The rapid determination of radioactivity due to caesium-137 in mixed fission products by anion exchange and gamma-ray spectrometry

The Analyst ◽  
1956 ◽  
Vol 81 (967) ◽  
pp. 570 ◽  
Author(s):  
J. L. Woodhead ◽  
A. J. Fudge ◽  
E. N. Jenkins
Keyword(s):  
Anion Exchange ◽  
Gamma Ray ◽  
Rapid Determination ◽  
Fission Products ◽  
Gamma Ray Spectrometry

Threshold Radioactivity for Bulk Food Samples by Gamma Spectroscopy

1965 ◽  
Vol 48 (1) ◽  
pp. 1-5
Author(s):  
Harry M Yakabe ◽  
Hiram Neilson
Keyword(s):  
Gamma Ray ◽  
Gamma Spectroscopy ◽  
Rapid Determination ◽  
Detection System ◽  
Fission Products ◽  
Food Samples ◽  
Family Of Curves ◽  
Lower Limits ◽  
True Activity

Abstract In the surveillance of bulk food produce by gamma ray spectroscopy for fission products, the activities of the commonly observed radionuclides are frequently in the magnitude of background inherent to the detection system. The problems of determining whether the sample is in fact contaminated, the lower limits of detecting the radionuclides, and the effect of compton smear on the lower limits are discussed. The discussions are based on the modified spectrum stripping method for quantitative analysis of gamma ray spectrum for the following radioisotopes: Cs-137, Zr-95/Nb-95, and K-40. A family of curves are shown for rapid determination of the minimum detectable true activity (AII) of Cs-137.

scholarly journals Np-237 incineration study in various beams in ADS setup QUINTA

Nukleonika ◽  
2018 ◽  
Vol 63 (1) ◽  
pp. 17-22 ◽  
Author(s):  
Stanisław Kilim ◽  
Elżbieta Strugalska-Gola ◽  
Marcin Szuta ◽  
Marcin Bielewicz ◽  
Sergej I. Tyutyunnikov ◽  
...  
Keyword(s):  
Fission Product ◽  
Proton Beam ◽  
Neutron Capture ◽  
Gamma Ray ◽  
Fission Products ◽  
Neutron Field ◽  
Gamma Ray Spectrometry ◽  
Driven System ◽  
Accelerator Driven System

Abstract Neptunium-237 samples were irradiated in a spallation neutron field produced in accelerator-driven system (ADS) setup QUINTA. Five experiments were carried out on the accelerators at the JINR in Dubna - one in carbon (C6+), three in deuteron, and one in a proton beam. The energy in carbon was 24 GeV, in deuteron 2, 4 and 8 GeV, respectively, and 660 MeV in the proton beam. The incineration study method was based on gamma-ray spectrometry. During the analysis of the spectra several fission products and one actinide were identified. Fission product activities yielded the number of fissions. The actinide (Np-238), a result of neutron capture by Np-237, yielded the number of captures. The main goal of this work was to find out if and how the incineration rate depended on parameters of the accelerator beam.

Determination of the radon emanation fraction from rocks by simple gamma-ray spectrometry

2018 ◽  
Vol 316 (3) ◽  
pp. 1307-1312 ◽  
Author(s):  
Kil Yong Lee ◽  
Sang Ho Moon ◽  
Yong Hwa Oh ◽  
Kyucheol Ha ◽  
Kyung Seok Ko
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Spectrometry ◽  
Radon Emanation ◽  
Emanation Fraction

Determination of the measurement threshold in gamma-ray spectrometry

2017 ◽  
Vol 121 ◽  
pp. 126-130 ◽  
Author(s):  
M. Korun ◽  
B. Vodenik ◽  
B. Zorko
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Spectrometry
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