هانيه معصومي

In this thesis, the impact of the spatial position of laser pre-ionization on the dynamics of electrical discharge under atmospheric pressure conditions is investigated. A series of experiments were conducted using a spark gap consisting of two electrodes an‎d a pulsed Nd:YAG laser, where laser pre-ionization was initiated at different distances between the electrodes. The results indicate that the location of the pre-ionization significantly affects the dynamic behavior of the discharge, with notable differences observed in regions close to each electrode. These findings not only provide a deeper understan‎ding of the electrical discharge process with laser pre-ionization but also offer valuable insights for optimizing the design an‎d performance of laser-controlled electrical discharge systems. Furthermore, they enable the development of more precise control methods for this process in industrial, laboratory, an‎d research applications.

پيش يونش ليزري , تريگرهاي ليزري , موقعيت پيش يونش ليزري , تخليه الكتريكي كنترل شونده با ليزر , تاخير زماني

Laser pre-ionization , Laser triggering , Laser pre-ionization position , Laser-induced electric breakdown in air , Controlled electrical discharge , Delay time

Haniye Masoumi

Dr. Mohammad Hoseyn Mahdieh _ Dr. Mahdi Shayganmanesh