Quote:
Originally Posted by Crawford
I thought there was a NYT article on Lake Baikal as a center for research on Askaryan Effect not too long ago.
But my physics knowledge ignominiously ended in a crappy 11th grade AP score, so my understanding is next-to-nothing.
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That (Baikal-GVD) is not an Askaryan detector either, but an optical Cerenkov detector. But to first approximation for anybody outside high-energy neutrino astrophysics (so basically everybody), it's more or less the same thing with slightly different technology (photomultipliers/SIPM's to measure ~optical photons vs. antennas to measure VHF/UHF radio emission) and energy regimes (~PeV vs ~EeV).
(Askaryan radiation is a form of Cerenkov radiation---it's the coherent Cerenkov radiation at wavelengths large compared to the size of the particle shower with a relative charge excess. Or equivalently, you can think of it as the Cerenkov radiation from a macroscopic charge excess as opposed to from individual charged particles).
And speaking of the NYT, the first time I was in Antarctica I accidentally cameod in one of their pictures
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