Rare earth scintillator material with light guide structure, and preparation method and application thereof
A technology of scintillator materials and light guide structures, which is applied in the growth of polycrystalline materials, chemical instruments and methods, and crystal growth, can solve the problems of low X-ray conversion efficiency and reduced imaging resolution of image screens, and improve imaging resolution High efficiency, easy operation, and reduced scattering effect
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[0029] Example 1 Y 0.997 Tb 0.003 AlO 3 / Al 2 O 3 Rare earth eutectic scintillator material
[0030] A rare earth scintillator material with a light guide structure, the chemical expression of the scintillator material is Y 0.997 Tb 0.003 AlO 3 / Al 2 O 3 , The preparation method of the scintillator material is as follows:
[0031] (1) Weigh the raw material yttrium oxide (Y 2 O 3 ) 2.5890g, terbium oxide (Tb 4 O 7 ) 0.0129g, alumina (Al 2 O 3 ) 3.9255g, add anhydrous ethanol as a dispersant to the raw material, grind it in an agate mortar and put it into an alumina crucible, put the crucible into a box-type muffle furnace, and set a heating rate of 4℃ / min at 1400℃, Sintering in a CO reduction atmosphere for 10 hours, after the sample is cooled to room temperature, grind to powder to obtain the eutectic powder pre-fired raw material;
[0032] (2) Put the pre-fired raw materials into an iridium-gold crucible with a small hole at the bottom, place the iridium-gold crucible in the micro ...
Example Embodiment
[0034] Example 2 Y 0.95 Tb 0.05 AlO 3 / Al 2 O 3 Rare earth eutectic scintillator material
[0035] Weigh the raw material yttrium oxide (Y 2 O 3 ) 2.4670g, terbium oxide (Tb 4 O 7 ) 0.2150g, alumina (Al 2 O 3 ) 3.9255g, by the same method as in Example 1, at a pull-down rate of 1.5 mm / min to obtain Y 0.95 Tb 0.05 AlO 3 / Al 2 O 3 Rare earth eutectic scintillator material.
Example Embodiment
[0036] Example 3 Gd 0.99 Tb 0.01 AlO 3 / Al 2 O 3 Rare earth eutectic scintillator material
[0037] Weigh the raw material gadolinium oxide (Gd 2 O 3 ) 4.1270g, terbium oxide (Tb 4 O 7 ) 0.0430g, alumina (Al 2 O 3 ) 3.9255g, Gd is obtained by the same method as in Example 1, at a pull-down rate of 2.0 mm / min 0.99 Tb 0.01 AlO 3 / Al 2 O 3 Rare earth eutectic scintillator material.
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