Characterizing the coaxial HPGe detector using Monte Carlo simulations and evolutionary algorithms

2021 ◽  
Vol 174 ◽  
pp. 109748
Author(s):  
Irina V. Prozorova ◽  
Nima Ghal-Eh ◽  
Sergey V. Bedenko ◽  
Yury A. Popov ◽  
Andrey A. Prozorov ◽  
...  
2019 ◽  
Vol 53 (3) ◽  
pp. 16-22
Author(s):  
Jinzhao Zhang ◽  
Hongzhi Li ◽  
Xianguo Tuo

AbstractIn-situ measurement of marine sediment radioactivity does not destroy the stratification of radionuclides in the sediment. We develop a novel seabed sediment radioactive measurement technique using a High Purity Germanium (HPGe) detector. The overall measurement system is designed, and the detector energy calibration is performed. The efficiency is calculated based on Monte Carlo simulations using the MCNP5 code. We compared the efficiency and energy resolution with the NaI(Tl) detection through experiments. NaI(Tl) detection is incapable of identifying the 137Cs artificial nuclides in seabed sediments due to the energy resolution limit. Hence, underwater HPGe detection is utilized due to its high energy resolution, which enables the detection of artificial nuclides 137Cs. The proposed method is of great significance in evaluating marine radioactive pollution.


2016 ◽  
Vol 113 ◽  
pp. 47-52 ◽  
Author(s):  
A. Saraiva ◽  
C. Oliveira ◽  
M. Reis ◽  
L. Portugal ◽  
I. Paiva ◽  
...  

2016 ◽  
Vol 4 ◽  
pp. 27
Author(s):  
Kamila Johnová

The main aim of this article is to demonstrate how Monte Carlo simulations are implemented in our gamma spectrometry laboratory at the Department of Dosimetry and Application of Ionizing Radiation in order to calculate the self-absorption within the samples. A model of real HPGe detector created for MCNP simulations is presented in this paper. All of the possible parameters, which may influence the self-absorption, are at first discussed theoretically and lately described using the calculated results.


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