[ RadSafe ] observations on iodized salt

John Gerald Center, Jr john.center at wmich.edu
Thu Mar 24 08:05:02 CDT 2011

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 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

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