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本文比较了阴极射线发光的三种激发方式,即连续、脉冲和光栅扫描激发。讨论了在每种激发方式中,为了正确地分析得到的数据所需要的适当的激发密度。研究了缩小的光栅的影响并提出了一个新概念——多次激发(Multiexcitation)。业已表明:在可拆卸系统的小荧光屏上和满尺寸电视显象管(屏)上所作的亮度测量,两者之间缺乏相关性是由于多次激发的缘故。而且,多次激发可以掩盖某些亚线性磷光体,例如硫化物,在高激发密度下的饱和特性,使他们趋于线性。为了避免多次激发,建议利用脉冲或单线扫描光栅对磷光体作评价性测量。
This article compares the three excitation modes of cathodoluminescence, namely continuous, pulsed, and raster-scan excitation. The appropriate excitation densities required for the correct analysis of the data obtained in each excitation mode are discussed. Studied the effect of the reduced grating and proposed a new concept - Multiexcitation. It has been shown that the lack of correlation between the brightness measurements made on small fluorescent screens and full-size television picture tubes (panels) of a detachable system is due to multiple excitation. Moreover, multiple shots can mask some of the sub-linear phosphors, such as sulfides, at saturation properties at high excitation densities, rendering them linear. In order to avoid multiple shots, it is recommended to evaluate the phosphor with a pulse or single-line scanning grating.