An introduction to γ3 a new versatile ultralow background gamma spectrometer. Background description and analysis

Cagniant, A.; Douysset, Guilhem; Fontaine, J.-P.; Gross, P.; Petit, G. Le

doi:10.1016/j.apradiso.2015.01.027

Cited by 20 publications

(1 citation statement)

References 33 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…This spectrometer has an integrated background rate of 2.4 counts per min (cpm) in the gamma-ray energy range between 50 -2700 keV, corresponding to a background rate of 15 counts ks −1 •kg −1 Ge. This background compares well with the lowest-background gamma spectrometers in the world [20].…”

Section: Gamma Spectrometrysupporting

confidence: 67%

Destructive and Nondestructive Determination of 226Ra and 228Ra in Drinking Water by Gamma Spectrometry

Khan¹,

Bari²,

Torres³

et al. 2020

JEP

View full text Add to dashboard Cite

The Safe Drinking Water Act (SDWA) mandates that the drinking water should be monitored for 226 Ra and 228 Ra isotopes and establishes the Maximum Contaminant Level of 185 mBq/L (5 pCi•L −1) for the sum. In addition, SDWA regulates the Detection Limit (DL) of 37.0 mBq/L (1 pCi/L) for each isotope. The purpose of this work is to develop a working method for the determination of radium isotopes in drinking water satisfying the regulatory requirements of U.S. Environmental Protection Agency by utilizing our extensive experience in low-background gamma spectrometry at this laboratory. Two versions of the method were studied: destructive and non-destructive. Destructive method used the BaSO 4 coprecipitation as well as 133 Ba tracer for chemical recovery. We have used three gamma spectrometers: low-background 102% and 134% efficient with top muon guards, as well as an ultralow-background 140% efficient with full muon guard. We obtained a range of DLs from 5.3 to 22.6 mBq/L for 226 Ra and from 7.4 to 30.4 mBq/L for 228 Ra using the destructive method. For non-destructive method, the DL range was 26.0 to 26.9 mBq/L for 226 Ra and 27.6 to 28.6 mBq/L for 228 Ra using the 140% detector. To verify the methods, 7 to 10 laboratory control samples were spiked with both 226 Ra and 228 Ra at two different activities of 37.0 and 185 mBq/L. The results were evaluated by performing a combined location/variance chi-square test at a right-tail significance of 0.01 (99% Confidence Level), as stipulated by EPA. The verification results passed the chi-square tests at both activity levels. The destructive method can be accomplished using low-background gamma spectrometry, whereas non-destructive method requires ultralow-background gamma spectrometry.

show abstract

Section: Gamma Spectrometrysupporting

confidence: 67%

Destructive and Nondestructive Determination of 226Ra and 228Ra in Drinking Water by Gamma Spectrometry

Khan¹,

Bari²,

Torres³

et al. 2020

JEP

View full text Add to dashboard Cite

show abstract

Time sequence determination of parent–daughter radionuclides using gamma-spectrometry

Burnett

Britton

Abrecht

et al. 2017

J Radioanal Nucl Chem

View full text Add to dashboard Cite

Investigation of neutron shielding materials for low-background gamma spectrometry

Khan

Haines

et al. 2021

J Radioanal Nucl Chem

View full text Add to dashboard Cite

An introduction to γ3 a new versatile ultralow background gamma spectrometer. Background description and analysis

Cited by 20 publications

References 33 publications

Destructive and Nondestructive Determination of <sup>226</sup>Ra and <sup>228</sup>Ra in Drinking Water by Gamma Spectrometry

Destructive and Nondestructive Determination of <sup>226</sup>Ra and <sup>228</sup>Ra in Drinking Water by Gamma Spectrometry

Time sequence determination of parent–daughter radionuclides using gamma-spectrometry

Investigation of neutron shielding materials for low-background gamma spectrometry

Contact Info

Product

Resources

About

An introduction to γ3 a new versatile ultralow background gamma spectrometer. Background description and analysis

Cited by 20 publications

References 33 publications

Destructive and Nondestructive Determination of &lt;sup&gt;226&lt;/sup&gt;Ra and &lt;sup&gt;228&lt;/sup&gt;Ra in Drinking Water by Gamma Spectrometry

Destructive and Nondestructive Determination of &lt;sup&gt;226&lt;/sup&gt;Ra and &lt;sup&gt;228&lt;/sup&gt;Ra in Drinking Water by Gamma Spectrometry

Time sequence determination of parent–daughter radionuclides using gamma-spectrometry

Investigation of neutron shielding materials for low-background gamma spectrometry

Contact Info

Product

Resources

About

Destructive and Nondestructive Determination of <sup>226</sup>Ra and <sup>228</sup>Ra in Drinking Water by Gamma Spectrometry

Destructive and Nondestructive Determination of <sup>226</sup>Ra and <sup>228</sup>Ra in Drinking Water by Gamma Spectrometry