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Enhancing Nuclear Safety


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Specific activity to H*(10) conversion coefficients for in situ gamma spectrometry


Journal title : Radiation Protection Dosimetry
Volume : 128
Issue : 1
Pagination : 83-89
Publication date : 01/01/2008

Document type > *Article de revue

Keywords > dose rate, gamma spectrometry, in situ

Research Unit > IRSN/DEI/STEME/LMRE

Authors > BOUISSET Patrick, CAGNAT Xavier, GURRIARAN Rodolfo, LEMERCIER Mickael

Publication Date > 01/01/2008

Summary

The typical situations found in in situ gamma spectrometry have been simulated by Monte Carlo techniques to obtain the energy spectra of the photon fluence rate existing at 1 m above ground. The main difficulty found with the model is its slow convergence. A method to speed up the calculation has been derived. The results of the model have been thoroughly tested against existing data. In a final stage, the specific activity to H*(10) conversion coefficients have been derived for the typical scenarios encountered in the in situ gamma spectrometry.

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