Scintillating crystal detector
View Patent ↗A detector using scintillating crystals is provided. The scintillating crystal is based on cerium doped lutetium yttrium orthosilicate (Ce:LYSO). With calcium (Ca) doped into Ce:LYSO, the electrovalence of Ce is further uniformly distributed. The scintillating crystal obtains high stability with 2 to 10 times greater electrical degree than that of a general scintillating crystal. Thus, radiative induction to cancer cells is improved and distribution of the cancer cells is easily figured out.
1. A scintillating crystal detector, comprising:
a scintillating crystal structure, said scintillating crystal structure being obtained by doping calcium (Ca) atoms into cerium doped lutetium yttrium orthosilicate (Ce:LYSO),
wherein said Ca atoms are obtained from calcium oxide having a density between 0.00001 and 0.05.
2. The detector according to claim 1 ,
wherein said Ca atoms have charge compensation with cerium atoms (Ce) having 4 positive electrovalence (Ce +4 ) in Ce:LYSO to obtain Ce atoms having 3 positive electrovalence (Ce +3 ) and thus electrovalence of Ce is uniformly distributed in said scintillating crystal structure.
3. The detector according to claim 1 ,
wherein a plurality of said scintillating crystal detectors is put in a positron emission tomographer (PET).