Title:
SCINTILLATING SUBSTANCE AND SCINTILLATING WAVE-GUIDE ELEMENT
Document Type and Number:
WIPO Patent Application WO/1999/035512
Kind Code:
A1
Abstract:
The present invention pertains to the fields of nuclear physics, medicine and petroleum industry, and may essentially be used for measuring X-ray, gamma and alpha radiation. This invention can also be used for monitoring the concentration of transuranic radionuclides in human habitat, for the non-destructive structural analysis of solid bodies, for performing a three-dimensional positron-electron computerised tomography, etc. This invention essentially relates to the introduction of additional ingredients into the chemical composition of a scintillating substance based on oxyorthosilicate crystals which include cerium (Ce) as well as Lu¿2?SiO¿5? capable of crystallisation in the structural type. The results of this invention are: an increase in the luminescence light efficiency; a reduction of the luminescence period of Ce?3+¿ ions; an increase in the reproducibility of grown crystal properties; a lower cost of the starting mixture used for growing scintillator crystals and containing Lu¿2?O¿3? in large quantities; a higher introduction efficiency of the luminescent radiation from a scintillating crystal into a fiberoptic wave-guide; the prevention of crystal decrepitation during the element manufacturing process; the creation of wave-guide properties in scintillating elements; and the elimination of the expensive mechanical polishing of the side surface thereof.
Inventors:
ZAGUMENNY ALEXANDR IOSIFOVICH (RU)
ZAVARTSEV JURY DMITRIEVICH (RU)
STUDENIKIN PAVEL ALEXEEVICH (RU)
ZAVARTSEV JURY DMITRIEVICH (RU)
STUDENIKIN PAVEL ALEXEEVICH (RU)
Application Number:
PCT/RU1998/000156
Publication Date:
July 15, 1999
Filing Date:
May 27, 1998
Export Citation:
Assignee:
ZAGUMENNY ALEXANDR IOSIFOVICH (RU)
ZAVARTSEV JURY DMITRIEVICH (RU)
STUDENIKIN PAVEL ALEXEEVICH (RU)
ZAVARTSEV JURY DMITRIEVICH (RU)
STUDENIKIN PAVEL ALEXEEVICH (RU)
International Classes:
C09K11/00; C09K11/08; C09K11/77; G01T1/202; C09K11/79; C30B15/00; C30B29/34; G02B6/02; G02B6/028; (IPC1-7): G01T1/20; C09K11/79; G02B6/18
Foreign References:
| SU1122113A1 | 1992-04-30 | |||
| US4958080A | 1990-09-18 | |||
| EP0350391A1 | 1990-01-10 | |||
| FR2637088A1 | 1990-03-30 | |||
| US4733940A | 1988-03-29 | |||
| US4413184A | 1983-11-01 |
Other References:
See also references of EP 1004899A4
Attorney, Agent or Firm:
Kurapov, Gennady Petrovich (Leningradsky prospekt 2, Moscow 0, RU)
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