Real-time Environmental Monitoring

This topic has 4 replies, 3 voices, and was last updated 9 years, 1 month ago by wiretap.

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March 10, 2015 at 4:25 pm #1512
Ally
Participant
Hey all,

I’m running Unit number 42000001 in Orlando, FL, USA and was having some trouble with my Unit – it’s a very old model, one of the first Radu produced and needs custom firmware, anyway, I removed it from it’s position outside and was running it in my basement office for a few minutes when I noticed CPM’s of 25-35. My avg outside, 20 feet away (and above ground level) is 5-7 CPM.

I have done a Radon test in my basement level before (although not in this particular room) and it came back ‘normal’.

Also, the unit is now back outside and it’s now reporting 15 CPM – significantly higher than it’s ever been before, out there.

So, how long before my hair falls out and I do an “Alexander Litvinenko” (i.e. die horribly)?
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2. what_is_going_on.png
March 11, 2015 at 9:56 am #1515
uRADMonitor
Keymaster
I see it decreased, why?
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March 11, 2015 at 11:11 am #1517

Ally
Participant

I put it back outside. It continued to measure ~15 cpm for 40 minutes or so, then dropped back to its usual 6-7.

March 11, 2015 at 10:46 pm #1561

uRADMonitor
Keymaster

Do you have / or can get, any other portable dosimeter to run a parallel test?

The max level reached in your basement is not a concern, still it should be a good idea to double check it.

March 12, 2015 at 10:52 pm #1617

wiretap
Participant

It may not be radon in the air, which most radon tests look for. It could be decays that are being picked up from the concrete or whatever your basement wall/floor is made out of. Go ahead and do a test where you put it on a granite counter top.. you’ll see similar readings. Depending on the surface you have it mounted to or set on top of, you could be picking up decay counts from that.
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