Optimization of geometric parameters for Marinelli beaker to maximize the detection efficiency of an HPGe detector

2009 ◽  
Vol 610 (3) ◽  
pp. 718-723 ◽  
Author(s):  
Asm Sabbir Ahmed ◽  
Kevin Capello ◽  
Albert Chiang ◽  
Erick Cardenas-Mendez ◽  
Gary H. Kramer
Keyword(s):  
Hpge Detector ◽  
Detection Efficiency ◽  
Geometric Parameters ◽  
Marinelli Beaker

HPGe detector efficiency calibration for extended cylinder and marinelli-beaker sources using the ESOLAN program

1997 ◽  
Vol 48 (1) ◽  
pp. 83-95 ◽  
Author(s):  
Tien-Ko Wang ◽  
Wei-Yang Mar ◽  
Tzung-Hua Ying ◽  
Chia-Lian Tseng ◽  
Chi-Hung Liao ◽  
...  
Keyword(s):  
Hpge Detector ◽  
Efficiency Calibration ◽  
Detector Efficiency ◽  
Marinelli Beaker

Modeling an HPGe detector response to gamma-rays using MCNP5 code

2019 ◽  
Vol 30 (11) ◽  
pp. 1950099
Author(s):  
I. V. Prozorova ◽  
R. R. Sabitova ◽  
N. Ghal-Eh ◽  
S. V. Bedenko
Keyword(s):  
Computational Model ◽  
Response Function ◽  
Hpge Detector ◽  
Gamma Ray ◽  
Detection Efficiency ◽  
Dead Layer ◽  
Acquisition Time ◽  
Detector Response ◽  
Simulated Model ◽  
Mcnp5 Code

The response function is the important information for the precise interpretation of experimental data and also for characterizing the developing nuclear instruments. Measurement of the response function normally requires a number of mono-energetic gamma-ray sources, a long acquisition time and an appropriate experimental setup. The Monte Carlo method, as an alternative to response function measurement, has widely been used and recommended. In this study, a computational model of an HPGe detector has been developed by using the MCNP5 code. To validate the simulated model, the simulations from mono-energetic sources have been compared to the corresponding measured data. Any deviation from the measurement could be attributed to the unmodeled details of the detector crystal, so they needed adjustment. Moreover, an analysis has been undertaken on the dependency of detection efficiency on the dead layer thickness of the germanium crystal. Having developed a computational model of the crystal, a set of correction factors was extracted to take into account the gamma-ray self-absorption within the source volume. The simulated model of the HPGe detector in this study can be used to calculate the detection efficiency when the samples are not of the standard geometry which require self-absorption considerations.

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