	LGB scintillation crystal for neutron detection

LGB ( ⁶Li₆^natGd¹⁰B₃O₉:Ce⁺ ) ( Lithium Gadrium Borate, Ce doped )
LGB scintillation single crystal and applied instruments are under the R&D work at Photogenics. below photos show a couple of LGB crystal example, and emission spectrum is shown in right		LGB scintillation crystal emission spectrum

LGB crystal cone	sliced LGB crystal

physical constants of LGB:Ce
specific gravity ( Li-6, Gd-nat., B-10 )	3.50	max emission wavelength	~ 390nm
photon yield (electron)	5,310 /MeV	photon yield (neutron capture)	9,960 /MeV
emission decay ( major )	~ 200nSec	emission decay ( minor )	~ 800nSec
refractive index, @405nm	1.670	refractive index, @405nm	1.646

Left spectrum exhibits LGB single crystal response to Cf-252 source.

as an extended trial of LGB scintillation crystal application, tiny crystal particles diffused into PVT base plastic matrix scintillator is also under the development
	Left spectrum shows LGB / PVT base plastic scintillator matrix response to Cf-252 source photograph in right, shows the example of thin disc shape LGB/PVT-matrix element ( 2mm thick x 2 inch dia )

LGB scintillation crystal and instruments are under the R&D.
and . . . . this web-page is still under the construction.

	Photogenics a division of Mission Support Incorporated
	515 East, 1860 South, Provo, Utah 85606
	phone# fax#	+1-801-374-6722 +1-801-374-6652

represented by	APACE Science, Inc. Mitomo-Bldg.#2 - 6F, Ebisu-nishi 2-Chome, Shibuya-Ku, Tokyo 150-0021
Phone: Fax:	+81 (0)3-3463-3204 +81 (0)3-3463-3205

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