Research of X-ray induced conductivity of ZnSe sensors for their application in isotopic thickness gauges

TL;DR

This study investigates the X-ray induced conductivity of undoped ZnSe sensors, highlighting their low intrinsic conductivity at high temperatures and their potential for use in radiation-based thickness gauges in metallurgy.

Contribution

It provides new data on the X-ray induced conductivity of ZnSe sensors and introduces a simple power function model for dose dependence, aiding sensor calibration.

Findings

ZnSe sensors have minor intrinsic conductivity up to 180°C.

X-ray induced conductivity in ZnSe is significant and measurable.

Dose dependence follows a simple power function, simplifying calibration.

Abstract

Measurements of intrinsic conductivity and X-ray induced conductivity were performed on specially undopped ZnSe samples. The measurements demonstrated that sensors made of ZnSe have minor intrinsic conductivity when heating up to the temperature of 180 {\deg}C, and significant X-ray induced conductivity. Dose dependence "dose rate - current" is described with simple power function which considerably simplifies calibration of sensors. This results can be used during the designing of high-temperature X-ray and gamma-radiation detectors for radiation hot rolling thickness gauges which are widely used in the metallurgy.