Optical determination of the characteristics of a pulsed-gas jet

Abstract
A pulsed‐gas jet with interesting properties has been developed. A typical pressure obtained at the output of this pulsed‐gas jet is 25 Torr for a backing pressure of 150 Torr. At a repetition rate of 10 Hz, the background pressure stays below 1.5×104 Torr. Laser‐induced fluoresence measurements permit one to determine the pressure and the divergence of the gas jet accurately.

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