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Title: Modeling of ns and ps laser-induced soft X-ray sources using nitrogen gas puff target

Gas puff laser plasma is studied as a source of water window radiation with 2.88 nm wavelength, corresponding to quantum transition 1s{sup 2} → 1s2p of helium-like nitrogen ions. Spatial development of plasma induced by Nd:YAG laser beam is simulated by 2D Radiation-Magneto-Hydro-Dynamic code Z*. The results for nitrogen gas layer (0.72 mm thickness, 1 bar pressure) and two different laser pulses (600 mJ/7 ns and 525 mJ/170 ps), corresponding to the experiments done in Laser Laboratory Gottingen are presented.
Authors:
 [1] ;  [2] ;  [3] ;  [3] ;  [4]
  1. Institute of Plasma Physics, Academy of Sciences, Za Slovankou 3, Prague 8 (Czech Republic)
  2. Faculty of Biomedical Engineering, CTU in Prague, Sitna 3105, Kladno 2 (Czech Republic)
  3. EPPRA sas, Villebon/Yvette (France)
  4. (Russian Federation)
Publication Date:
OSTI Identifier:
22304100
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 21; Journal Issue: 7; 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; HELIUM; LAYERS; NEODYMIUM LASERS; NITROGEN; PLASMA; PULSES; SIMULATION; SOFT X RADIATION; WAVELENGTHS