Title
Study of thermoluminescence of green quartz pellets for low dose dosimetry
Date Issued
01 December 2020
Access level
metadata only access
Resource Type
journal article
Author(s)
Cuevas-Arizaca E.E.
Rondón R M.
Rocca R.R.
Gomes M.B.
Cortez B.
Takara J.H.
Rao T.G.
Chubaci J.F.D.
Campos L.L.
Watanabe S.
Universidad Federal de Sao Paulo
Publisher(s)
Elsevier Ltd
Abstract
Green quartz is usually studied for low dose TL dosimetry of gamma and X radiation. The aim of the present work is the dosimetric characterization of natural green quartz in the dose range of 0.47 mGy up to 1000 mGy of gamma and X radiation. Green quartz pellets were produced by cold pressing green quartz powder. The pellets are very sensitive to gamma and X radiation with main prominent TL peak at 230 °C. The TL sensitivity of MTS-N (LiF:Mg,Ti) and green quartz pellets were also compared. The dose response curve presented linear behavior in the dose range studied. The glow curve was deconvoluted. Kinetic parameters such as trap depth, kinetic order (b) and frequency factor (s) are determined. The TL photon energy dependence was also evaluated.
Volume
177
Language
English
OCDE Knowledge area
Física de partículas, Campos de la Física
Electroquímica
Subjects
Scopus EID
2-s2.0-85089670338
Source
Radiation Physics and Chemistry
ISSN of the container
0969806X
Sponsor(s)
The authors are very grateful to Ms. E. Somessari, Instituto de pesquisas Energéticas e Nucleares (IPEN/CNEN-SP) and Nancy K. Numisedo, laboratório de dosimetria do Instituto de Física (IF/USP), Brazil, for kindly carrying out the irradiation of the samples. This work was supported by CAPES - 001 and FAPESP - 2014/03085-0 .
Sources of information:
Directorio de Producción Científica
Scopus