Nota de FísicaPublicado
Alpha Activity of Isotope Measured with CR-39 Track Detector
O. A. P. Tavares; M. L. Terranova
1996
Dados da publicação
- Autores
- O. A. P. Tavares; M. L. Terranova
- Tipo
- Nota de Física
- Status
- Publicado
- Data de publicação
- 1996
- Descrição
- A new method to measure alpha activity of long-lived radioisotopes is reported. The method consists basically in using CR-39 track detectors in close contact with thick samples of the radioelement to be investigated. Accordingly, a long-term exposure experiment (up to two years) has been performed in the Gran-Sasso Underground Laboratory (INFN-LNGS, Italy), in which metallic sheets of natural platinum have been used to measure alpha activity of <math>^{190}Pt\,\!</math> isotope. The half-life of <math>^{190}Pt\,\!</math> has been obtained as <math>(3.2\pm 0.1)\times 10^{11}\,\!</math> yr, in good agreement with two recent theoretical half-life predictions.
- Ano
- 1996
- Número
- CBPF-NF-076/96
- Vínculo com tese
- Não
- Vínculo com bolsa
- Não