Title
Recalibration of U-doped standard glasses through uranium thin film for neutron-fluence measurements
Date Issued
01 October 2014
Access level
metadata only access
Resource Type
journal article
Author(s)
Soares C.J.
Guedes S.
Curvo E.A.C.
Hadler J.C.
Jonckheere R.
Lixandrão-Filho A.L.
Siqueira P.T.D.
Madi Filho T.
UNESP
Publisher(s)
Kluwer Academic Publishers
Abstract
This work presents a recalibration of U-doped standard glasses using natural uranium thin films to be used as most dedicated neutron monitor for fission-track dating. The recalibrated U-doped glasses were used to determine fission-track ages in apatite samples from Brazilian alkaline formations (Alto ParanaÃba) and standard Durango apatite. Samples were irradiated in two nuclear reactors with different characteristics and the results were compared. For well-thermalized neutron facility, metal activation monitor was also used. The ages of Alto ParanaÃba arch and Durango apatite agree with those determined by other radiometric dating methods and metal activation monitors. These results suggest that the presented recalibration is suitable to be used routinely for fission-track dating studies even in a non-well thermalized neutron facility.
Start page
17
End page
26
Volume
302
Issue
1
Language
English
OCDE Knowledge area
FÃsica nuclear
IngenierÃa relacionada con la energÃa nuclear
Subjects
Scopus EID
2-s2.0-84931046459
Source
Journal of Radioanalytical and Nuclear Chemistry
ISSN of the container
02365731
Sponsor(s)
Acknowledgments This work was part of Soares’s PhD research and was financially supported by Conselho Nacional de Desenvolvi-mento CientÃfico e Tecnológico (CNPq). We thank Christina Traut-mann for her constructive comments and the heavy ions irradiation. Finally we dedicate this paper to Pedro José Iunes (in memorian) for his contributions within neutron dosimeter based on U-thin films.
Sources of information:
Directorio de Producción CientÃfica
Scopus