Rain storm during calibration spectrum

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Geoff
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Joined: 01 May 2015, 12:21
Location: Marathon County, Wisconsin
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Rain storm during calibration spectrum

Post by Geoff » 04 Aug 2017, 16:38

It was a normal cloudy August day here in Anchorage. I setup my spectrometer with a Na-22 source for calibration, then left for the day to run chores and what not. While I was gone some rain fall. My count rate vs time shows a 13 counts per second increase shortly after the rain started, from 218 cps to 231 cps. The extra activity peaked at 235 cps and after 8 hours has fallen back to around 220 cps.
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Geoff Van Horn

Former Alaskan living in rural Wisconsin

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