Re: Raowool Insulation Isotopic Content

[jgbarnes@ix.netcom.com (JAMES BARNES)]

We were doing the spectroscopy for qualitative reasons, so did not get an exact 
mass of sample.  The count room HP estimates the mass at 5 grams.

We originally got into this because our D&D HP Tech was having fits trying to 
frisk out the pipe lagging.  Unfortunately, I don't know how many counts he was 
seeing on the piping, but it was detectable and it was enough that he couldn't 
clear the material at our 100 net cpm limit (which leads me to believe he was 
seeing 50-100 counts above background).

I suspect that the insulation is active enough to make a moderately interesting 
demonstration but nothing like a bit of fiesta-ware.

Jim Barnes
jgbarnes@ix.netcom.com
-----------------------------------------

You wrote: 
>
>Hello, Radsafers!
>
>This question is for Jim Barnes, but perhaps of general interest.  What is
>the sample size that you used to detect the nuclides and amounts?  I'm
>curious for radiation protection, but also considering whether this stuff
>might be a good demo item of commercial unlicensed products containing
>radioactive materials, with a healthy enough signal to get a rise on a GM.
>
>
>Thanks for the information.
>
>Kristin
>
>All comments herein contained are my own opinions and/or experiences and
>are not necessarily those of my employer or institution.
>
>************************************************************************
>Kristin Erickson, Radiation Safety Officer
>Office of Radiation, Chemical and Biological Safety
>C124 Research Complex-Eng.
>Michigan State University
>East Lansing, Michigan 48824
>Telephone: (517) 355-5008   Fax: (517)353-4871   Email: 10525kfb@msu.edu
>************************************************************************
>
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