Gamma Rays Made on Earth

Gamma Rays Made on Earth
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地球上产生的伽马射线

DOI：
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发表时间：
2005
期刊：
Science
影响因子：
56.9
通讯作者：
Laurell Goeran
Laurell Goeran
中科院分区：
综合性期刊1区
文献类型：
--
作者：
Counter S Allen;Buchanan Leo H;Ortega Fernando;Jacobs Anthony B;Laurell Goeran

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大约十年前，研究人员首次在地球大气层中观察到地面伽马射线闪光。在他看来， 伊南 突出显示该报告 史密斯 等人发现这种闪光比之前认为的要常见得多，而且它们发生的能量甚至更高，高达 20 MeV。这些闪光与闪电有关，可能是由能量高达 20 MeV 的强电子束引起的，这些电子束在高层大气中加速向上，但其产生的详细机制仍有待阐明。
About 10 years ago, researchers first observed terrestrial gamma-ray flashes in Earth9s atmosphere. In his Perspective, Inan highlights the report by Smith et al ., who find that such flashes are much more common than previously suggested and that they occur at even higher energies, up to 20 MeV. The flashes are associated with lightning and are probably caused by intense electron beams with energies of up to 20 MeV that are accelerated upward in the upper atmosphere, but the detailed mechanisms of their generation remain to be elucidated.