Determination of uranium and thorium contents inside different materials using track detectors and mean critical angles

Citation
Ma. Misdaq et al., Determination of uranium and thorium contents inside different materials using track detectors and mean critical angles, APPL RAD IS, 51(2), 1999, pp. 209-215
Citations number
15
Categorie Soggetti
Multidisciplinary
Journal title
APPLIED RADIATION AND ISOTOPES
ISSN journal
09698043 → ACNP
Volume
51
Issue
2
Year of publication
1999
Pages
209 - 215
Database
ISI
SICI code
0969-8043(199908)51:2<209:DOUATC>2.0.ZU;2-9
Abstract
The critical angles of the CR-39 (theta(c)) and LR-115 type II (theta(c)') solid state nuclear track detectors (SSNTD) for detecting alpha-particles e mitted by the uranium and thorium series have been evaluated by calculating the corresponding ranges of the emitted alpha-particles in different mater ial samples and in the SSNTD studied. The influence of the emitted alpha-pa rticles initial and residual energies on the critical angles of the SSNTD s tudied has been investigated. The uranium and thorium contents of different geological samples have been evaluated by exploiting data obtained for the critical angles of the CR-39 and LR-115 type II solid state nuclear track detectors and measuring the corresponding densities of tracks. (C) 1999 Els evier Science Ltd. All rights reserved.