Efficiency calibration of $$\upgamma $$ γ -ray detector for extended sources

Chakraborty, Animesh Kumer; Uddin, M.S.; Shariff, Asad; Latif, Shaikh Abdul; Rashid, Abdur; Khandaker, Mayeen Uddin

doi:10.1007/s12043-019-1735-1

Cited by 9 publications

(1 citation statement)

References 16 publications

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“…The choice of the initial distance between the source and the detector, 50 mm, was due to the need to exclude the effect of summing corrections of registered photons from γ-radiation sources with a complex decay scheme (for example, 60 Co, 152 Eu) on the final measurement results [17,18]. At distances of more than 100 mm, the statistical error of measurements increased due to insufficient activity of the calibration γ-ray sources.…”

Section: Fig 1 Calibration Scheme Of Hpge-detector By Absolute Effici...mentioning

confidence: 99%

EMPIRICAL FORMULA FOR THE DEPENDENCE OF HPGe-DETECTOR EFFICIENCY ON ENERGY AND DISTANCE FOR SHIELDED GAMMA-RAY SOURCES

Pylypchynets¹,

Lengyel²,

Парлаг³

et al. 2023

Problems of Atomic Science and Technology

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The accuracy of gamma-spectrometric measurements in the isotopic analysis of shielded nuclear materials depends on the accuracy of the detector calibration in terms of energy efficiency, which should take into account corrections related to the measurement geometry and the absorption of γ-radiation by the shield material. The results of experimental studies of the energy efficiency of the HPGe-detector measured at fixed distances between the calibration source and the detector (50 and 100 mm) in the presence and absence of an absorbing shield made of stainless steel 12X18H10T (thickness ‒ 9.6 mm) are presented. On the basis of experimental data, an empirical description of the efficiency dependence for fixed distances between the gamma radiation source and the detector in the presence of a stainless steel absorbing shield was obtained.

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Section: Fig 1 Calibration Scheme Of Hpge-detector By Absolute Effici...mentioning

confidence: 99%