Flux Growth of Oxide Single Crystals to be Used for Radiation Detectors

用于辐射探测器的氧化物单晶的助熔剂生长

基本信息

批准号：
02650555
负责人：
OISHI Shuji
金额：
$ 0.7万
依托单位：
Shinshu University
依托单位国家：
日本
项目类别：
Grant-in-Aid for General Scientific Research (C)
财政年份：
1990
资助国家：
日本
起止时间：
1990 至 1991
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-02650555/
关键词：
Radiation detector Single crystal Oxide crystal Gadolinium silicate Flux growth Potassium fluoride Sodium Fluoride Gadolinium sodium silicate ケイ酸ガドリニウムナトリウム

项目摘要

Crystals of Gd_2SiO_5 have been known to play host to the cerium activator. The growth of Gd_2SiO_5 crystals from MF(M=Li, Na, and K)fluxes was attempted by a slow cooling method.1. Gadolinium silicate crystals were grown from KF flux. The well-formed Gd_2SiO_5 crystals of good quality were colorless and transparent. The density determined pycnometrically was 6.69<plus-minus>0.03 g/cm^3. The crystals up to 0.7 mm in size were grown from the mixture containing 5 mol% solute. The crystal size decreased with increasing the solute content. Potassium fluoride was the most suitable flux to grow Gd_2SiO_5 crystals. The large batches produced the large crystals of Gd_2SiO_5.2. Gadolinium silicate crystals up to 0.4 mm in size were grown from LiF flux. The small Gd_2SiO_5 crystals were well-formed. The large Gd_2SiO_5 crystals were not well-formed. Lithium fluoride flux also crystallized as a cubic form. The LiF crystals were up to 3.8 mm in size. Lithium fluoride was inferior to KF flux to grow Gd_2SiO_5 crystals.3. Gadolinium silicate crystals were not grown from NaF flux. Unwanted NaGdSiO_4 crystals up to 6.0 mm in size were grown from NaF flux. The well-formed NaGdSiO_4 crystals of good quality were colorless and transparent. The reaction of solute with flux afforded the unwanted compound. Sodium fluoride was not suitable flux to grow Gd_2SiO_5 Crystals.

众所周知，GD_2SIO_5的晶体可以播放到铜矿激活剂的宿主。通过缓慢冷却方法尝试了MF（M = Li，Na和K）通量的GD_2SIO_5晶体的生长。1。硅酸盐晶体是从KF通量生长的。形成良好的GD_2SIO_5质量高的晶体是无色和透明的。确定的高度测定的密度为6.69 <plus-minus> 0.03 g/cm^3。从含5 mol％溶质的混合物中生长了高达0.7毫米的晶体。晶体尺寸随着溶质含量的增加而降低。氟化钾是生长GD_2SIO_5晶体最合适的通量。大批次产生了GD_2SIO_5.2的大晶体。硅酸盐晶体尺寸高达0.4毫米，从LIF通量生长。小的GD_2SIO_5晶体形成良好。大的GD_2SIO_5晶体没有很好地形成。氟化锂通量也将作为立方形式结晶。 LIF晶体的尺寸高达3.8毫米。氟化锂低于KF通量，以生长GD_2SIO_5晶体3。硅酸盐晶体不是从NAF通量生长的。 NAF通量从NAF通量生长出多达6.0毫米的Nagdsio_4晶体。良好的Nagdsio_4质量良好的晶体是无色且透明的。溶质与通量的反应提供了不需要的化合物。氟化钠不适合生长GD_2SIO_5晶体。