Development of a novel red-emitting cesium hafnium iodide scintillator

0521559 - FZÚ 2020 RIV GB eng J - Článek v odborném periodiku
Kodama, S. - Kurosawa, S. - Ohno, M. - Yamaji, A. - Yoshino, M. - Pejchal, Jan - Král, Robert - Ohashi, Y. - Kamada, K. - Yokota, Y. - Nikl, Martin - Yoshikawa, A.
Development of a novel red-emitting cesium hafnium iodide scintillator.
Radiation Measurements. Roč. 124, May (2019), s. 54-58. ISSN 1350-4487. E-ISSN 1879-0925
Grant CEP: GA ČR GJ18-17555Y; GA MŠMT(CZ) EF16_019/0000760
Grant ostatní: AV ČR(CZ) JSPS-17-18; OP VVV - SOLID21(XE) CZ.02.1.01/0.0/0.0/16_019/0000760
Program: Bilaterální spolupráce
Institucionální podpora: RVO:68378271
Klíčová slova: single crystalline scintillator * high effective atomic number material * red-emitting scintillator * Si-APD
Obor OECD: Condensed matter physics (including formerly solid state physics, supercond.)
Impakt faktor: 1.512, rok: 2019
Způsob publikování: Omezený přístup
https://doi.org/10.1016/j.radmeas.2019.03.005

Cesium hafnium iodide was reported as a novel red-emitting scintillator in our previous article, while optimization of the crystal quality and evaluation of the scintillation performance were insufficient. In this study, a large and transparent cesium hafnium iodide single crystalline specimen was obtained using slow crystal growth speed. Coupled with a Si avalanche photo-diode, the full width at half maximum energy resolution was evaluated to be 4.2 ± 0.2% at 662 keV which was the best value among conventional red-emitting scintillators. The scintillation light output, non-proportional response of light output and scintillation decay were also evaluated with a photomultiplier tube.

Trvalý link: http://hdl.handle.net/11104/0306155