Re: 10CFR20 mistake?

["JOHN JACOBUS" <JENDAY1@EMAIL.MSN.COM>]

Jack Couch wrote:

. . .

20.2202 (a)(1)(iii) "A shallow-dose equivalent to the skin or extremities

of 250 rads(2.5 Gy)..."

Note the units used here for shallow-dose equivalent. It is the same in

earlier editions of 10CFR20. In (b)(1)(iii) the units are in rems (Sv).



Do you suppose there is a reason behind the difference in units, or is it

just another governmental boo-boo?

. . .



These units are used as the absorbed dose would lead to an acute,

deterministic response, e.g. erythema. As such, there is no associated

quality factor.



-- John



John Jacobus, MS

Certified Health Physicist

3050 Traymore Lane

Bowie, MD 20715-2024

jenday1@email.msn.com (H)



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