skip to main content

SciTech ConnectSciTech Connect

Title: Generation and characterization of plasma channels in gas puff targets using soft X-ray radiography technique

We present our recent results of a formation and characterization of plasma channels in elongated krypton and xenon gas puff targets. The study of their formation and temporal expansion was carried out using a combination of a soft X-ray radiography (shadowgraphy) and pinhole camera imaging. Two high-energy short laser pulses were used to produce the channels. When a pumping laser pulse was shaped into a line focus, using cylindrical and spherical lenses, the channels were not produced because much smaller energy density was deposited in the gas puff target. However, when a point focus was obtained, using just a spherical lens, the plasma channels appeared. The channels were up to 9 mm in length, had a quite uniform density profile, and expanded in time with velocities of about 2 cm/μs.
Authors:
; ; ; ; ; ; ; ;  [1]
  1. Institute of Optoelectronics, Military University of Technology, ul. gen. S. Kaliskiego 2, 00-908 Warsaw (Poland)
Publication Date:
OSTI Identifier:
22299703
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 10; Other Information: (c) 2014 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CAMERAS; CYLINDRICAL CONFIGURATION; ENERGY DENSITY; KRYPTON; LASERS; LENGTH; LENSES; OPTICAL PUMPING; PLASMA; PULSES; SOFT X RADIATION; SPHERICAL CONFIGURATION; VELOCITY