The Impact of the Normality of Two Types of Chemical Solutions on the Etching Rates of Nuclear Track detector CR-39

Alassi, Aqmur Sadoon; Alobaidy, Ahmed Abed

doi:10.32894/kujss.2023.137408.1091

Authors

Department of Physics, College of Sciences, Kirkuk University, Kirkuk, Iraq

Document Type : Research Paper

10.32894/kujss.2023.137408.1091

Abstract

Solid-state nuclear track detectors such as CR-39 are used in the detection of charged particles and heavy ions. In this paper, the effect of two types of chemical etching solutions on the etching properties of the detector CR-39 of 400 µm thickness was studied. The etching properties involved the calculation of the etching parameters which are the bulk and track etch rates () respectively as well as the etch rate ratio (V), and then comparing them for the two types of etching solution. We used two sets of detectors each piece of dimensions . The detectors were irradiated with alpha particles of energy (2, 3, 4, 5) MeV using a ²⁴¹Am source to obtain tracks of alpha particles in the detector. To reveal the latent tracks, the irradiated detectors were treated with aqueous KOH and NaOH solutions. Both groups of irradiated detectors were etched under the same conditions of different molarities ranged from (3-11) N at temperature (70±1) °C for both solutions for time periods ranging from (3) h. The V_B was measured by the method of removal thickness difference from the detector surface by etching for the specified periods. By measuring the diameters of the tracks and the diameter growth rates (V_D) for the specified intervals, the V_T and V_B were measured in correlation with the V_B for the both types of the solution used. By comparing the results, it was appeared that the etching rates with NaOH solution is greater than that etched with KOH for VB and VT.

Keywords

Main Subjects

Radiation Physics

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The Impact of the Normality of Two Types of Chemical Solutions on the Etching Rates of Nuclear Track detector CR-39

References

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Articles in Press, Accepted Manuscript Available Online from 30 June 2023

Articles in Press, Accepted Manuscript
Available Online from 30 June 2023