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Single Crystal Growth, Optical Properties and Neutron Response of Ce3+ Doped LiCaAlF6.
- Source :
- IEEE Transactions on Nuclear Science; Dec2009 Part 1 of 2, Vol. 56 Issue 6, p3796-3799, 4p, 1 Chart, 7 Graphs
- Publication Year :
- 2009
-
Abstract
- Ce2% : <superscript>6</superscript>LiCaAlF<subscript>6</subscript> (<superscript>6</superscript>LiCAF) single crystal (nominal composition) with 2 mm in diameter and 50 mm in length was grown by the micro-pulling-down method. Emission from the perturbed Ce<superscript>3+</superscript> centers was observed in an α-ray excited radioluminescence. The neutron response was compared with Li-glass (GS20, Saint-Gobain) using <superscript>252</superscript>Cf. The scintillation decay time of Ce2% <superscript>6</superscript>LiCAF is 38 nsec, which is twice as short as that of GS20. Using Hamamatsu photomultiplier H7416 the photoelectron yield about a half of that of GS20 has been measured for the Ce : <superscript>6</superscript>LiCAF single crystal. Considering the light yield of GS20 (6000 phot/neutron) and the spectral correction due to the different emission peak position in both materials, the light yield of Ce : <superscript>6</superscript>LiCAF single crystal is estimated about 4200 phot/neutron. [ABSTRACT FROM AUTHOR]
- Subjects :
- NEUTRONS
PERTURBATION theory
PHOTOMULTIPLIERS
PHOTONS
PHOTOELECTRONS
Subjects
Details
- Language :
- English
- ISSN :
- 00189499
- Volume :
- 56
- Issue :
- 6
- Database :
- Complementary Index
- Journal :
- IEEE Transactions on Nuclear Science
- Publication Type :
- Academic Journal
- Accession number :
- 47838334
- Full Text :
- https://doi.org/10.1109/TNS.2009.2033115