Development of two dosimetry systems based on basic violet dye for possible use as radiation dosimeters

Abstract

Purpose

The purpose of this research paper is to study a comparison between two dosimetry systems, both of them based on basic violet dye (BV).

Design/methodology/approach

The first system depends on (BV) (incorporating polyvinyl alcohol) as a thin-film dosimeter. The second system also relies on (BV) as a solution dosimeter, which is more sensitive to gamma rays. The two prepared film/solutions have a considerable signal that decreases upon irradiation and the strength of the signal decreases with increasing radiation dose.

Findings

The gamma ray absorbed dose for these dosimeters was found to be up to 35 kGy for films and 1 kGy for the liquid phase. All dosimetric characteristics as radiation chemical yield, additive substance, dose-response function, radiation sensitivity, also before and after-irradiation stability under various conditions were considered.

Practical implications

It is expected the vital role of gamma radiation on this dye in its two forms or two media. This reveals their wide applications in the field of gamma irradiation processing.

Originality/value

These two dosimetry systems which depend upon the same dye are safe to handle, inexpensive, available raw materials and can be applied in various dosimetry applications as mentioned above.

Citation

Magdy, N. and Gafar, S. (2022), "Development of two dosimetry systems based on basic violet dye for possible use as radiation dosimeters", Pigment & Resin Technology, Vol. 51 No. 2, pp. 204-211. https://doi.org/10.1108/PRT-11-2020-0118