Primerjava sistemov za detekcijo sekundarnih žarkov gama pri protonski terapiji

Kuhar, Kristijan (author), Studen, Andrej (mentor)

V magistrskem delu sem obravnaval sisteme za detekcijo sekundarnih žarkov gama pri protonski terapiji. Obravnaval sem dva tipa detektorjev, kamero gama in Comptonsko kamero. Z Monte Carlo simulacijami sem simuliral tok protonov skozi fantom iz vode. Vzdolž poti so se vzbujala atomska jedra, ki so nato sevala sekundarne žarke gama, na katerih sem preizkušal različne implementacije kamere gama in Comptonske kamere. Uvedel sem enoten kriterij za primerjavo merilnih sistemov. Prišel sem do zaključka, da so slike troplasne Comptonske kamere in kamere gama primerljive kvalitete. Z obema kamerama dosežemo ločljivost slike 2 mm.

• Language: Slovenian
• Keywords: protonska terapija, simulacije Monte Carlo, Comptonska kamera, kamera gama
• Work type: Master's thesis/paper
• Typology: 2.09 - Master's Thesis
• Organization: FMF - Faculty of Mathematics and Physics
• Year: 2018
• PID: 20.500.12556/RUL-105152
• COBISS.SI-ID: 3262052
• Publication date in RUL: 31.10.2018

Secondary language

• Language: English
• Title: Comparison of secondary gamma rays detection systems for proton therapy

Abstract

In my master thesis, I studied systems for the detection of secondary gamma rays in proton therapy. I analyzed two types of detectors, a gamma camera and a Compton camera. I simulated the flow of the protons through a phantom made of water. Secondary gamma rays have been emitted. Those gamma rays have been used for testing and verification of various implementations of gamma ray detector. I compared and evaluated detection systems using common criteria. I came to the conclusion that three layer Compton camera has similar quality of the image as gamma camera. In both cases a resolution 2 mm can be achieved.

• Keywords: Proton therapy, Monte Carlo simulations, Compton camera, gamma camera