Busca avançada
Ano de início
Entree
(Referência obtida automaticamente do Web of Science, por meio da informação sobre o financiamento pela FAPESP e o número do processo correspondente, incluída na publicação pelos autores.)

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

Texto completo
Autor(es):
Umisedo, Nancy K. [1] ; Okuno, Emico [1] ; Cancio, Francisco [1] ; Yoshimura, Elisabeth M. [1] ; Kunzel, Roseli [2]
Número total de Autores: 5
Afiliação do(s) autor(es):
[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
Número total de Afiliações: 2
Tipo de documento: Artigo Científico
Fonte: Radiation Measurements; v. 134, JUN 2020.
Citações Web of Science: 0
Resumo

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)

Processo FAPESP: 18/05982-0 - P&D&I em metrologia das radiações na área da saúde
Beneficiário:Linda Viola Ehlin Caldas
Linha de fomento: Auxílio à Pesquisa - Temático