Accident Dose Assessment Codes

[Jim Hardeman <Jim_Hardeman@mail.dnr.state.ga.us>]

Fellow RADSAFE'rs and REPLAN'ers ...

Do any of you have any strong opinions regarding
the use of "sector-averaged" meteorological codes
and methods for estimation of radiological accident
consequences? Somewhere back in the grey
matter, I seem to recall that sector-averaging can
lead to underestimation of peak doses / dose rates
by an order of magnitude or more, depending on
source-receptor distance and dispersion
parameters. 

Any comments?

Jim Hardeman, Manager
Environmental Radiation Program
Environmental Protection Division
Georgia Department of Natural Resources
4244 International Parkway, Suite 114
Atlanta, GA 30354
(404) 362-2675  fax: (404) 362-2653
Jim_Hardeman@mail.dnr.state.ga.us
hardeman@mindspring.com