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Scintillation properties of Cs.sub.4./sub.Mg.sub.3./sub.F.sub.10./sub. crystal grown by micro-pulling-down method
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SYSNO ASEP 0584429 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název Scintillation properties of Cs4Mg3F10 crystal grown by micro-pulling-down method Tvůrce(i) Vaněček, Vojtěch (FZU-D) ORCID
Pejchal, Jan (FZU-D) RID, ORCID
Král, Robert (FZU-D) RID, ORCID
Kučerková, Romana (FZU-D) ORCID
Babin, Vladimir (FZU-D) RID, ORCID
Málková, Zuzana (FZU-D) RID, ORCID
Jurkovičová, Terézia (FZU-D) ORCID
Horiai, T. (JP)
Yamaji, A. (JP)
Yokota, Y. (JP)
Yoshikawa, A. (JP)
Nikl, Martin (FZU-D) RID, ORCID, SAICelkový počet autorů 12 Číslo článku 127568 Zdroj.dok. Journal of Crystal Growth. - : Elsevier - ISSN 0022-0248
Roč. 629, Mar (2024)Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova X-ray diffraction ; single crystal growth ; Halides ; scintillator materials ; scintillators Vědní obor RIV BM - Fyzika pevných látek a magnetismus Obor OECD Condensed matter physics (including formerly solid state physics, supercond.) CEP EF16_019/0000760 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora FZU-D - RVO:68378271 UT WOS 001157990800001 EID SCOPUS 85182872216 DOI 10.1016/j.jcrysgro.2024.127568 Anotace In our search for cross-luminescence (CL) scintillators suitable for fast-timing applications, we have chosen CsMgF3 as one of the perspective candidates. During the attempts to grow CsMgF3 by the micro-pulling-down method, we have revealed the presence of Cs4Mg3F10 which is in contradiction with the published equilibrium phase diagram. The Cs4Mg3F10 has an orthorhombic structure, consisting of face-sharing MgF6 octahedra triplets (4 triplets per unit cell), joined to 4 other triplets by corner sharing. These chain-like structures are separated by Cs+ ions. Moreover, Cs4Mg3F10 is non-hygroscopic despite the hygroscopic nature of CsF. The best crystals were grown from CsF-rich melt to suppress off-stoichiometry due to CsF evaporation during crystal growth. Both radioluminescence spectra and scintillation decay kinetics exhibit complex character and the presence of CL in Cs4Mg3F10 is still under question. However, due to relatively low scintillation efficiency and the presence of slow components in scintillation decay, Cs4Mg3F10 is not suitable for fast-timing applications. Pracoviště Fyzikální ústav Kontakt Kristina Potocká, potocka@fzu.cz, Tel.: 220 318 579 Rok sběru 2025
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