A comprehensive study on the laser decontamination of surfaces contaminated with Cs(+) ion.
Appl Radiat Isot
; 67(7-8): 1526-9, 2009.
Article
em En
| MEDLINE
| ID: mdl-19369082
ABSTRACT
A Q-switched NdYAG laser with a 1064nm, 450mJ/pulse and 14ns pulse width was employed to study the decontamination characteristics of Type 304 stainless steel specimens contaminated with Cs(+) ions. The surrogate specimens were artificially contaminated with two kinds of premixed solutions. The laser was irradiated for 10, 20 and 100 shots. The results were investigated using a SEM, EPMA and XPS. For the surrogate specimen treated with the CsCl+KCl solution, more than 98% of the Cs(+) ions were removed during an irradiation of 100 shots. The specimen treated with the CsCl+KCl solution was easier to decontaminate. By comparing the ratio of the O(1s) intensity to the Fe(2p) intensity of the XPS spectra, it was found that the oxygen atoms that had evolved from the specimen treated with the CsNO(3)+KNO(3) solution had decreased the laser's decontamination performance.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Césio
/
Descontaminação
/
Lasers
Idioma:
En
Ano de publicação:
2009
Tipo de documento:
Article