New CuI Crystal and growing method thereof

Abstract

The present invention discloses one kind of CuI crystal and its growth method, and the CuI crystal is in regular gamma phase tetrahedron structure of size greater than 2 mm. The crystal growth process adopts concentration controlling technology, combines complexing and de-complexing, and has the advantages of simple equipment, low cost, low growth temperature, easy-to-control growth process, etc. The grown CuI crystal has high gamma phase purity, less stress, less faults, good appearance and relatively large size. As one new generation of very fast scintillator, the present invention may find its important application in high speed X-ray counting, gamma ray, electronic beam measurement, etc. and may be also used as fast ion conductor.

Description

technical field [0001] The invention relates to a crystal growth method, in particular to a CuI crystal growth method. Background technique [0002] With the rapid development of high-energy physics, nuclear physics and nuclear technology applications, ordinary inorganic scintillation crystals will be difficult to meet the needs of ultra-high count rate measurement. Therefore, in recent years, countries are actively conducting research on new ultra-fast scintillator. Copper iodide (CuI) crystal, a wide bandgap semiconductor material, has extremely fast scintillation characteristics at room temperature, and its luminescence decay time is only 90ps, and there is no slow component. It is the fastest inorganic scintillation crystal known so far. As a new generation of ultra-fast scintillator, it has important application value in ultra-high count rate X-ray, γ-ray and electron beam measurement. The light yield of CuI crystal is BaF 2 A quarter of the luminous intensity of the ...

AI Technical Summary

Problems solved by technology

So far, there have been no reports on the use of concentration control technology in the growth of CuI crystals by the complexation-decomplexation method at home and abroad.