Finnish spectrolite as high-dose gamma detector

Autor(es)

Antonio, Patricia L. ^[1] ; Caldas, Linda V. E. ^[1]

Afiliação do(s) autor(es)

^[1] IPEN CNEN SP, Inst Pesquisas Energet & Nucl, Comissao Nacl Energia Nucl, BR-05508000 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: Radiation Physics and Chemistry; v. 116, p. 120-124, NOV 2015.
• Citações Web of Science: 3

Resumo

A natural material called spectrolite, from Finland, was studied in this work. The purpose was to test it in gamma radiation beams to verify its performance as a high-dose detector. From this material, pellets were manufactured with two different concentrations of Teflon and spectrolite, and their responses were verified using two luminescent techniques: thermoluminescence (TL) and optically stimulated luminescence (OSL). The TL and OSL signals were evaluated by means of characterization tests of the material response, after exposure to a nominal absorbed dose interval of 5 Gy to 10 kGy. The results obtained, for both concentrations, showed a good performance of this material in beams of high-dose gamma radiation. Both techniques were utilized in order to investigate the properties of the spectrolite+Teflon samples for different applications. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

• Processo FAPESP: 10/16437-0 - Caracterização e aplicações de materiais dosimétricos utilizando a luminescência opticamente estimulada e técnicas complementares
• Beneficiário: Linda Viola Ehlin Caldas
• Modalidade de apoio: Auxílio à Pesquisa - Temático