Scintillator materials containing lanthanum fluorides

Details Scintillator materials containing lanthanum fluorides Scintillator materials containing lanthanum fluorides

1990-04-03

1991-05-14

Westin, Edward P.

Radiant energy

Invisible radiant energy responsive electric signalling

With or including a luminophor

25036302, 2504841, 2523014H, G01T 1202, C09K 1185

Patent

active

050158600

ABSTRACT:
An improved radiation detector containing a crystalline mixture of LaF.sub.3 and CeF.sub.3 as the scintillator element is disclosed. Scintillators made with from 25% to 99.5% LaF.sub.3 and the remainder CeF.sub.3 have been found to provide a balance of good stopping power, high light yield and short decay constant that is equal to or superior to other known scintillator materials, and which may be processed from natural starting materials containing both rare earth elements. The radiation detectors disclosed are favorably suited for use in general purpose detection and in positron emission tomography.

REFERENCES:
patent: 4761347 (1988-08-01), Nakamura
patent: 4889996 (1984-12-01), Kotera et al.

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