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 2.GQ Geiger Muller Counter
 Monitoring I-131, in me!
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1 Posts

Posted - 07/17/2016 :  09:04:23  Show Profile  Reply with Quote
First off, I had recently bought to GMC-320Plus (v4) models. As I wanted to play with them a bit as I am the lucky recipient of a nice does of I-131 for thyroid cancer.

After getting my 150 mCi of I-131, I went home and walked into my house. My counters upstairs and downstairs were already freaking out. Alarm and all.

5 days in, and now I don't make it go over 10,000 CPM...

Just thought I would post that it has been really interesting looking at the data. I leave one in my bedroom, and one down in my living room(where I don't go) Lets family members see how much radiation I am leaking.

Reply #1


193 Posts

Posted - 07/18/2016 :  02:07:58  Show Profile  Reply with Quote
Cool. Do you share the data with us?

GMC-300E+ V4.20 with sbt-11a alpha tube

My statements are "stuff-a-hobbyist-says" and not in any way professional.
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16 Posts

Posted - 08/29/2016 :  11:38:21  Show Profile  Reply with Quote
I recall several years ago when my wife needed Tc-99m. She was about 5m away from my GMC300 w/4011 tube and it was reading like 400CPM. Right up against her midsection it was ~20,000. Scary ****!
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Reply #3


1115 Posts

Posted - 09/29/2016 :  19:44:35  Show Profile  Reply with Quote
~20,000 CPM. Yes. that level radiation kills cells.
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