Formation of an Elongated Plasma Column From a Gas Puff Target Irradiated With a Laser Beam Focused Using an Axicon

Elongated plasma columns can be formed by irradiation a gas puff target with a laser beam focused in line using an axicon. The plasma columns created from high-density gas puff targets based on a double-stream approach have been studied. The results of investigations with the use of optical and X-ray imaging and X-ray spectroscopy are presented.