Characterization of pulsed capillary channel gas puff target using EUV shadowgraphy

Abstract Characterization measurements of a pulsed capillary channel gas puff target, developed for applications in laser-matter interaction experiments, are presented. The target is produced by pulsed injection of gas through a slit-shaped nozzle into a capillary channel and has been characterized by EUV radiography at 13.5 nm wavelength. Time dependent gas flow effects and flow shaping by capillary walls were visualized. Density measurements for argon were performed on axis for variable timing conditions and variable backing pressures. This target, due to its advantages, might be an interesting alternative for lower repetition rate and higher energy laser-matter interaction experiments.

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