Method for producing a scintillator ceramic

Details Method for producing a scintillator ceramic Method for producing a scintillator ceramic

1993-07-26

1994-03-22

Group, Karl

Compositions

Inorganic luminescent compositions

Compositions containing halogen; e.g., halides and oxyhalides

264 21, C09K 1108

Patent

active

052961630

ABSTRACT:
For manufacturing a scintillator ceramic of a rare earth oxisulfide, a pigment powder is compressed by single-axis hot-pressing to form a ceramic member having at least 99.9% of the theoretic density, the pigment powder having the general formula (M.sub.1 xLn.sub.x).sub.2 O.sub.2 S, whereby M denotes at least one element from the group Y, La and Gd, Ln represents at least one element from the group Eu, Ce, Pr, Tb, Yb, Dy, Sm and Ho, and whereby 1.times.10.sup.-6 .ltoreq.x.ltoreq.2.times.10.sup.-1, and the powder having a specific surface according to BET of at least 10 m.sup.-2 /g.

REFERENCES:
patent: 3502590 (1970-03-01), Royce et al.
patent: 3878280 (1975-04-01), Dutta et al.
patent: 4242221 (1980-12-01), Cusano et al.
patent: 4733088 (1988-03-01), Yamada et al.
patent: 4863882 (1989-09-01), Matsuda et al.
patent: 4888121 (1989-12-01), Yale
patent: 5075267 (1991-12-01), Fujii et al.

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