Efficiency determination of HPGe detector by simulation and experimental methods for solid volume source

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Safi Mohammad Reza; SHIRANI AHMAD; Rahmani Khalid

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Journal: Journal of Radiation Safety and Measurement Year:2019 | Volume:7 | Issue:3 Page(s): 19-28

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Title

Efficiency determination of HPGe detector by simulation and experimental methods for solid volume source

Author(s)

Safi Mohammad Reza | SHIRANI AHMAD | Rahmani Khalid | Issue Writer Certificate

Keywords

EfficiencyQ1

HPGe detectorQ1

solid volume sourceQ1

Monte Carlo methodQ3

MCNP codeQ2

Activity volume sourceQ1

Abstract

Analyzes of environmental samples regarding their radioactivity is of important concern for health purposes. We need standard sources to determine radioactive components and their activities. These sources are usually produced regarding type of the sample. One of the fundamental and precise tools to recognize radioactive materials and their activities is HPGe detector. To reach this goal, the detector needs to be scaled by standard sources with the same shape and the same components with environmental samples. It is also needed to determine the Efficiency of the detector in a wide range of energies. The most precise way to determine detector Efficiency is by doing experiment using standard sources. Since experimental methods are time consuming and difficult to apply in some cases, it is worth using simulating method which takes a short time and is precise. In the first part of this research the detector Efficiency is determined in two different ways: experimental and simulating for energies from 121 keV to 1408 keV for a volume source. In simulating method, the extracted results from the Monte Carlo code MCNPX was in agreement with experimental data. In the second part, the activity of Eu152 and Cs137 of volume source which is standardized by these components was calculated using efficiencies and simulating outputs and experimental data by Eu152 point source and it is shown that it is possible to use a point source to determine the activity of radionuclide with unrecognized activity in volume environmental samples.

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APA: Copy

Safi, Mohammad Reza, SHIRANI, AHMAD, & Rahmani, Khalid. (2019). Efficiency determination of HPGe detector by simulation and experimental methods for solid volume source. IRANIAN JOURNAL OF RADIATION SAFETY AND MEASUREMENT, 7(3 ), 19-28. SID. https://sid.ir/paper/379428/en

Vancouver: Copy

Safi Mohammad Reza, SHIRANI AHMAD, Rahmani Khalid. Efficiency determination of HPGe detector by simulation and experimental methods for solid volume source. IRANIAN JOURNAL OF RADIATION SAFETY AND MEASUREMENT[Internet]. 2019;7(3 ):19-28. Available from: https://sid.ir/paper/379428/en

IEEE: Copy

Mohammad Reza Safi, AHMAD SHIRANI, and Khalid Rahmani, “Efficiency determination of HPGe detector by simulation and experimental methods for solid volume source,” IRANIAN JOURNAL OF RADIATION SAFETY AND MEASUREMENT, vol. 7, no. 3 , pp. 19–28, 2019, [Online]. Available: https://sid.ir/paper/379428/en

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