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Karakterizacija fotopomnoževalke v nasičenem režimu s simulatorjem scintilacijskih bliskov
LOKNAR, MARTINA (Author), Jankovec, Marko (Mentor) More about this mentor... This link opens in a new window, Vencelj, Matjaž (Co-mentor)

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Abstract
V magistrskem delu so uvodoma predstavljeni scintilacijski detektorji, njihova zgradba in pomen ter lastnosti in pregled scintilacijskih materialov s tabeliranimi podatki o svetlosti in trajanju izhodnih bliskov ter najpogostejših aplikacijah. Naštevanju možnosti optičnih sklopitev scintilatorja s fotodetektorjem sledi zgodovinski pregled najbolj znanih fotoelektričnih pretvornikov z razlago njihovega delovanja, pri čemer se opis osredotoča na strukturo in delovanje fotopomnoževalke. Jedro besedila se začne z motivacijo izdelave simulatorja scintilacijskih bliskov. Poleg zahtevanih specifikacij naprave so navedeni postopek snovanja elektronskega vezja, kriteriji izbora ustreznih elektronskih komponent, meritve za določitev lastnosti instrumenta in navodila za uporabo. Kosovnica, načrt tiskanega vezja in preostala tehnična dokumentacija se nahajajo v dodatku. V nadaljevanju je opisan postopek meritev odziva fotopomnoževalke v nasičenem režimu pri sklopitvi z izdelanim instrumentom. Rezultati meritev so analizirani s standardno metodo digitalne obdelave detektorskih signalov, diskusija rezultatov pa zajema računsko kompenzacijo odziva na naključen niz eksponentno pojemajočih svetlobnih bliskov s predlaganim kompenzacijskim algoritmom.

Language:Slovenian
Keywords:scintilacijski detektor, fotopomnoževalka, nasičenje, kompenzacija
Work type:Master's thesis/paper (mb22)
Organization:FE - Faculty of Electrical Engineering
Year:2018
Views:635
Downloads:489
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Secondary language

Language:English
Title:Characterization of a photomultiplier in a saturation regime with a scintillation flash simulator
Abstract:
The introductory part of the master thesis presents the structure and importance of scintillation detectors, overviews the types of scintillation materials and evaluates the efficiency for detection of various incoming particles. After listing the key features of typical scintillation materials, such as the specific intensity of the output light signal and the most frequent applications, the thesis lists some possibilities for optical coupling and continues with the historical development of photoelectric converters, focusing on the structure and operation of a photomultiplier. The main part begins with motivational arguments for building a scintillation flash simulator. In addition to specifications for such a device there are also descriptions of the electronic design procedures, selection criteria for the most suitable components, results of the measurements of its operating characteristics and instructions for use. The rest of the technical documentation is collected in the appendices. The results of the measurements are analysed with a standard digital signal processing method for detector signals. Finally, we propose a compensation of its response to a random burst of light pulses with exponentially diminishing tails.

Keywords:scintillation detector, photomultiplier, saturation, compensation

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