U.S. flag

An official website of the United States government

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

PUBLICATIONS

Standardization of 237Np

Published

Author(s)

Lizbeth Laureano-Perez, Ryan P. Fitzgerald, Ronald Colle

Abstract

The standardization of 237Np was investigated. The certified massic activity for 237Np was obtained by 4 liquid scintillation (LS) counting with correction for the 233Pa daughter using the CIEMAT/NIST efficiency tracing method using a 3H standard. Confirmatory measurements were also performed by high-resolution HPGe gamma-ray spectrometry, and by 4(LS) - (NaI) anticoincidence counting. All results agree within the respective method’s uncertainties It was confirmed that the 237Np/233Pa radioactive equilibrium is disturbed when making dilutions and/or removing aliquots
Citation
Applied Radiation and Isotopes
Volume
87
Pub Type
Journals

Download Paper

DOI Link

Keywords

anticoincidence counting, beta counting, CIEMAT/NIST method, efficiency tracing, liquid scintillation (LS), neptunium-237, radioactivity, SRM, standards
Physics and Radiation

Citation

Laureano-Perez, L. , Fitzgerald, R. and Colle, R. (2013), Standardization of 237Np, Applied Radiation and Isotopes, [online], https://doi.org/10.1016/j.apradiso.2013.11.074 (Accessed April 19, 2024)

Created December 4, 2013, Updated November 10, 2018