[ RadSafe ] protraction enhancement effect

Dixon, John E. (CDC/ONDIEH/NCEH) gyf7 at cdc.gov
Thu Sep 2 13:04:12 CDT 2010

So does HORMESIS figure into the mix?
John E. Dixon


From: radsafe-bounces at health.phys.iit.edu on behalf of Otto G. Raabe
Sent: Wed 9/1/2010 3:43 PM
To: Jerry Cohen; The International Radiation Protection (Health Physics) Mailing List; The International Radiation Protection (Health Physics) Mailing List
Subject: Re: [ RadSafe ] protraction enhancement effect

At 11:13 AM 9/1/2010, Jerry Cohen wrote:
>Does this mean that if I receive a 500 rem dose in one minute. it is not as
>serious as if I received the same dose uniformly over  50 years?

The inverse dose rate effect does not apply to a single acute exposures.

The inverse dose rate effect is a contrast of lifetime protracted or
fractionated exposures.


Prof. Otto G. Raabe, Ph.D., CHP
Center for Health & the Environment
University of California
One Shields Avenue
Davis, CA 95616
E-Mail: ograabe at ucdavis.edu
Phone: (530) 752-7754   FAX: (530) 758-6140
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