SCINTILLATION SUBSTANCE IN THE FORM OF SILICATE-BASED CRYSTALLINE COMPOUND Russian patent published in 2008 - IPC C30B29/34 C09K11/08 G01T1/202 

FIELD: scintillation materials.

SUBSTANCE: invention relates to novel crystalline scintillators that can be used to detect ionizing emissions for medical diagnostics, nuclear geophysics, and for non-damaging checking of nutrition product quality. Silicate-based scintillation substance contains lutetium, cerium, and germanium, its composition being defined by following chemical formula: Ce_2xLu_2(1-x)Si_1-yGe_yO₅, where x = 1·10^-4-0.03 and y = 1·10^-4-0.20. Scintillation substance can be supplemented by yttrium and, in this case, its composition will be defined by following formula: Ce_2xLu_2(1-x-z)Y_2xSi_1-yGe_yO₅, where x = 1·10^-4-0.03, y = 1·10^-3-0.20, and z = 1·10^-3-0.5. Novel scintillation substances exhibit improved consumer's properties (high density, high light output, short scintillation deexcitation time), which extends application area thereof and, in particular, allows use in detection devices for registration and spectrometry of particles and quanta having high, median, and low energies. When in use in medical diagnostics, elevated high light output will increase sensitivity of registration system and contrast of image, whereas high density and, thereby, high absorption capacity for ionization emission will allow special resolution to be improved, and shorter scintillation deexcitation time will reduce radiation exposure for a patient.

EFFECT: improved consumer's properties and thereby extended application area.

2 cl, 1 dwg, 2 tbl, 2 ex