Inorganic scintillator and process for its fabrication

Details Inorganic scintillator and process for its fabrication Inorganic scintillator and process for its fabrication

2007-10-16

2007-10-16

Porta, David (Department: 2884)

Radiant energy

Invisible radiant energy responsive electric signalling

Semiconductor system

Reexamination Certificate

active

11220743

ABSTRACT:
This invention provides an inorganic scintillator capable of producing scintillation by radiation, which is a crystal comprising metal oxides including Lu, Gd, Ce and Si, which satisfies the condition specified by the following inequality (1A):in-line-formulae description="In-line Formulae" end="lead"?0.0025≦{ACe/(ALu+AGd)}≦0.025,  (1A)in-line-formulae description="In-line Formulae" end="tail"?and which has an absorption coefficient of no greater than 0.500 cm−1for light with a wavelength of 415 nm.

REFERENCES:
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patent: 6706212 (2004-03-01), Venkataramani et al.
patent: 7166845 (2007-01-01), Chai
patent: 64-65482 (1989-03-01), None
C.C. Melcher et al., “Scintillation Properties of GSO”, IEEE Transactions on Nuclear Science, vol. 37, No. 2, Apr. 1990, pp. 161-164.
D.R. Schaart et al., “Properties and Mechanism of Scintillation in CsGd2F7:Ce3+and CsY2F7:Ce3+Crystals”, Journal of Physics.: Condensed Matter 7 (1995) pp. 3063-3088.

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