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Dose coefficients for unknown radionuclides



Dear Radsafers,


Setting up some new criteria for low level waste requires to determine the
potential impact of these radionuclides : Ar39, Ar42, Kr81, Kr85, Nb91,
Nb92, Gd150, Dy154, Ho163, Bi208, Po208, Po209, Es252. I cannot find the
dose coefficients (external and internal exposure) of these radionuclides
in the federal guidances 11 and 12.


Questions :


1. Why are these radionuclides not dealt with in the guidance ?

2. Are you aware of a reference where I could find these ?

3. Do you know if there is a way of calculating a dose coefficients for such
radionuclides ?

4. Who shall I contact (ORNL) ?


Regards,







***************************************************
Jean-Michel MURE
French National Radwaste Management Agency
(ANDRA)
Safety Division
Security and Radiological Protection Department
Parc de la Croix Blanche
1-7, rue Jean Monnet
92290 CHATENAY MALABRY Cedex
FRANCE
****************************************************
Tel : 33 1 46 11 83 74
Fax : 33 1 46 11 80 13
****************************************************
Email : jm.mure@andra.fr
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