Determination of the absolute photon emission intensities of some gamma rays of 166mHo

Virginia Peyres; Eduardo García-Toraño

doi:10.1016/j.apradiso.2017.06.035

Determination of the absolute photon emission intensities of some gamma rays of ^166mHo

Appl Radiat Isot. 2018 Apr:134:142-146. doi: 10.1016/j.apradiso.2017.06.035. Epub 2017 Jun 24.

Authors

Virginia Peyres¹, Eduardo García-Toraño²

Affiliations

¹ CIEMAT, Metrología de Radiaciones Ionizantes, Avda. Complutense 40, 28040 Madrid, Spain. Electronic address: [email protected].
² CIEMAT, Metrología de Radiaciones Ionizantes, Avda. Complutense 40, 28040 Madrid, Spain.

PMID: 28679483
DOI: 10.1016/j.apradiso.2017.06.035

Abstract

This paper presents the results of the absolute measurement of some photon emission intensities in the decay of ^166mHo. Point sources from a reference solution standardized in the frame of the EURAMET.RI (II)-K2. Ho-166m activity comparison were measured by gamma spectrometry. The detection efficiency was obtained by Monte Carlo calculations including the complete decay scheme. Results obtained for 27 gamma and X-ray emissions are compared to reference values.

Keywords: (166m)Ho; Gamma-ray spectrometry; Photon emission intensities.