An investigation of the changes in mass attenuation and energy absorption coefficients at K, L and M photoelectric absorption thresholds
Appl Radiat Isot. 2022 Jan 14;182:110106. doi: 10.1016/j.apradiso.2022.110106. Online ahead of print.ABSTRACTAn analysis of photoelectric attenuation and absorption data at the threshold energies for the K, L and M shell absorption discontinuities.PMID:35192988 | DOI:10.1016/j.apradiso.2022.110106 (Source: Applied Radiation and Isotopes)
Source: Applied Radiation and Isotopes - February 22, 2022 Category: Radiology Authors: John F Sutcliffe Source Type: research

Studies on radiation stability of natural caffeine
Appl Radiat Isot. 2022 Feb 15;183:110148. doi: 10.1016/j.apradiso.2022.110148. Online ahead of print.ABSTRACTBehavior of isolated caffeine in 60Co- γ radiation environment was studied in solid form as well as in aqueous medium. No degradation in solid caffeine structure was observed after exposing up to a dose of 10 kGy. In aqueous medium, 98% radiolytic degradation of caffeine was observed after application of 1.26 kGy γ dose. Radiation chemical yield decreased with increasing dose. The degradation was mostly favored in neutral medium. Addition of ethanol decreased the radiolytic degradation efficiency.PMID:35193082 | D...
Source: Applied Radiation and Isotopes - February 22, 2022 Category: Radiology Authors: Sayantani Mitra Nabanita Naskar Kalpita Ghosh Aparna Dutta Susanta Lahiri Punarbasu Chaudhuri Abhijit Saha Source Type: research

An investigation of the changes in mass attenuation and energy absorption coefficients at K, L and M photoelectric absorption thresholds
Appl Radiat Isot. 2022 Jan 14;182:110106. doi: 10.1016/j.apradiso.2022.110106. Online ahead of print.ABSTRACTAn analysis of photoelectric attenuation and absorption data at the threshold energies for the K, L and M shell absorption discontinuities.PMID:35192988 | DOI:10.1016/j.apradiso.2022.110106 (Source: Applied Radiation and Isotopes)
Source: Applied Radiation and Isotopes - February 22, 2022 Category: Radiology Authors: John F Sutcliffe Source Type: research

Studies on radiation stability of natural caffeine
Appl Radiat Isot. 2022 Feb 15;183:110148. doi: 10.1016/j.apradiso.2022.110148. Online ahead of print.ABSTRACTBehavior of isolated caffeine in 60Co- γ radiation environment was studied in solid form as well as in aqueous medium. No degradation in solid caffeine structure was observed after exposing up to a dose of 10 kGy. In aqueous medium, 98% radiolytic degradation of caffeine was observed after application of 1.26 kGy γ dose. Radiation chemical yield decreased with increasing dose. The degradation was mostly favored in neutral medium. Addition of ethanol decreased the radiolytic degradation efficiency.PMID:35193082 | D...
Source: Applied Radiation and Isotopes - February 22, 2022 Category: Radiology Authors: Sayantani Mitra Nabanita Naskar Kalpita Ghosh Aparna Dutta Susanta Lahiri Punarbasu Chaudhuri Abhijit Saha Source Type: research

Methods for estimating X-ray machine output through measurement and simulation
This study presents unique methods to solve for important properties in X-ray inspection devices such as source to object distance and energy spectrum. This information can then be applied to Monte Carlo models to achieve better overall dose estimates to electronics, which will lead to superior manufactured products. Since X-ray devices can vary greatly in source characteristics, this work investigates spectral measurement and Monte Carlo representation of three X-ray devices. For a Philips SRO 33 100 medical diagnostic device, the spectral output followed expected trends given by the prediction software SpekCalc and Spekt...
Source: Applied Radiation and Isotopes - February 21, 2022 Category: Radiology Authors: Michael P Pfeifer Nathanael Simerl Ryan Strahler Jack T Casburn John Porter Walter J McNeil Amir A Bahadori Source Type: research