Speaker
Dr
Tadeusz Z. Kowalski
(AGH, University of Science and Technology, Krakow, Al. Mickiewicza 30, Poland)
Description
In the past few years, miniaturized tissue- equivalent gas detectors operating at a nanometric level down to 35 nm, have been developed for application of microdosimetry in radiotherapy.
It should be stressed that single ionization events dominate the distribution of low-LET radiation in nanometric sites and therefore their detection is of primary importance. A higher gas gain is necessary for reducing the simulated site.
The gas gain factor has been measured for C3H8/CO2/N2/55/39.6/5.4, CH4/CO2/N2/64.4/32.5/3.1 and Ne/C2H4/C2H6/N2/41/39/16.7/3.3 TEG mixtures.
The scope of the measurements was to find the highest stable gas gain, its dependence of TEG mixture pressure and counter geometry. Obtained results will be presented.
Author
Dr
Tadeusz Z. Kowalski
(AGH, University of Science and Technology, Krakow, Al. Mickiewicza 30, Poland)
