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Title: Laser induced focusing for over-dense plasma beams

The capability of ion acceleration with high power, pulsed lasers has become an active field of research in the past years. In this context, the radiation pressure acceleration (RPA) mechanism has been the topic of numerous theoretical and experimental publications. Within that mechanism, a high power, pulsed laser beam hits a thin film target. In contrast to the target normal sheath acceleration, the entire film target is accelerated as a bulk by the radiation pressure of the laser. Simulations predict heavy ion beams with kinetic energy up to GeV, as well as solid body densities. However, there are several effects which limit the efficiency of the RPA: On the one hand, the Rayleigh-Taylor-instability limits the predicted density. On the other hand, conventional accelerator elements, such as magnetic focusing devices are too bulky to be installed right after the target. Therefore, we present a new beam transport method, suitable for RPA-like/over-dense plasma beams: laser induced focusing.
Authors:
 [1] ;  [1] ;  [2] ;  [3]
  1. Technische Universität Darmstadt, Accelerator Physics Group, Schlossgartenstr. 8, 64289 Darmstadt (Germany)
  2. (Germany)
  3. Technische Universität Darmstadt, Institute for Condensed Matter Physics, Schlossgartenstr. 7, 64289 Darmstadt (Germany)
Publication Date:
OSTI Identifier:
22493770
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 22; Journal Issue: 9; Other Information: (c) 2015 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; ACCELERATION; BEAM FOCUSING MAGNETS; BEAM TRANSPORT; COMPUTERIZED SIMULATION; EFFICIENCY; FOCUSING; GEV RANGE; HEAVY IONS; ION BEAMS; LASER TARGETS; PHOTON BEAMS; PLASMA; PULSES; RADIATION PRESSURE; RAYLEIGH-TAYLOR INSTABILITY; THIN FILMS