Title :
Crystal growth and scintillating properties of Pb-doped LiCaAlF6
Author :
Novoselov, Andrey ; Pejchal, Jan ; Nikl, Martin ; Yoshikawa, Akira
Author_Institution :
Tohoku Univ., Sendai
fDate :
Oct. 26 2007-Nov. 3 2007
Abstract :
Using the micro-pulling-down method, undoped and Pb-doped LiCaAlF6 single crystals were grown. Structural parameters studied by X-ray powder diffraction were consistent with P3 macr1c space group. High volatility of PbF2 leads to low dopant concentration, highest level achieved was 0.56 mol% according to electron probe micro-analysis data. Recorded absorption spectra demonstrate intense band within 192-200 nm. Radioluminescence emission at 208 nm shows the decay time of about 19 mus at room temperature.
Keywords :
X-ray diffraction; aluminium compounds; calcium compounds; crystal growth from melt; crystal structure; doping; electron probe analysis; lead; lithium compounds; luminescence; scintillation; space groups; LiCaAlF6:Pb; X-ray powder diffraction; absorption spectra; crystal growth; electron probe micro-analysis; low dopant concentration; micro-pulling-down method; radioluminescence emission; scintillating properties; space group; structural parameters; temperature 293 K to 298 K; wavelength 192 nm to 200 nm; wavelength 208 nm; Crystalline materials; Crystals; Gamma ray detection; Gamma ray detectors; Neutrons; Optical materials; Particle beam optics; Powders; Raw materials; Telephony;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2007. NSS '07. IEEE
Conference_Location :
Honolulu, HI
Print_ISBN :
978-1-4244-0922-8
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2007.4436585
