Assessment of the detection efficiency calibration of high-resolution gamma-ray spectrometers by EGSnrc and MCNP6.2 Monte Carlo codes

Sayın, Sefa; Seferinoğlu, Meryem; Yeltepe, Emin; Çetin, Berkay; Lüle, Senem Şentürk

doi:10.1016/j.radphyschem.2022.110601

Cited by 4 publications

(1 citation statement)

References 24 publications

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“…1). There are several articles where the presence of this copper contact pin, which reduces the efficiency of the detector, is mentioned, and since its size is not given by the manufacturer, it is included in the modeling with estimated values [12][13][14][15].…”

Section: Introductionmentioning

confidence: 99%

Evaluation of the Central Copper Contact Pin Effect in High-Energy Region in Gamma-ray Spectrometry

Uyar

2024

Cumhuriyet Science Journal

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The detector must be modeled in the most accurate way when Monte Carlo simulation method is used for efficiency calculation in gamma-ray spectrometric studies. This study aims to investigate the effect of the copper contact pin inside the detector on the efficiency of the HPGe detector for high gamma-ray energies. Simulated efficiencies were determined for 6 different energies in the energy range of 1460.8 keV up to 2614.5 keV in point and cylindrical source geometry. According to the modeling using PHITS Monte Carlo simulation code, the presence of copper contact pin at high gamma-ray energies caused a decrease of up to 6% in detector efficiency. It was emphasized that this ignored parameter should be included in the modeling like all other geometric parameters used in detector modeling, by showing the effect on the efficiency.

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Section: Introductionmentioning

confidence: 99%

Evaluation of the Central Copper Contact Pin Effect in High-Energy Region in Gamma-ray Spectrometry

Uyar

2024

Cumhuriyet Science Journal

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A Monte Carlo approach for predictive tools in gamma irradiator: a review

Saputro,

Nuraeni

2024

J Radioanal Nucl Chem

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Comparison of Monte Carlo tally techniques for dosimetry in a transmission-type x-ray tube

Feng,

Lin,

et al. 2024

Biomed. Phys. Eng. Express

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This study discussed comparing result accuracy and time cost under different tally methods using MCNP6 for a novel transmission X-ray tube which was designed for the Auger electron yield with specific material (eg. iodine). The assessment included photon spectrum, percent depth dose, mass-energy absorption coefficient corresponding to air and water, and figure of merit comparison. The mean energy of in-air phantom was from 41.8 keV (0 mm) to 40.9 keV (100 mm), and the mean energy of in-water phantom was from 41.41 keV (0 mm) to 45.2 keV (100 mm). The specific dose conversion factors based mass-energy absorption coefficient corresponding to different materials was established and the difference was less than 2% for the dose conversion of FMESH comparing to measurement data. FMESH had better figure of merit (FOM) than the F6 tally for the dose parameter assessment, which mean the dose calculation that focused on the superficial region could be assessed with more calculation efficiency by FMESH tally for this novel transmission X-ray tube. The results of this study could help develop treatment planning system (TPS) to quickly obtain the calculated data for phase space data establishment and heterogeneous correction under different physical condition settings.

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Assessment of the detection efficiency calibration of high-resolution gamma-ray spectrometers by EGSnrc and MCNP6.2 Monte Carlo codes

Cited by 4 publications

References 24 publications

Evaluation of the Central Copper Contact Pin Effect in High-Energy Region in Gamma-ray Spectrometry

Evaluation of the Central Copper Contact Pin Effect in High-Energy Region in Gamma-ray Spectrometry

A Monte Carlo approach for predictive tools in gamma irradiator: a review

Comparison of Monte Carlo tally techniques for dosimetry in a transmission-type x-ray tube

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