Problem with new counter.

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2 years 5 months ago #5085 by Bert490
Replied by Bert490 on topic Problem with new counter.
After 8 hours your new setup looks stable, averaging ~15 CPM. Nice job!
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2 years 5 months ago #5087 by Simomax
Replied by Simomax on topic Problem with new counter.
It looks to be working well. I notice a spike yesterday but I am assuming that was caused either accidentally or on purpose, but more interestingly is the drop in counts from your indoor counter to the outdoor counter. What are the differences before and after? Is the outdoor unit a different tube to the indoor unit or is it possibly radon causing higher counts indoors?

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2 years 5 months ago #5088 by FSM19
Replied by FSM19 on topic Problem with new counter.
Actually its probably a combination. The new tube is a little less sensitive, but I know the background count in my workshop/lab is relatively high, it's a semi-basement dug into the groundrock and built from local stone. Local rock is schist. I have had it largely sealed with ceramic tiles and a slurry. The indoor count is probably 50% higher than I had in the UK. I am also about 25 miles from a disused uranium mine, and about 4 miles from a lead mine, so I would guess that the radon count would be relatively high.

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2 years 5 months ago #5115 by FSM19
Replied by FSM19 on topic Problem with new counter.
Outage today due to Internet issue following a storm.
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2 years 5 months ago #5150 by FSM19
Replied by FSM19 on topic Problem with new counter.
There will be some outages this evening whilst I do some mods.

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2 years 5 months ago #5173 by FSM19
Replied by FSM19 on topic Problem with new counter.
Now planning to be offline for a few days while I do a few modifications, seems preferable to going on and offline.
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