Razvoj in validacija napovednih modelov za ocenjevanje zmogljivosti spektrometerskih sistemov za detekcijo radioaktivnosti iz zraka

Krneta, Jan (author), Mihovilovič, Miha (mentor)

V tem delu obravnavam zaznavnost sevalcev gama iz zraka. Začnem s teoretičnim uvodom v ionizirajoče sevanje in nadaljujem z razlago in pregledom detektorjev sevanja. Predstavim radiološki monitoring in enote, ki so v Republiki Sloveniji zadolžene zanj, in nadaljujem s študijo zmogljivosti novega radiološkega detektorja enote ELME. Analiziram obnašanje napovednega modela pri različnih parametrih merjenja in napovedi primerjam z lastnimi meritvami in s podatki iz tujine. Analiziram vpliv omejevanja opazovanih energijskih kanalov spektra in komentiram omejitve merjenja zaradi izbire zrakoplova.

• Language: Slovenian
• Keywords: Sevanje gama, hitrost doze sevanja, spektroskopija gama, velikost detektorja, za znavanje na razdalji, zaznavnost sevanja, faktor gama, merjenje sevanja iz zraka, omejevanje spektra
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FMF - Faculty of Mathematics and Physics
• Year: 2026
• PID: 20.500.12556/RUL-188894
• COBISS.SI-ID: 293690115
• Publication date in RUL: 30.09.2026

Secondary language

• Language: English
• Title: Development and validation of prediction models for estimating the capabilities of spectrometry systems for airbourne radiation detection.

Abstract

In this master's thesis I study the detectability of gamma emitting radionuclides using airborne systems. I start with a theoretical introduction into ionising radiation and continue with an overview of radiation detection systems. I introduce radiation monitoring and the units responsible for it in the Republic of Slovenia. I continue with a study of the capabilities of the new ELME radiation detector. I analyse the behaviour of my prediction model at various measuring parameters and compare the predictions against my experimental measurements and foreign data. I analyse the effect of limiting the observed radiation spectrum and comment on how the choice of aircraft effects detection limits.

• Keywords: Gamma radiation, radiation dose rate, gamma spectroscopy, detector size, detection at distance, radiation detectability, gamma factor, airborne radiation detection, gamma spectrum limiting