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Title: Energetic beams of negative and neutral hydrogen from intense laser plasma interaction

We present observations of intense beams of energetic negative hydrogen ions and fast neutral hydrogen atoms in intense (5 × 10{sup 19} W/cm{sup 2}) laser plasma interaction experiments, which were quantified in numerical calculations. Generation of negative ions and neutral atoms is ascribed to the processes of electron capture and loss by a laser accelerated positive ion in the collisions with a cloud of droplets. A comparison with a numerical model of charge exchange processes provides information on the cross section of the electron capture in the high energy domain.
Authors:
; ; ;  [1] ;  [2] ;  [2] ;  [3] ;  [1] ;  [4] ;  [5] ; ; ;  [6] ;  [7]
  1. Max Born Institute for Nonlinear Optics and Short Pulse Spectroscopy, 12489 Berlin (Germany)
  2. School of Mathematics and Physics, The Queen's University of Belfast, Belfast BT7 1NN (United Kingdom)
  3. (Czech Republic)
  4. (Russian Federation)
  5. WCU Department of Nanobio Materials and Electronics, Gwangju Institute of Science and Technology, Gwangju (Korea, Republic of)
  6. Centre Lasers Intenses et Applications, University Bordeaux, CEA, CNRS, 33405 Talence (France)
  7. ELI-Beamlines, Institute of Physics, Czech Academy of Science, 18221 Prague (Czech Republic)
Publication Date:
OSTI Identifier:
22217768
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 103; Journal Issue: 25; Other Information: (c) 2013 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; ACCELERATORS; ANIONS; ATOMS; BEAM-PLASMA SYSTEMS; BEAMS; CATIONS; CHARGE EXCHANGE; CROSS SECTIONS; DROPLETS; ELECTRON CAPTURE; HYDROGEN; HYDROGEN IONS; LASERS; NUMERICAL ANALYSIS; PLASMA GUNS