The influence of 134 Cs on the 137 Cs gamma-spectrometric peak-to-valley ratio and improvement of the peak-to-valley method by limiting the detector field of view

The peak-to-valley method was investigated under laboratory conditions and in situ with respect to both Cs perturbation of the Cs valley and use of collimation. The Cs perturbation is significant down to Cs: Cs activity ratios of 1:100. In these cases the full energy peaks from Cs (796 and 802keV) a...

Full description

Saved in:
Bibliographic Details
Published in:Applied radiation and isotopes 2017-10, Vol.128, p.249-255
Main Authors: Östlund, Karl, Samuelsson, Christer, Mattsson, Sören, Rääf, Christopher L
Format: Article
Language:English
Citations: Items that this one cites
Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The peak-to-valley method was investigated under laboratory conditions and in situ with respect to both Cs perturbation of the Cs valley and use of collimation. The Cs perturbation is significant down to Cs: Cs activity ratios of 1:100. In these cases the full energy peaks from Cs (796 and 802keV) and associated valley should be used instead of the peak and valley from the Cs 662keV peak. Use of collimators in situ outside Fukushima Daiichi significantly increased PTV for Cs.
ISSN:0969-8043
1872-9800
DOI:10.1016/j.apradiso.2017.07.004