Evaluation of gamma- and electrons- irradiation effects in organic, inorganic and biological Substances: A phenomenological study

TL;DR

This paper investigates how gamma and electron radiation affect various substances by modeling microscopic energy deposition patterns and their macroscopic effects, emphasizing dose-response relationships and material recovery.

Contribution

It introduces a phenomenological mathematical model linking microscopic energy deposition to macroscopic material responses, including recovery and retardation effects.

Findings

The model describes log-dose response behavior in irradiated materials.

It quantifies the fraction of affected sites using parameter $eta _{ u }^{ullet }$.

The model accounts for recovery and delayed effects in radiation damage.

Abstract

The pattern of radiation energy deposition in substances at the microscopic level of lattice, molecule size, or the cell's nucleus is not uniform. The energy of radiation is transferred to the substance medium in the form of discrete, time-dependent, spatially correlated events with excitations/ionizations are the processes involved. The response of material on the macroscopic level to radiation effects depends on the microscopic pattern of energy deposition. A mathematical model that combines the specific number of sites available for the interaction of radiation and the detected signals of the property was proposed and discussed. This model emphasizes the phenomenon of log-dose response for a moderate amounts of nuclear radiation affects the material, especially detector materials. A parameter ($\alpha _{\nu }^{\bullet }$) was adopted to represent the remaining fraction of sites that were affected in the material by one unit dose at which the damage/change/modification of its properties occurs. The recovery factor of the effect and the delayed retardation enhancement factor are included in the model.