Zecotek Medical Systems Inc.

Yuri Dmitrievich Zavartsev

Alexander Iosifovich Zagumennyi

Sergei Alexandrovich Kutovoi

Inventions relates to scintillation substances and they may be utilized in nuclear physics, medicine and oil industry for recording and measurements of X-ray, gamma-ray and alpha-ray, nondestructive testing of solid states structure, three-dimensional positron-emission tomography and X-ray tomography and fluorography. Substances based on silicate comprising lutetium and cerium characterized in that compositions of substances are represented by chemical formulae CeLuSiO, CeLiLuASiO, CeLiLu&#x25a1;ASiO, where A is at least one element selected from group consisting of Gd, Sc, Y, La, Eu, Tb, x is value between 1&#xd7;10f.units and 0.02 f.units., y is value between 0.024 f.units and 0.09 f.units, z is value does not exceeding 0.05 f.units, q is value does not exceeding 0.2 f.units, p is value does not exceeding 0.05 f.units. Achievable technical result is the scintillating substance having high density, high light yield, low afterglow, and low percentage loss during fabrication of scintillating elements.

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Moscow, Russia

Yuri Dmitrievich Zavartsev