巧合
探测器
物理
放射源
光学
能量(信号处理)
计算物理学
核物理学
量子力学
医学
替代医学
病理
作者
Ashish Gupta,M. Shareef,Munmun Twisha,Saikat Bhattacharjee,G. Mukherjee,Satya Samiran Nayak,Sansaptak Basu,S. Dasgupta,J. Datta,S. Bhattacharyya,A. Mukherjee
标识
DOI:10.1016/j.apradiso.2023.110966
摘要
The true coincidence summing correction factor for a Broad Energy Germanium detector has been calculated at far and close geometry set-up using radioactive γ-ray sources. The correction factors were calculated using both experimental and analytical methods. Geant4 simulation was done to calculate the full-energy peak and total efficiencies of the detector. Standard, as well as fabricated mono-energetic γ-ray sources, were used for the γ-ray efficiency measurements. The simulated efficiencies of mono-energetic γ-ray sources were matched to the experimental γ-ray efficiencies by optimizing the detector parameters. The same parameters were used to obtain the full-energy peak and total efficiencies for γ-rays of current interest. Analytical and experimental correction factors were found to agree well with each other. The coincidence summing effect is found to be significant for source-to-detector distances less than 5 cm.
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