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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Development of a mechanically resistant fluorite-based pellet to be used in personal dosimetry

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Author(s):
Umisedo, Nancy K. [1] ; Okuno, Emico [1] ; Cancio, Francisco [1] ; Yoshimura, Elisabeth M. [1] ; Kunzel, Roseli [2]
Total Authors: 5
Affiliation:
[1] Univ Sao Paulo, Inst Fis, Rua Matao 1371, BR-05508090 Sao Paulo, SP - Brazil
[2] Univ Fed Sao Paulo, Dept Fis, R Sao Nicolau 210, BR-09913030 Diadema, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: Radiation Measurements; v. 134, JUN 2020.
Web of Science Citations: 0
Abstract

The Laboratory of Dosimetry of the University of Sao Paulo performs the external individual monitoring of workers exposed to X and gamma rays applying thermoluminescence (TL) technique. Two types of detectors are used in this service: TLD-100 (LiF:Mg,Ti) and pellets made with natural green fluorite cold pressed with sodium chloride as agglutinant (CaF2:NaCl). Due to the mechanical fragility of the CaF2:NaCl pellet, a new detector has been developed using a commercial adhesive as a binding agent aiming to increase the mechanical resistance. TL properties of the new designed pellet were investigated aiming the use in personal dosimetry and the substitution of the currently in use detectors. Optically stimulated luminescence (OSL) measurements were also performed in order to find its potential use as an OSL dosimeter. (AU)

FAPESP's process: 18/05982-0 - R&D&I in radiation metrology in the health area
Grantee:Linda Viola Ehlin Caldas
Support Opportunities: Research Projects - Thematic Grants