Re: DCF

[Frederick.Jaeger@rfets.gov]

I beleive what one is seeing in the the two different values is the result of a
change from ICRP 30 to ICRP48.
ICRP 48 changed the distribution fractions for Pu.
The most significant changes (ICRP30 to ICRP 48) were for bone from 0.45 to
0.50; Liver, 0.45 to 0.30; and all others form 0.1 to 0.20
The increase in the fraction to the bone results in an overall reduction in the
ALI because the bone surface is limiting organ.

The increase in the fraction to the other organs increases the dose to the
remainder of the body where before the liver was dominant in the effect to the
remainder.

ICRP 48 is dated 1986; ICRP 30 is dated 1979.

Frederick J. Jaeger, CHP
DOE Rocky Flats Field Office
frederick.jaeger@rfets.gov





From: "Hooda, Benny" <HoodaB@wipp.carlsbad.nm.us> on 02/25/2000 07:50 AM

To:   Multiple recipients of list <radsafe@romulus.ehs.uiuc.edu>@SMTP@rffo
cc:
Subject:  DCF

Radsafers:
Does any one have an opinion regarding use of  Committed Effective Dose
Equivalent conversion factor for Pu-239 (class W, inhalation) from FGR 11
and Radiological Health Handbook or from DOE/EH-0071. The values listed are
different 4.29E 2 rem/curie for FGR 11 and 5.10 E 2 rem/curie for
DOE/EH-0071.
Thanks,




-/-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/
Benny Hooda,
Senior Scientist
Westinghouse Electric Corporation
WIPP
P.O.Box 2078 M/S 910-20
Carlsbad, NM 88221
(505)234-8932 Voice
(505)885-0974 Fax
Hoodab@WIPP.Carlsbad.NM.US
Hoodab@caverns.com
/-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/ /-/
************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html






************************************************************************
The RADSAFE Frequently Asked Questions list, archives and subscription
information can be accessed at http://www.ehs.uiuc.edu/~rad/radsafe.html