J
J. Pejchal
Researcher at Czech Technical University in Prague
Publications - 19
Citations - 780
J. Pejchal is an academic researcher from Czech Technical University in Prague. The author has contributed to research in topics: Luminescence & Scintillation. The author has an hindex of 11, co-authored 19 publications receiving 724 citations.
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Journal ArticleDOI
Shallow traps and radiative recombination processes in Lu3Al5O12:Ce single crystal scintillator
Martin Nikl,Anna Vedda,Mauro Fasoli,I. Fontana,V. Laguta,E. Mihokova,J. Pejchal,J. Rosa,K. Nejezchleb +8 more
TL;DR: In this article, thermal stimulated luminescence (TSL) glow curves and emission spectra were studied in undoped and Ce-doped single crystals by wavelength resolved TSL measurements in the $10\char21{}310\phantom{\rule{0.3em}{0ex}}\mathrm{K}$ range.
Journal ArticleDOI
Thermally stimulated tunneling in rare-earth-doped oxyorthosilicates
A. Vedda,M. Nikl,Mauro Fasoli,E. Mihokova,J. Pejchal,Michal Dušek,Guozhong Ren,Christopher R. Stanek,Kenneth J. McClellan,Darrin D. Byler +9 more
TL;DR: In this article, defects acting as electron traps were investigated in the presence of oxygen vacancies acting as traps in rare-earth ionites, and the glow curves for both LSO and LYSO were compared by wavelength-resolved thermally stimulated luminescence (TSL) measurements from 20 to 400.
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Antisite defect-free Lu3(GaxAl1−x)5O12:Pr scintillator
Martin Nikl,J. Pejchal,Eva Mihokova,J.A. Mares,Hiraku Ogino,Akira Yoshikawa,Tsuguo Fukuda,Anna Vedda,Carmelo D'Ambrosio +8 more
TL;DR: In this paper, the gallium-doped Lu3(GaxAl1−x)5O12:Pr, x=0-1, single crystals were grown by the micro-pulling-down method and studied luminescence and scintillation characteristics of the sample set focusing on their dependence on gallium content.
Journal ArticleDOI
Crystal Growth and Scintillation Properties of Ce Doped ${\rm Gd}_{3}({\rm Ga},{\rm Al})_{5}{\rm O}_{12}$ Single Crystals
Kei Kamada,Takayuki Yanagida,J. Pejchal,M. Nikl,Takanori Endo,Kousuke Tsutsumi,Yutaka Fujimoto,Akihiro Fukabori,Akira Yoshikawa +8 more
TL;DR: In this paper, light yield change along the growth direction and effects of Ce concentration on scintillation properties in Ce:GAGG were studied and it was proposed that the increase of Ga concentration along the growing direction is the main cause of the decrease of LY.
Journal ArticleDOI
Scintillator Materials—Achievements, Opportunities, and Puzzles
Martin Nikl,E. Mihokova,J. Pejchal,Anna Vedda,Mauro Fasoli,I. Fontana,Valentin V. Laguta,V. Babin,Karel Nejezchleb,Akira Yoshikawa,Hiraku Ogino,Guohao Ren +11 more
TL;DR: In this paper, the participation of shallow and deep traps in the processes of energy transfer and capture is studied by means of time resolved emission spectroscopy and thermoluminescence in several groups of the Ce3+ and Pr3+-doped complex oxide single crystal scintillators.