Related Experiment Video
Updated: Jun 3, 2026

Expedited Radiation Biodosimetry by Automated Dicentric Chromosome Identification (ADCI) and Dose Estimation
Published on: September 4, 2017
Probability correction for the analytical simulation approach to calibrating γ-ray cylindrical detectors for
1Physics Department, Faculty of Science, Alexandria University, Alexandria, Egypt. nafee_shra@yahoo.com
Abstract:
Marinelli beakers increase geometric efficiency of detection in the γ-spectrometry of low-activity environmental samples by positioning the sample in close proximity to the detector. A probability correction has been introduced to the analytical simulation approach proposed previously (Nafee et al., 2009) for calculating detection efficiencies of γ-ray cylindrical detectors using extended low- and high-volume Marinelli beakers. Improved expressions for the self-attenuation and the coincidence summing effects at short source-detector distances have also been included in the analytical algorithm. A remarkable agreement between the measured and calculated efficiencies was observed as a result. Deviations of results calculated in this way from experimental values are twice as small as were observed with the previously reported analytical methods (Abbas, 2001; Nafee et al., 2009).
More Related Videos
06:20Irradiator Commissioning and Dosimetry for Assessment of LQ α and β Parameters, Radiation Dosing Schema, and in vivo Dose Deposition
Published on: March 11, 2021
06:28Visualization of Low-Level Gamma Radiation Sources Using a Low-Cost, High-Sensitivity, Omnidirectional Compton Camera
Published on: January 30, 2020
Related Concept Videos
Contaminants and Errors
Another key consideration is determining the appropriate number of samples required to...
Instrument Calibration
Analytical Balance Calibration
An analytical balance measures mass and requires regular calibration to...
Distance Corrections
Random Error
Biological Effects of Radiation