公开(公告)号：WO2005042812A1

公开(公告)日：2005-05-12

申请号：PCT/RU2004/000094

申请日：2004-03-12

Applicant: ZAGUMENNYI, Alexander Iosifovich ,  ZAVARTSEV, Yuri Dmitrievich ,  KUTOVOI, Sergei Alexandrovich

Inventor： ZAGUMENNYI, Alexander Iosifovich ,  ZAVARTSEV, Yuri Dmitrievich ,  KUTOVOI, Sergei Alexandrovich

IPC: C30B29/34

CPC classification number: C09K11/7706 ,  C04B35/16 ,  C04B2235/3203 ,  C04B2235/3208 ,  C04B2235/3224 ,  C04B2235/3225 ,  C04B2235/3227 ,  C04B2235/3229 ,  C30B11/00 ,  C30B15/00 ,  C30B29/34

Abstract: The inventions relate to the scintillation substances and they may be utilized in nuclear physics, medecine 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 computer tomography and fluorography. The scintillating substances based on a silicate comprising a lutetium (Lu) and cerium (Ce) characterised in that the compositions of substances are represented by the chemical formulae Ce x Lu 2+2y-x Si 1-y O 5+y Ce x Li q+p Lu 2-p+2y-x-z A z Si 1-y O 5+y-p Ce x Li q+p Lu 9,33-x-p-z 0,67 A z Si 6 O 26-p where A is at least one element selected from the group consisting of Gd, Sc, Y, La, Eu, Tb, x ia a value between 1x10 -4 f. units and 0.02 f. units., y is a value between 0.024 f. units and 0.09 f. units, z is a value does not exceeding 0.05 f. units, q is a value does not exceeding 0.2 f. units, p is a value does not exceeding 0.05 f. units, Ce x Li 1+q+p Lu 9-x-p-z A z Si 6 O 26-p z is a value does not exceeding 8.9 f. units. The achievable technical result is the scintillating substance having a high density, a high light yield, a low afterglow, and a low percentage loss during fabrication of scintillating elements for three-dimensional tomograph (PET).

Abstract translation: 本发明涉及闪烁物质，它们可用于核物理学，医药和石油工业，用于记录和测量X射线，γ射线和α射线，固态结构的无损检测，三维正电子发射 断层扫描和X线计算机断层扫描和荧光成像。 基于包含镥（Lu）和铈（Ce）的硅酸盐的闪烁物质，其特征在于物质的组成由化学式CexLu2 + 2y-xSi1-yO5 + yCexLiq + pLu2-p + 2y-x- zAzSi1-yO5 + yp CexLiq + pLu9,33-xpz 0,67AzSi6O26-p其中A是选自Gd，Sc，Y，La，Eu，Tb，xia中的至少一种元素， 4> F。 单位和0.02 f。 单位，y是0.024f之间的值。 单位和0.09 f。 单位，z是不超过0.05 f的值。 单位，q值不超过0.2 f。 单位，p是不超过0.05 f的值。 单位，CexLi1 + q + pLu9-x-p-zAzSi6O26-pz的值不超过8.9 f。 单位。 可实现的技术结果是用于三维断层摄影（PET）的闪烁元件的制造中具有高密度，高光收率，低余辉和低百分比损失的闪烁物质。