Gamma‐ray bursts of atmospheric origin in the MeV energy range
Gamma‐ray bursts of atmospheric origin in the MeV energy range
复制标题
MeV 能量范围内源自大气的伽马射线暴
DOI：
10.1029/2000gl003750
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发表时间：
2000
影响因子：
5.2
通讯作者：
A. Pagliarin
中科院分区：
文献类型：
--
作者：
M. Brunetti;S. Cecchini;M. Galli;G. Giovannini;A. Pagliarin
首次观测到 MeV 能量范围内大气起源的向下伽马射线暴。测量是在地面（海拔2005米）用NaI(T1) 10×20Ø cm闪烁探测器进行的。观察到两种事件：由于雨水冲刷，辐射缓慢增加到 3 MeV 以下，以及伽马射线的微小范围爆发高达 10 MeV。这里分析了这些最后事件与扰动天气条件的对应关系，并考虑了与闪电活动的相关性。
Downward gamma ray bursts of atmospheric origin in the MeV energy range were observed for the first time. The measurements were carried out on ground (at 2005 m above sea level) with a NaI(T1) 10×20Ø cm scintillation detector. Two kinds of events were observed: slow increases of the radiation below 3 MeV due to rain washout, and minute range bursts of gamma rays up to 10 MeV. The correspondence of these last events with perturbed weather conditions is here analyzed and the correlation with lightning activity is considered.