Original title: Ovlivnění efektivity sběru náboje v detektorech záření laserovými pulsy.
Translated title: Effect of the laser pulse illumination on charge collection efficiency in radiation detectors.
Authors: Betušiak, Marián ; Belas, Eduard (advisor) ; Oswald, Jiří (referee)
Document type: Master’s theses
Year: 2020
Language: cze
Abstract: [cze] [eng]
Hlavným cieľom tejto diplomovej práce je charakterizácia transport náboja v CdZnTe radiačných detektoroch a stúdia vplyvu osvetlenia detektoru na transport náboja.Transportné vlastnosti sú zmerané pomocou metódy laserom-indukovaných tranzientných prúdov a simulácia Monte Carlo bola použitá na fitovanie meraných prúdových waveform. V tejto práci boli skúmané vlastnosti detektoru pripraveného semi-izolačného monokryštálu CdZnTe s platinovými Schottkyho kontaktami za tmy v nepolarizovanom a polarizovanom stave. Vlastnosti detektoru boli tiež skúmané s kontinuálnym nadgapovým LED osvetlením anódy a katódy. The main focus of this thesis is the characterization of the charge transport in CdZnTe radiation detectors and the study of the effect of the detector illumination on charge transport. The transport properties are evaluated using Laser-induced Transient Current Technique and the Monte Carlo simulation is used for fitting the measured current waveforms. The properties of the detector prepared from semi-insulating CdZnTe single crystal with a platinum Schottky contacts were measured in the dark in the unpolarized and polarized state and under the anode and cathode continuous LED above-bandgap illumination.
Keywords: Charge collection; Charge generation; Radiation detectors; Detektory záření; Generace náboje; Sběr náboje

Institution: Charles University Faculties (theses) (web)
Document availability information: Available in the Charles University Digital Repository.
Original record: http://hdl.handle.net/20.500.11956/121143

Permalink: http://www.nusl.cz/ntk/nusl-435081


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Universities and colleges > Public universities > Charles University > Charles University Faculties (theses)
Academic theses (ETDs) > Master’s theses