL J1718.5+4237) 
Lobe-dominatedγ-Ray Emission of Compact Symmetric Objects
《Research in Astronomy and Astrophysics》2024年第2期196-205,共10页Ying-Ying Gan Hai-Ming Zhang Xing Yang Ying Gu Jin Zhang 
supported by the National Natural Science Foundation of China(grants 12022305,11973050,and 12203022)。
Theγ-ray emitting compact symmetric objects(CSOs)PKS 1718-649,NGC 3894,and TXS 0128+554 are lobedominated in the radio emission.In order to investigate theirγ-ray radiation properties,we analyze the~14yr Fermi/LAT o...
关键词：GALAXIES active-galaxies jets-radio continuum galaxies-gamma-rays GALAXIES 
Artificial neural network-based method for discriminating Compton scattering events in high-purity germaniumγ-ray spectrometer
《Nuclear Science and Techniques》2024年第2期64-84,共21页Chun-Di Fan Guo-Qiang Zeng Hao-Wen Deng Lei Yan Jian Yang Chuan-Hao Hu Song Qing Yang Hou 
This work was supported by the National Key R&D Program of China(Nos.2022YFF0709503,2022YFB1902700,2017YFC0602101);the Key Research and Development Program of Sichuan province(No.2023YFG0347);the Key Research and Development Program of Sichuan province(No.2020ZDZX0007).
To detect radioactive substances with low activity levels,an anticoincidence detector and a high-purity germanium(HPGe)detector are typically used simultaneously to suppress Compton scattering background,thereby resul...
关键词：High-purity germaniumγ-ray spectrometer Pulse-shape discrimination Compton scattering Artificial neural network Minimum detectable activity 
Measurement of the high energyγ-rays from heavy ion reactions usingČerenkov detector被引量：1
《Nuclear Science and Techniques》2024年第2期123-130,共8页Da-Wei Si Yan Zhou Sheng Xiao Zhi Qin Dong Guo Yu-Hao Qin Yi-Jie Wang Bo-Yuan Zhang Bai-Ting Tian Zhi-Gang Xiao 
This work was supported by the Ministry of Science and Technology(No.2020YFE0202001);by the National Natural Science Foundation of China(Nos.11961141004 and 12205160);Tsinghua University Initiative Scientific Research Program.
The energetic bremsstrahlung photons up to 100 MeV produced in heavy ion collisions can be used as a sensitive probe for short-range correlation in atomic nuclei. The energy of the γ-rays can be measured by collectin...
关键词：Bremsstrahlungγ-rays Čerenkov GEANT4 Energy resolution Direction reconstruction Hough transform 
由超拍电子伏特加速器产生的超高能伽马射线气泡被引量：3
《Science Bulletin》2024年第4期449-457,共9页LHAASO Collaboration Zhen Cao Chuandong Gao Cong Li Ruo-Yu Liu Ruizhi Yang 
supported in China by the National Key R&D Program of China(2018YFA0404201,2018YFA0404202,2018YFA0404203,and 2018YFA0404204);the National Natural Science Foundation of China(12105294,12022502,12261160362,12205314,U1931201,and U2031105);the Youth Innovation Promotion Association of Chinese Academy of Sciences(2022010);in Thailand by the National Science and Technology Development Agency(NSTDA)and National Research Council of Thailand(NRCT):High-Potential Research Team Grant Program(N42A650868).
We report the detection of aγ-ray bubble spanning at least 100deg2 in ultra-high energy(UHE)up to a few PeV in the direction of the star-forming region Cygnus X,implying the presence super PeVatron(s)accelerating pro...
关键词：Cosmic rays γ-rays Interstellar medium Star cluster 
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