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Design and performance study of the HEPP-H calorimeter onboard the CSES satellite 被引量:1
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作者 yu-Fei Nan Zheng-Hua An +14 位作者 Hang-Xu Li Xiao-yun Zhao Xiang-Yang Wen Da-Li Zhang Shu-Guang Cheng Xin-Qiao Li Hui Wang Xiao-Hua Liang Feng Shi Yan-Bing Xu xiao-xia yu Ping Wang Hong Lu Huan-yu Wang yu-Qian Ma 《Research in Astronomy and Astrophysics》 SCIE CAS CSCD 2018年第12期105-110,共6页
The China Seismo-Electromagnetic Satellite(CSES) will investigate iono-magnetospheric disturbance and will monitor the temporal stability of the inner Van Allen radiation belts.In particular,the mission aims at confir... The China Seismo-Electromagnetic Satellite(CSES) will investigate iono-magnetospheric disturbance and will monitor the temporal stability of the inner Van Allen radiation belts.In particular,the mission aims at confirming the existences of a temporal correlation between the occurrence of earthquakes and the observation of electromagnetic disturbances, plasma fluctuations and anomalous fluxes of high-energy particles precipitating from the inner Van Allen belt in space.The high energy detector of the High Energy Particle Package(HEPP-H) is a payload onboard CSES and is designed for detecting electrons(2–50 MeV) and protons(20–200 MeV) in its 500 km orbit above Earth.CSES was launched in February 2018.In this paper, the instrumentation and development of the HEPP-H calorimeter are described.The calibration with beam particles(electrons and protons) is discussed in detail. 展开更多
关键词 telescopes instrumentation:detectors site testing
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Interlayer interaction mechanism and its regulation on optical properties of bilayer SiCNSs
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作者 孔双双 刘卫凯 +4 位作者 于晓霞 李亚林 杨留柱 马昀 房晓勇 《Frontiers of physics》 SCIE CSCD 2023年第4期227-238,共12页
Silicon carbide nanosheets(SiCNSs)have a very broad application prospect in the field of new two-dimensional(2D)materials.In this paper,the interlayer interaction mechanism of bilayer SiCNSs(BL-SiCNSs)and its effect o... Silicon carbide nanosheets(SiCNSs)have a very broad application prospect in the field of new two-dimensional(2D)materials.In this paper,the interlayer interaction mechanism of bilayer SiCNSs(BL-SiCNSs)and its effect on optical properties are studied by first principles.Taking the charge and dipole moment of the layers as parameters,an interlayer coupling model is constructed which is more convenient to control the photoelectric properties.The results show that the stronger the interlayer coupling,the smaller the band gap of BL-SiCNSs.The interlayer coupling also changes the number of absorption peaks and causes the red or blue shift of absorption peaks.The strong interlayer coupling can produce obvious dispersion and regulate the optical transmission properties.The larger the interlayer distance,the smaller the permittivity in the vertical direction.However,the permittivity of the parallel direction is negative in the range of 150-300 nm,showing obvious metallicity.It is expected that the results will provide a meaningful theoretical basis for further study of SiCNSs optoelectronic devices. 展开更多
关键词 SiC nanosheets bilayer nanosheets interlayer coupling model bandgap structure optical properties
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