Calibration and use of well-type germanium detectors for low-level gamma-ray spectrometry of sediments using a semi-empirical method

2020 ◽  
Vol 225 ◽  
pp. 106385 ◽  
Author(s):  
Misael Díaz-Asencio ◽  
Joan-Albert Sanchez-Cabeza ◽  
Ana Carolina Ruiz-Fernández ◽  
José A. Corcho-Alvarado ◽  
Libia Hascibe Pérez-Bernal
Keyword(s):  
Gamma Ray ◽  
Empirical Method ◽  
Gamma Ray Spectrometry ◽  
Germanium Detectors ◽  
Low Level ◽  
Semi Empirical

IN-SITU GAMMA-RAY SPECTROMETRY FOR RADIOACTIVITY ANALYSIS OF SOIL USING NaI(Tl) AND LaBr3(Ce) DETECTORS

2019 ◽  
Vol 187 (3) ◽  
pp. 300-309 ◽  
Author(s):  
Jun-Ho Lee ◽  
Jong-In Byun
Keyword(s):  
Gamma Ray ◽  
Emergency Situation ◽  
Empirical Method ◽  
Gamma Ray Spectrometry ◽  
Conversion Factors ◽  
Radioactivity Analysis ◽  
Energy Peak ◽  
Radiation Emergency ◽  
Semi Empirical

Abstract In this study, the full energy peak count rates to radioactivity conversion factors of 3″Ø × 3″ NaI(Tl) and 2″Ø × 2″ LaBr3(Ce) detectors for radioactivity analysis in the soil were determined on site using a semi-empirical method with point-like gamma-ray sources. To validate the conversion factors derived for the detectors, in-situ gamma-ray measurements were performed in wide open fields with almost flat surface and compared with the sampling analysis for the radioactivity of U-series, Th-series, and 40K in the soil. As a result, radioactivity concentrations of 40K, 208Tl and 214Bi by in-situ and laboratory measurements agreed well with each other within 5%, and the MDAs for artificial radionuclides were estimated under the condition of fresh deposition considering a radiation emergency situation.

Improvements of a low-level gamma-ray spectrometry system at the underground laboratory “UDO”

2009 ◽  
Vol 67 (5) ◽  
pp. 726-730 ◽  
Author(s):  
S. Neumaier ◽  
M. Wojcik ◽  
H. Dombrowski ◽  
D. Arnold
Keyword(s):  
Gamma Ray ◽  
Underground Laboratory ◽  
Gamma Ray Spectrometry ◽  
Low Level

Optimized background reduction in low-level gamma-ray spectrometry at a surface laboratory

2006 ◽  
Vol 64 (9) ◽  
pp. 1006-1012 ◽  
Author(s):  
S. Hurtado ◽  
M. García-León ◽  
R. García-Tenorio
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Spectrometry ◽  
Background Reduction ◽  
Low Level

Low-level single and coincidence gamma-ray spectrometry

2008 ◽  
Vol 276 (3) ◽  
pp. 779-787 ◽  
Author(s):  
I. Sýkora ◽  
M. Ješkovský ◽  
R. Janik ◽  
K. Holý ◽  
M. Chudý ◽  
...  
Keyword(s):  
Gamma Ray ◽  
Gamma Ray Spectrometry ◽  
Low Level
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