Terrestrial gamma‐ray flash electron beam geometry, fluence, and detection frequency
作者： B. E. Carlson , T. Gjesteland , N. Østgaard
DOI: 10.1029/2011JA016812
关键词: Photon 、 Physics 、 Electron 、 Cathode ray 、 Terrestrial gamma-ray flash 、 Context (language use) 、 Geometry 、 Geomagnetic latitude 、 Population 、 Optics 、 Fluence
摘要: [1] Terrestrial gamma-ray flashes (TGFs) are associated with emission of detectable beams electrons into space. In this paper we use simulations TGF and electron beam escape from the atmosphere to determine how geometry fluence such events depend on angular distribution source photons. Given a photon source, depends geomagnetic latitude but can be well-predicted by tracing disk at 57 km altitude along field satellite orbit. The then used infer relative detection probabilities in context variety sources intensities. Analysis frequency detections suggests existence population emitted TGFs too faint detected as
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