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Visit to the Semipalatinsk Nuclear Test Site » Radiation at Ground Zero

Radiation at Ground Zero

Measurement of gamma-only exposure rate at ground level, P-1 test site, using an Eberline HP-270 energy-compensated GM tube. This tube has a sensitivity of 1200 CPM / mR / hr. Readings on the surface near Ground Zero are in the range of 1-2 mR / hr.


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