Friday, June 24, 2011

6/24/2011 | Counts near 100 CPM (5x background) at Driggs, Idaho Ustream Geiger counter

Source: CerebralProgrammer Ustream channel as recorded on YouTube
Date: Recording started June 24, 2011 12:41:53 AM CST

Per the Geiger counter's owner (CerebralProgrammer) 20 CPM (counts per minute) is the normal background radiation level.  I first noticed an unusually high reading last night at about midnight CST. Tonight I have recorded a 2 minute or so sampling of high readings where 100 CPM is touched or exceeded, or 5x background.

Ludlum Model 177 ratemeter with a victoreen 490-31 detector scale 1x CPM
Each black notch represents 20 CPM
Click here for live readings

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