Simultaneous Observations of Extensive Air Showers and Underground Muons at Soudan 2
W.W.M. Allison, G. Barr, C. Brooks, J. H. Cobb et autres
We have built a small proportional tube air shower array on the surface above the Soudan 2 proton decay detector in Soudan, Minnesota, USA. This array, in coincidence with the underground detector, allows simultaneous surface and underground observations of high energy cosmic …
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