High Voltage Flash Photolysis Lamp

Abstract

A condensed discharge flash photolysis light source is described. A short flash duration time (``1/e‐time'' 3 μsec at 1450 J, 10 μsec at 7200 J) was obtained by the use of high voltage capacitors (40 kV), and by dissipating the capacitor energy in four flash tubes (length, 20 cm each) connected in series for easy triggering. The characteristics of flash tubes at high discharge voltages are studied, in particular with respect to the ``afterglow'' effect.