The article references dose equivalent to a full body CT scan, that is 10 to 30 mSv.
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Illuminating Earth's mysterious gamma ray flashes
http://www.abc.net.au/science/articles/2013/10/18/3870631.htm
Einstein and Plank would scorn you for calling them Gamma Rays :)
Quote from: Broadzilla on Oct 18, 2013, 03:24
Einstein and Plank would scorn you for calling them Gamma Rays :)
I just linked the article but come to think of it Astronomers call the mysterious deep space events Gamma Ray bursts.
From a nuclear perspective gamma and X-ray are clearly described by source, what happens when the source is unknown? Quasar streams would seem to fit X-Ray but pulses from Super Novas are the decay of a star with much of it from fusion that would seem to fit gamma rays. Perhaps Gamma is becoming the "Klennex" of the high energy photon world.