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

Authors
Journal
Radiation Measurements
1350-4487
Publisher
Elsevier
Publication Date
Volume
43
Identifiers
DOI: 10.1016/j.radmeas.2008.04.081
Keywords
  • Cr-39
  • Proton
  • Latent Track Radius
  • Radial Size
  • Sans
Disciplines
  • Chemistry

Abstract

Abstract 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.

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