| 摘要 |
A novel phosphor for a radiation detector is based on a rare earth oxysulphide of formula (M1-xLnx)2O2S (I) which contains 10<-1> to 10<-6> (pref. 5 x 10<-2> to 10<-5>) mol.% Mo to reduce luminescence persistence. In (I), M = at least one of Eu, Ce, Pr, Tb, Yb, Dy, Sm, and Ho; and x = 2 x 10<-1> to 10<-6>. Also claimed are (i) a process for prodn. of a ceramic phosphor with reduced luminescence persistence; and (ii) use of Mo in 10<-1> to 10<-6> mol.% concn. as additive in a ceramic rare earth oxysulphide phosphor for reducing luminescence persistence.
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| 申请人 |
SIEMENS AG, 80333 MUENCHEN, DE |
发明人 |
ROSSNER, WOLFGANG, DR.-ING., 83607 HOLZKIRCHEN, DE;GRABMAIER, CHRISTA, PROF. DR., 82335 BERG, DE;BOEDINGER, HERRMANN, DIPL.-ING. (FH), 82178 PUCHHEIM, DE;LEPPERT, JUERGEN, DIPL.-ING. (FH), 82266 INNING, DE;JAHNKE, ANDREAS, DR., 81827 MUENCHEN, DE;SCHUBERT, WOLFGANG, DR., 91056 ERLANGEN, DE |
