[ RadSafe ] observations on iodized salt

[Scott Davidson]

I would suspect not, the likely culprit would be the potassium-40
which has an extremely long half life.

On Thu, Mar 24, 2011 at 9:05 AM, John Gerald Center, Jr
<john.center at wmich.edu> wrote:
> We use a Ludlum model 14C and a pancake probe with the 0.1 scale calibrated to cpm.  We would take a couple of tablespoons of Morton Lite Salt, a mixture of iodized salt and potassium chloride, and count it during radiation safety training classes.  Background was less than 1000 cpm, a newly opened package of this salt would peg the meter on the 0.1 scale.  Older, opened containers (2 years) still near max reading (6000 cpm).  I used it none the less.  I have never tried to count plain iodized salt.  Would I get different results?
>
> John
>
> John G. Center, Jr.
> Radiation Safety Officer
> 3922 Wood Hall
> Western Michigan University
> 1903 W. Michigan Ave.
> Kalamazoo, MI  49008-5410
>
> Office (269) 387-5933
> Cell  (269) 744-0996
> E-mail: john.center at wmich.edu
> _______________________________________________
> You are currently subscribed to the RadSafe mailing list
>
> Before posting a message to RadSafe be sure to have read and understood the RadSafe rules. These can be found at: http://health.phys.iit.edu/radsaferules.html
>
> For information on how to subscribe or unsubscribe and other settings visit: http://health.phys.iit.edu
>