THERMOLUMINESCENT SPECTRUM CHANGES OF NATURAL QUARTZES DEPENDENT ON ANNEALING TREATMENT AND ALUMINUM-CONTENTS
THERMOLUMINESCENT SPECTRUM CHANGES OF NATURAL QUARTZES DEPENDENT ON ANNEALING TREATMENT AND ALUMINUM-CONTENTS
复制标题
天然石英热释光光谱随退火处理和铝含量的变化
DOI：
10.2116/analsci.7.supple_687
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发表时间：
1991
影响因子：
1.6
通讯作者：
M. Kojima
中科院分区：
文献类型：
--
作者：
T. Hashimoto;T. Sakai;N. Shirai;S. Sakaue;M. Kojima
利用IPDA(增强型光电二极管阵列)在线光谱分析系统对熔融和退火的天然石英石进行了光谱分析，测量了其三维热释光发光曲线。转变为熔融石英玻璃后，热释光性能发生了显著的变化，由红色变为蓝色。在1100℃热退火100h后的热释光性能也发现，即使在单个石英晶体的Z切切片内，也会发生明显不同的热释光变色，原来铝含量高于100ppm的蓝色-TL石英片在热退火后很容易转变为红色-TL色，这可能是与其他杂质协同作用的结果。据此，初步认为天然石英中Al-O-Al和/或Al-O-Si键的存在对高温下红色热释光的形成起着重要作用。
Both of fused and annealed natural quartzes were spectroscopically analyzed by using the IPDA (intensified photodiode array) on-line spectrometric system for measuring 3-dimensional thermoluminescence (TL) glow-curves. A remarkable change of TL property from red to blue occurred after the transformation to fused quartz glass. The TL properties were also searched after thermally annealing treatment for 100h at 1100°C Apparently different changes of TL-colorations were found to occur even within a Z-cut slice from a single quartz crystal; the original blue-TL quartz segments with higher Al-contents than about 100ppm are readily changeable into red-TL color after the thermal annealing, presumably in cooperation with other impurities. Accordingly, the existence of Al-O-A1 and/or Al-O-Si bond in natural quartz has been tentatively considered to play an important role of red-TL color at high temperature.