magistrsko delo
Miha Dagarin (Author), Rok Pestotnik (Mentor)

Abstract

Za detekcijo svetlobe v eksperimentih visokoenergijske fizike potrebujemo senzorje, ki so sposobni zaznavati posamezne fotone z velikim izkoristkom in časovno ločljivostjo. Ena od možnosti so silicijeve fotopomnoževalke, ki pa v okoljih z močno sevalno obremenitvijo zaradi poškodb v kristalni strukturi materiala čedalje slabše delujejo. V tej magistrski nalogi sem želel vzpostaviti merilni sistem za določanje časovne ločljivosti silicijevih fotopomnoževalk za potencialno primerjavo rezultatov med sevalnimi eksperimenti. Pri tem so pomembne elektronske komponente uporabljene pri oblikovanju signala fotonov. Primerjal sem različne ojačevalce signala in obliko njihovih izhodnih signalov. Sistem omogoča časovno ločljivost silicijevih fotopomnoževalk pri različnih napajalnih napetostih. Med delom sem optimiziral in ocenil prispevke k napaki meritev.

Keywords

silicijeve fotopomnoževalke;polprevodniški detektorji;posamezni fotoni;ojačevalci;časovna ločljivost;

Data

Language: Slovenian
Year of publishing:
Typology: 2.09 - Master's Thesis
Organization: UL FMF - Faculty of Mathematics and Physics
Publisher: [M. Dagarin]
UDC: 539.1.074
COBISS: 207873027 Link will open in a new window
Views: 30
Downloads: 16
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Other data

Secondary language: English
Secondary title: Optimization of the readout system for characterization of silicon photomultipliers
Secondary abstract: For detection of light in high-energy physics experiments, we need sensors capable of detecting individual photos with high efficiency and time resolution. One possibility are silicon photomultipliers, but in strongly irradiated environments their performance decreases due to damage in the crystal structure. In this master's thesis, I wanted to prepare a measurement system for determining the time resolution of silicon photomultipliers for potential future radiation experiments. It is important which electronic components are used to form the photon signal. I compared different signal amplifiers and their output signal shapes. The system is able to measure time resolution of silicon photomultipliers at different supply voltages. During the work, I optimized and evaluated the contributions to the measurement error.
Secondary keywords: silicon photomultipliers;semiconductor detectors;single photons;amplifiers;time resolution;
Type (COBISS): Master's thesis/paper
Study programme: 0
Thesis comment: Univ. v Ljubljani, Fak. za matematiko in fiziko, Oddelek za fiziko
Pages: 80 str.
ID: 25059917