The electro-optic effect of KDP crystal is larger than that of ADP crystal, it can be used for devising a high speed light shutter. Some experimental data for the design of a KDP shutter affording the exposure of 10
-6_??_10
-7sec are given.
(1) The measured value of electro-optic constant γ63 is 10×10
-7 cm/kV at the wavelength of 546mμ.
(2) Conditions for the growth of KDP crystal plate are studied.
(3) Several transparent electrodes are examined. NESA glass electrode with evaporated gold grid, metal ring electrode and evaporated gold grid electrode are available for applying pulse voltage to the crystal.
(4) Breakdown voltage of the crystal for different thicknesses is measured by using high voltage pulses.
(5) Main pulser for the shutter is designed.
(6) Pattern indicating the pinch effect of discharge column is shown on photograph taken by using the shutter.
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