Study of the effect of building TEA laser nitrogen system with multi-stage printed circuits on the value of laser energy and the duration of the outgoing pulse

In this paper different stage of pulse charging circuit (Blumlein circuit) was design. The laser system consist of different dimension printed board act as capacitor, fast spark gap switch and two parallel electrode made of Brass. TEA Nitrogen laser produce UV radiation with 337.1nm. the basic design contain two capacitor with one spark gap while, fourth design consist of four spark gap with five capacitor. As the number of stage rise the overvoltage required for breakdown increase so we can obtain gas discharge and excitation of Nitrogen molecules at lower voltage. The maximum energy obtained for OSBC was 1.02 mJ at 25 KV with laser pulse width around 8 ns. The last design with four stage blumlein circuit the energy raised to higher value more than for last design, the maximum energy was 19.01mJ at 25 kv with pulse width around 4.6 ns.