Determination of the proton latent track dimensions in CR-39 detectors using small angle neutron scattering.
Fiche publication
Date publication
juillet 2008
Auteurs
Membres identifiés du Cancéropôle Est :
Pr FROMM Michel
Tous les auteurs :
Lounis-Mokrani Z, Badreddine A, Mebhah D, Imatoukene D, Fromm M, Allab M
Lien Pubmed
Résumé
The radial size of the damaged region induced by the proton beams in the CR-39 has been determined by small angle neutron scattering (SANS). The radii of the track core have been estimated by SANS technique using Guinier-plots and have been found to be about 0.7 +/- 0.2, 0.9 +/- 0.4 and 1.5 +/- 0.4 nm at the fluences of 10(11), 10(12) and 5 x 10(12) cm(-2), respectively. These results are compared with those calculated using Waligorski radial dose distribution and those obtained by Yamauchi et al. using atomic force microscopy (AFM) and UV spectrophotometer. Finally, a correlation between the present results and those obtained in the previous work permits to propose a chemical structure of the proton latent track in CR-39. (C) 2008 Elsevier Ltd. All rights reserved.
Référence
Radiat Meas. 2008 Jul;43 1:S41-7.