Detektory alfa-částic s "guard-rings" elektrodou na bázi InP dopovaného Ti a Zn operujici při pokojové teplotě

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F09%3A00326033" target="_blank" >RIV/67985882:_____/09:00326033 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Room-temperature particle detectors with guard rings based on semi-insulating InP co-doped with Ti and Zn

Popis výsledku v původním jazyce

Particle detectors made with aguard-ring (GR) electrode, operating at room temperature, have been studied. The detectors were fabricated on a semi insulating InP crystal co-doped with Ti and Zn, grown using the Liquid-Encapsulated Czochralski technique.The detection performance of the particle detectors was evaluated using alpha particles emitted from a 241Am source. Good detektor performance has been achieved with measured charge-collection efficiencies of 99.9% and 98.2% and FWHM energy resolutions of 0.9% and 2.1%. The measurements were carried out at 230K for negative and positive bias voltages of the irradiated electrode. Electron and hole charge-collection efficiencies (CCEs) were measured at various temperatures. At room temperature, unlike atlow temperature (T>250K), the hole CCE was better than the electron CCE, which can be explained by the presence of electron-trapping centres in InP with a temperature-dependent capture rate.

Název v anglickém jazyce

Room-temperature particle detectors with guard rings based on semi-insulating InP co-doped with Ti and Zn

Popis výsledku anglicky

Particle detectors made with aguard-ring (GR) electrode, operating at room temperature, have been studied. The detectors were fabricated on a semi insulating InP crystal co-doped with Ti and Zn, grown using the Liquid-Encapsulated Czochralski technique.The detection performance of the particle detectors was evaluated using alpha particles emitted from a 241Am source. Good detektor performance has been achieved with measured charge-collection efficiencies of 99.9% and 98.2% and FWHM energy resolutions of 0.9% and 2.1%. The measurements were carried out at 230K for negative and positive bias voltages of the irradiated electrode. Electron and hole charge-collection efficiencies (CCEs) were measured at various temperatures. At room temperature, unlike atlow temperature (T>250K), the hole CCE was better than the electron CCE, which can be explained by the presence of electron-trapping centres in InP with a temperature-dependent capture rate.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

<a href="/cs/project/KAN400670651" target="_blank" >KAN400670651: Výzkum rozhraní kovových nanočástic s InP pro monitoring nežádoucích látek, plynů a záření v životním prostředí</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Nuclear Instruments & Methods in Physics Research Section A

ISSN

0168-9002

e-ISSN

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Svazek periodika

598

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

5

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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