Luminescence and scintillation properties of strontium hafnate and strontium zirconate single crystals

Pejchal, Jan; Guguschev, Christo; Schulze, M.; Jarý, V.; Mihóková, E.; Rubešová, K.; Jakeš, V.; Bárta, Jan; Nikl, M.

doi:10.1016/j.optmat.2019.109494

Cited by 6 publications

(2 citation statements)

References 43 publications

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“…The single crystals of CaHfO 3 and SrHfO 3 were grown from a non-stoichiometric composition because alkaline-earth elements are volatilized at high temperature. 73,85) The single crystal growth of BaHfO 3 has not been achieved yet. These single crystals show a clear photoabsorption and full-energy peak under ionizing-radiation irradiation, and the light yield is calculated using these crystals.…”

Section: Materials Synthesismentioning

confidence: 99%

Investigation of scintillation properties of Hf-based oxide materials

Fukushima

Nakauchi

Kato

et al. 2022

Jpn. J. Appl. Phys.

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The scintillation properties of Hf-based oxide materials are reviewed briefly. In particular, we focused the undoped, Ti-doped, and rare-earth-doped HfO2, MHfO3 (M = Ca, Sr, and Ba), and RE2Hf2O7 (RE = La, Gd, and Lu). The properties explained here are scintillation spectra, scintillation decay, and light yield estimated by the measurement of the pulse height distribution. Further, the synthesis methods of Hf-based oxide material single crystals and transparent ceramics include in this review because the development of Hf-based oxide material scintillators is largely influenced by the advances in the synthesis technology of single crystals and transparent ceramics.

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Section: Materials Synthesismentioning

confidence: 99%

Investigation of scintillation properties of Hf-based oxide materials

Fukushima

Nakauchi

Kato

et al. 2022

Jpn. J. Appl. Phys.

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“…However, the OFZ method, as a containerless technology for fast crystal growth, has attracted research interests in recent years. A series of crystal scintillators, such as Ce 3+ doped Gd 3 (Ga, Al) 5 O 12 (Ce: GGAG) [23], SrHfO 3 (SHO), and SrZrO 3 (SZO) [24], Ce: (La, Gd) 2 Si 2 O 7 crystals [25], etc., have been grown by OFZ method successively.…”

Section: Introductionmentioning

confidence: 99%

Ce3+, Pr3+ Co-Doped Lu3Al5O12 Single Crystals and Ceramics: A Comparative Study

et al. 2022

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Ce3+, Pr3+ co-doped Lu3Al5O12 (Ce, Pr:LuAG) single crystals and ceramics were prepared using the optical floating zone (OFZ) and reactive vacuum sintering methods, respectively. The microstructure, photo- (λex = 450 nm), and radio-luminescence (under X-ray excitation) performance, as well as scintillation light yield (LY, under γ-ray, 137Cs source) of both materials, were investigated and compared. Ce, Pr:LuAG ceramics had an in-line transmittance of approximately 20% in the visible light range, while the analogous crystals were more transparent (~65%). The X-ray excited luminescent (XEL) spectra showed the characteristic Ce 3+ and Pr3+ emissions located at 310 nm, 380 nm, and 510 nm. The highest LY of the Ce, Pr:LuAG ceramics reached 34,112 pho/MeV at 2 μs time gate, which is higher than that of a single crystal. The ratio of LY values (LY2/LY0.75) between shaping times of 0.75 μs and 2 μs indicated a faster scintillation decay of ceramics regarding single crystals. It was ascribed to the lower effective concentration of luminescent activators in single crystals because of the coefficient segregation effect.

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