公开(公告)号：US10018735B2

公开(公告)日：2018-07-10

申请号：US14903640

申请日：2014-07-17

Applicant: KONINKLIJKE PHILIPS N.V.

Inventor： Cornelis Reinder Ronda ,  Georg Greuel ,  Thomas Justel ,  Benjamin Herden ,  Tim Koecklar

IPC: G01T1/202 ,  C09K11/77

CPC classification number: G01T1/2023 ,  C09K11/7773

Abstract: A luminescent composition includes a host matrix sensitized by Ce3+ and showing emission in the ultraviolet range. Typical host matrices include fluorides, sulphates, and phosphates, in particular A(Y1-x-yLuxLay)F4, A(Y1-x-yLuxLay)3F10, BaCa(Y1-x-yLuxLay)2F10, and Ba(Y1-x-yLuxLay)2F8, wherein A=Li, Na, K, Rb, or Cs. One or more of these luminescent compositions may be applied as a ceramic or single crystalline converter for CT, PET or SPECT scanners, or as a luminescent powder layer for x-ray intensifying screens.