Mapping of Natural Radionuclides using Noise Adjusted Singular Value Decomposition, NASVD

Helle Karina Aage

Research output: Contribution to journalJournal articleResearchpeer-review

Abstract

Mapping of natural radionuclides from airborne gamma spectrometry suffer from random ”noise” in the spectra due to short measurement times. This is partly compensated for by using large volume detectors to improve the counting statistics. One method of further improving the quality of the measured spectra is to remove from the spectra a large fraction of this random noise using a special variant of Singular Value Decomposition: Noise Adjusted Singular Value Decomposition. In 1997-1999 the natural radionuclides on the Danish Island of Bornholm were mapped using a combination of the standard 3-Windows-Method and NASVD. The method was found to improve the data quality significantly and was a valuable tool to locate abnormalities.
Original languageEnglish
JournalAbhath al-Yarmuk
Volume15
Issue number1
Pages (from-to)21-32
ISSN1023-0157
Publication statusPublished - 2006

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