INVESTIGATION OF XENON-FILLED TUBE BREAKDOWN VOLTAGE AND DELAY RESPONSE AS POSSIBLE DOSIMETRIC PARAMETERS FOR SMALL GAMMA RAY AIR KERMA RATES

Milić Pejović; Emilija Živanović; Miloš Živanović

doi:10.1093/rpd/ncaa075

INVESTIGATION OF XENON-FILLED TUBE BREAKDOWN VOLTAGE AND DELAY RESPONSE AS POSSIBLE DOSIMETRIC PARAMETERS FOR SMALL GAMMA RAY AIR KERMA RATES

Radiat Prot Dosimetry. 2020 Aug 3;190(1):84-89. doi: 10.1093/rpd/ncaa075.

Authors

Milić Pejović¹, Emilija Živanović¹, Miloš Živanović²

Affiliations

¹ Faculty of Electronic Engineering, University of Niš, Aleksandra Medvedeva 14, 18000 Niš, Serbia.
² Vinča Institute of Nuclear Sciences, University of Belgrade, PO Box 522, 11001 Belgrade, Serbia.

PMID: 32744625
DOI: 10.1093/rpd/ncaa075

Abstract

This paper presents experimental results of dynamic breakdown voltage and delay response as functions of gamma ray air kerma rate for xenon-filled tube at 2.7 mbar pressure. Gamma ray air kerma rate range was considered from 123 nGy h-1 up to 12.3 mGy h-1 in order to investigate the possibility of the application of this tube in gamma radiation dosimetry. It was shown that the variations of the above-mentioned parameters are considerable up to the dose rate of 1.23 μGy h-1, which points to the possibility for application in small dose rate gamma ray dosimetry. Physical processes that make dominant impact to dynamic breakdown voltage and delay response during xenon-filled tube irradiation are also discussed in the paper.

MeSH terms

Gamma Rays
Radiation Dosage
Radiometry*
Xenon*

Substances

Xenon