Luminescence mechanism in doubly Gd, Nd-codoped fluoride crystals for VUV scintillators

0470914 - FZÚ 2017 RIV NL eng J - Článek v odborném periodiku
Pejchal, Jan - Fukuda, K. - Babin, Vladimir - Kurosawa, S. - Yokota, Y. - Yoshikawa, A. - Nikl, Martin
Luminescence mechanism in doubly Gd, Nd-codoped fluoride crystals for VUV scintillators.
Journal of Luminescence. Roč. 169, Jan (2016), s. 682-689. ISSN 0022-2313. E-ISSN 1872-7883.
[International Conference on Luminescence and Optical Spectroscopy of Condensed Matter /17./. Wroclaw, 13.07.2014-18.07.2014]
Grant CEP: GA MŠMT(CZ) LH14266
Institucionální podpora: RVO:68378271
Klíčová slova: barium–lutetium–yttrium fluoride * lutetium fluoride * scintillator * VUV luminescence
Kód oboru RIV: BM - Fyzika pevných látek a magnetismus
Impakt faktor: 2.686, rok: 2016

The Nd-doped, Gd-doped and doubly Nd, Gd-codoped BaLu1.2Y0.8F8 (BaLuYF) and LuF3 single crystals were grown by a micro-pulling-down method. Their photoluminescence, radioluminescence and alpha-ray-excited pulse-height spectra were studied in the vacuum-ultra-violet (VUV) region to confirm their possible application as fast VUV scintillators. Complementary photoluminescence measurements in the ultra-violet/visible spectral region were performed as well. The possibility of scintillation performance improvement by Gd codoping was tested. The positive effect of Gd codoping was confirmed for higher dopant concentrations. Slight improvement of the light yield under alpha-ray excitation due to Gd codoping was confirmed for LuF3:Nd.
Trvalý link: http://hdl.handle.net/11104/0268425