A method for correcting NaI spectra for attenuation losses in hand-held instrument applications

Author

Estep, Robert J. ; Rawool-Sullivan, Mohini ; Miko, David

Author_Institution

Los Alamos Nat. Lab., NM, USA

Volume

45

Issue

3

fYear

1998

fDate

6/1/1998 12:00:00 AM

Firstpage

1022

Lastpage

1028

Abstract

In this paper we present the gross-count material basis set (GC-MBS) method for estimating transmission losses in measurements of radionuclides using low-resolution gamma-ray detectors such as NaI or CdZnTe. The application to continuum-subtracted peaks measured with high-purity Ge detectors is also discussed. To illustrate the method, we apply it to the correction of spectra from enriched uranium that have been distorted by various intervening absorbers. We also examine the application to simultaneous determination of the uranium enrichment through an unknown absorber using an NaI detector

Keywords

radiation detection; semiconductor counters; solid scintillation detectors; CdZnTe; Ge; NaI; NaI detector; U; U enrichment; attenuation losses; continuum-subtracted peaks; enriched U; gross-count material basis set; hand-held instrument; high-purity Ge detectors; low-resolution gamma-ray detectors; transmission losses; Attenuation measurement; Distortion measurement; Energy measurement; Gamma ray detection; Gamma ray detectors; Gamma rays; Germanium; Instruments; Loss measurement; Propagation losses;

fLanguage

English

Journal_Title

Nuclear Science, IEEE Transactions on

Publisher

ieee

ISSN

0018-9499

Type

jour

DOI

10.1109/23.682700

Filename

682700