Determination of the proton latent track dimensions in CR-39 detectors using small angle neutron scattering

• Published in: Radiation measurements Vol. 43; pp. S41 - S47
• Main Authors: Lounis-Mokrani, Z., Badreddine, A., Mebhah, D., Imatoukene, D., Fromm, M., Allab, M.
• Format: Journal Article Conference Proceeding
• Language: English
• Published: Oxford Elsevier Ltd 01.08.2008; Elsevier
• Subjects: CR-39; Earth sciences; Earth, ocean, space; Exact sciences and technology; Geochronology; Isotope geochemistry. Geochronology; Latent track radius; Proton; Radial size; SANS; Proton; CR-39; SANS; Latent track radius; Radial size; diffusion; detection; radiation damage; neutrons; correlation; particle track; protons; dimensions
• ISSN: 1350-4487; 1879-0925
• DOI: 10.1016/j.radmeas.2008.04.081

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 × 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.