Scintillation properties of Zr co-doped Ce:(Gd, La).sub.2./sub.Si.sub.2./sub.O.sub.7./sub. grown by the Czochralski process

0461358 - FZÚ 2017 RIV GB eng J - Journal Article
Murakami, R. - Kurosawa, S. - Shoji, Y. - Jarý, Vítězslav - Ohashi, Y. - Pejchal, Jan - Yokota, Y. - Kamada, K. - Nikl, Martin - Yoshikawa, A.
Scintillation properties of Zr co-doped Ce:(Gd, La)₂Si₂O₇ grown by the Czochralski process.
Radiation Measurements. Roč. 90, Jul (2016), s. 162-165. ISSN 1350-4487. E-ISSN 1879-0925.
[International Conference on Luminescent Detectors and Transformers of Ionizing Radiation (LUMDETR). Tartu (Estonsko), 20.09.2015-25.09.2015]
R&D Projects: GA MŠMT(CZ) LH14266
Institutional support: RVO:68378271
Keywords : scintillator * pyrosilicate * La-GPS * Czochralski process * co-doping effect
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 1.442, year: 2016

The (Gd0.75,Ce0.015,La0.235)2Si2O7 (Ce:La-GPS) single crystals co-doped with 0, 100, 200, 500 and 1000 ppm Zr were grown by the Czochralski process, and their scintillation properties were investigated. We investigated the co-doping effect of a stable tetravalent ion in Ce:La-GPS for the first time. The scintillation decay times in the faster component were shortened with increasing the Zr concentration. While the non-co-doped sample showed ~63 ns day time, the Zr 100, 200, 500 and 1000 ppm co-doped samples showed ~61, ~59, ~57, ~54 ns, respectively. Additionally, light output, photon nonproportional response (PNR) and other optical properties were investigated.
Permanent Link: http://hdl.handle.net/11104/0261816