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Re: dose conversion factor for radon exposition



Nicolas,

I'm not sure what value you obtained from James et al., as I don't have that. ICRP Report 65 (from 1994) recommends a dose conversion convention--which is not exactly a dose conversion coefficient, but a way to approximate the dose that would have equal detriment to a given exposure to radon progeny. That report gives values of 1.1 mSv per (mJ h per m^3) for exposures at home and 1.4 mSv per (mJ h per m^3) for exposures at work. In historical units, these are 4 mSv per WLM and 5 mSv per WLM, respectively. See Tables 7 and 8 of ICRP 65.

Hope this helps. I'm sure others will have more.

Duane.

Duane Schmidt, CHP
U.S. Nuclear Regulatory Commission
NMSS/DWM/DCB
dws2@nrc.gov

>>> BRISSON Nicolas <nicolas.brisson@opri.fr> 5/17/2000 5:28:16 AM >>>
Hi Radsafers


In order to estimate the dose due to radon exposition I used the methods
of ICRP and the dose conversion factor presented by James and al. (1988)
based on the value of the equilibrium factor and the unattached
fraction.

I'd like to know if other dose conversion factor exist and in which
publication I could find them.
Please don't send any web adresses I unfortunately don't have access to
the net.


Nicolas Brisson
Radiation safety engineer
OPRI
nicolas.brisson@opri.fr 
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