Quick flashing glass and its prepn process

Abstract

The present invention discloses one kind of quick flashing glass for application in high-energy physics, nuclear physics, nuclear medicine, geophysics, industrial detection and other fields and its preparation process. The flashing glass material has silicate glass, germanate glass other heavy metal oxide as main component, and introduced high-density ZnO as luminescent center. It is prepared through three steps of preparing glass material; smelting the material; and heat treatment. Test shows that the serial glass material has the features of simple smelting process, powerful glass forming capacity, easy density regulation and high luminescent ion density. Compared with available Ce3+-doping quick flashing glass, the present invention has the features of high UV transmissibility, fast attenuation and high fluorescent strength.

Description

technical field [0001] The invention relates to a scintillator material and a preparation method thereof, in particular to a fast scintillation glass with ZnO as a luminescence center and a preparation method thereof. Background technique [0002] With the expansion of the field of human activities and the improvement of the level of science and technology, new requirements are put forward for the performance of scintillation materials, especially scintillators with high resolution and high radiation resistance. For such applications, some traditional scintillation materials (such as NaI:Tl, CsI:Tl, BGO) etc. cannot meet the requirements for use. Since the 1990s, there have been many reports at home and abroad on the development and creation of new fast scintillation materials used in high-energy physics and other fields. In addition to scintillation crystals, the research and development of scintillation glass is also attracting attention, mainly because the preparation co...

AI Technical Summary

Problems solved by technology

However, Ce 3+ Ion doping has the following limitations: due to Ce 3+ The concentration quenching effect of ions is obvious, so that the amount of introduction is limited, thereby affecting its luminous intensity; due to Ce 3+ The ions are sensitive to the light alkalinity of the matrix glass, which tends to red-shift the UV and visible absorption cut-off wavelengths of the glass, thus affecting the UV and visible transmittance of the glass; due to Ce 3+ Ions tend to lose an electron and become tetravalent ions (Ce 4+ ), the latter will produce absorption in the visible region, so the melting process must use a reducing atmosphere, and platinum crucibles cannot be used, only quartz crucibles or ceramic crucibles can be used. Problems such as bubbles and streaks are difficult to solve, thus affecting the optical uniformity of the glass