THE EFFECT OF SALT CONCENTRATION ON ABSORBANCE AND CONDUCTANCE OF FRICKE DOSIMETER

ABSTRACT

THE EFFECT OF SALT CONCENTRATION ON ABSORBANCE AND CONDUCTANCE OF FRICKE DOSIMETER

Journal: Acta Chemica Malaysia (ACMY)
Author: Shamoon Al Islam, Zunaira Javaid, Abdul Ghaffar, Yasir Jamil, Nasim Akhter Warraich
Print ISSN : 2576-6732
Online ISSN : 2576-6724

This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited

DOI: 10.26480/acmy.02.2018.15.22

An instrument used to detect, and measure radiation dose is called radiation dosimeter. However, it should be reasonably sensitive to irradiation exposure, chemical transformation yield (expressed as G-value) must be sufficiently high, adequate reproducibility, and having stability of chemical solution before and after irradiation is called ideal dosimeter. A dosimeter meeting all these basic requirements is referred as “Fricke dosimeter” proposed a chemical dosimeter based on oxidation of ferrous ions in acidic aerated medium. It had maximum stability and reproducibility and most widely accepted as a standard in measurement of radiation dose. The range of Fricke dosimeter at 304 nm is 4 to 40 K rad. In this research work, absorbance efficiency and change in conductance of Fricke dosimeter has been estimated when we change the concentration of salt. Cesium CS-137 source has been used as gamma radiation source. The change in absorbance and electrical Conductivity verses time was measured individually.