Influence of the inherent pre-pulse of Blumlein transmission line on soft X-ray laser pumped by capillary discharge

This paper studied the Ne-like argon 46.9nm laser pumped by capillary discharge through experiments. In the experiment, adverse influence of the inherent pre-pulse generated by Blumlein transmission line of the capillary discharge setup on arising and stable output of soft X-ray laser was observed. In order to remove this influence, the method of installing a switch and a capacitor for insulating the inherent pre-discharge pulse is proposed. The experimental results show that the method can insulate the inherent pre-discharge pulse efficiently and the discharge setup reaches stabilization of operation. On the basis of this, the laser spike of Ne-like argon 46.9nm has been observed and improved.