Effects of Anionic Impurities on the Light Scatter in KDP Crystal

doi:10.3724/SP.J.1077.2007.00268

Abstract

Abstract: potassium nitrate and potassium chloride were chosen as additives. KDP crystals were grown from the aqueous solution by the traditional temperature-lowering method and a “point seed” rapid method. Scatter particles are an important parameter to evaluate the properties of KDP crystals. Light scatter was detected with an ultramicroscopic method. The effects of SO₄^2- , NO₃^-and Cl^-ions on light scatter in the crystals were studied. Results show that SO₄^2- ions have a little effect on the light scatter of KDP crystals and the scatter particles are in a low density. With the increase of the dopant concentration, the density of scatter particles increases a little. For KDP crystals grown by the traditional temperature-lowering method, the existence of NO₃^- and Cl^- ions aggravates the light scatter in KDP crystals severely. The effect on the light scatter of KDP crystals grown by “point seed” rapid method is not evident.

Key words: additive, KDP crystal, ultramicroscopic method, light scatter

CLC Number:

O782

ZHANG Jian-Qin,WANG Sheng-Lai,FANG Chang-Shui,SUN Xun,GU Qing-Tian. Effects of Anionic Impurities on the Light Scatter in KDP Crystal[J]. Journal of Inorganic Materials, DOI: 10.3724/SP.J.1077.2007.00268.

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Effects of Anionic Impurities on the Light Scatter in KDP Crystal

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