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


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Titre de la revue : Radiation Protection Dosimetry Volume : 128 N° : 1 Pagination : 83-89 Date de publication : 01/01/2008

Type de document > *Article de revue

Mots clés > débit de dose, in situ, spectrométrie gamma

Unité de recherche > IRSN/DEI/STEME/LMRE

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

Date de publication > 01/01/2008

Résumé

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.