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Room-temperature particle detectors with guard rings based on semi-insulating InP co-doped with Ti and Zn
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SYSNO ASEP 0326033 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Ostatní články Název Room-temperature particle detectors with guard rings based on semi-insulating InP co-doped with Ti and Zn Překlad názvu Detektory alfa-částic s "guard-rings" elektrodou na bázi InP dopovaného Ti a Zn operujici při pokojové teplotě Tvůrce(i) Yatskiv, Roman (URE-Y) RID, ORCID
Žďánský, Karel (URE-Y)
Pekárek, Ladislav (URE-Y)Zdroj.dok. Nuclear Instruments & Methods in Physics Research Section A. - : Elsevier - ISSN 0168-9002
Roč. 598, č. 3 (2009), s. 759-763Poč.str. 5 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova radiation detector ; InP ; crystal growth Vědní obor RIV JA - Elektronika a optoelektronika, elektrotechnika CEP KAN400670651 GA AV ČR - Akademie věd CEZ AV0Z20670512 - URE-Y (2005-2011) DOI doi:10.1016/j.nima.2008.10.001 Anotace 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 at low 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. Pracoviště Ústav fotoniky a elektroniky Kontakt Petr Vacek, vacek@ufe.cz, Tel.: 266 773 413, 266 773 438, 266 773 488 Rok sběru 2009
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