[ RadSafe ] observations on iodized salt

[John Gerald Center, Jr]

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