Mechanisms of TL for production of the 230 degrees C peak in natural sodalite

Autor(es)

Cano, Nilo F. ^{[1, 2]} ; Blak, Ana R. ^[1] ; Ayala-Arenas, Jorge S. ^[2] ; Watanabe, Shigueo ^[1]

Afiliação do(s) autor(es)

^[1] Univ Sao Paulo, Inst Phys, BR-05508090 Sao Paulo - Brazil

^[2] Univ San Agustin Arequipa, Profess Sch Phys, Arequipa - Peru

• Tipo de documento: Artigo Científico
• Fonte: Journal of Luminescence; v. 131, n. 2, p. 165-168, FEB 2011.
• Citações Web of Science: 3

Resumo

The thermoluminescence (TL) peak in natural sodalite near 230 degrees C which appears only after submitted to thermal treatments and to gamma irradiation has been studied in parallel with electron paramagnetic resonance (EPR) spectrum appearing under the same procedure This study revealed a full correlation between the 230 degrees C TL peak and the eleven hyperfine lines from EPR spectrum In both case the centers disappear at the same temperature and are restored after gamma irradiation A complete model for the 230 C TL peak is presented and discussed In addition to the correlation and TL model specific characteristics of the TL peaks are described (C) 2010 Elsevier B V All rights reserved (AU)

• Processo FAPESP: 07/08008-0 - Defeitos intrínsecos em cristais de silicatos: cálculos numéricos no caso do diopsídio
• Beneficiário: Nilo Francisco Cano Mamani
• Modalidade de apoio: Bolsas no Brasil - Pós-Doutorado