中文摘要：

Ca^2＋是KDP原料中一种常见的杂质离子，通过传统降温法和“点籽晶”快速生长法研究了Ca^2＋离子对KDP晶体生长习性及性能的影响、实验表明，Ca^2＋低浓度掺杂时对溶液的稳定性及生长过程没有明显的影响；高浓度时溶液稳定性有所降低，经常出现杂品；快速生长时，晶体柱面易出现包藏，晶体的紫外透过呈下降趋势，晶体中散射颗粒密度随掺杂浓度的增加而增大、

英文摘要：

Ca^2＋ ion is a kind of common impurity in the growth process of KDP crystal. Effect of Ca^2＋ ions on the growth habit and optical properties of KDP crystals were investigated. KDP crystals were grown from a solution containing certain quantity of calcium chloride by the traditional temperaturelowering method and by the ＂ point seed ＂ technique, respectively. The results show that there is no obvious effect on the stability of KDP growth solution and the process of KDP growth when the Ca^2＋ concentration in the solution is very small. When the Ca^2＋ concentration is high in the solution, the stability of KDP growth solution is lowered, and inclusions in the crystal often occur on the prismatic faces of KDP crystals grown by a ＂ point seed ＂ technique. The ultraviolet transmittance is descended and the density of scattering particles in the crystal is increased with the Ca^2＋ concentration in the solution.