Scintillating ceramics based on non-stoichiometric strontium hafnate

0500697 - FZÚ 2019 RIV NL eng J - Článek v odborném periodiku
Jarý, Vítězslav - Boháček, Karel - Pejchal, Jan - Beitlerová, Alena - Trunda, Bohumil - Pánek, D. - Brůža, P. - Kurosawa, S. - Yoshikawa, A. - Nikl, Martin
Scintillating ceramics based on non-stoichiometric strontium hafnate.
Optical Materials. Roč. 77, Mar (2018), s. 246-252. ISSN 0925-3467. E-ISSN 1873-1252
Grant CEP: GA ČR GA16-15569S
Institucionální podpora: RVO:68378271
Klíčová slova: scintillating ceramics * non-stoichiometry * strontium hafnate * luminescence * annealing
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 2.687, rok: 2018

A set of non-stoichiometric strontium-hafnate ceramic samples was synthesized by the spark plasma sintering technique from powder precursors of optimized composition. The scintillation and optical properties of ceramic samples were investigated by means of time-resolved luminescence spectroscopy. We measured radioluminescence, photoluminescence excitation and emission spectra as well as luminescence decays excited by UV and soft X-rays, respectively. Multiple annealing was employed to optimize ceramic performance. Furthermore, optical properties of powder and ceramic sample of the same composition were compared. Application potential of studied ceramics in superfast imaging applications is discussed as well.

Trvalý link: http://hdl.handle.net/11104/0293025