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Title: Laser-driven 1 GeV carbon ions from preheated diamond targets in the break-out afterburner regime

Experimental data are presented for laser-driven carbon C{sup 6+} ion-acceleration, verifying 2D-PIC studies for multi-species targets in the Break-Out Afterburner regime. With Trident's ultra-high contrast at relativistic intensities of 5 × 10{sup 20} W/cm{sup 2} and nm-scale diamond targets, acceleration of carbon ions has been optimized by using target laser-preheating for removal of surface proton contaminants. Using a high-resolution wide angle spectrometer, carbon C{sup 6+} ion energies exceeding 1 GeV or 83 MeV/amu have been measured, which is a 40% increase in maximum ion energy over uncleaned targets. These results are consistent with kinetic plasma modeling and analytic theory.
Authors:
 [1] ;  [2] ;  [2] ; ; ; ; ; ; ; ; ; ; ;  [1] ;  [3] ; ;  [4] ;  [2]
  1. Los Alamos National Laboratory, Los Alamos, New Mexico 87545 (United States)
  2. (Germany)
  3. Queen’s University Belfast, Belfast BT7 1NN (United Kingdom)
  4. Department für Physik, Ludwig-Maximilians-Universität München, D-85748 Garching (Germany)
Publication Date:
OSTI Identifier:
22220661
Resource Type:
Journal Article
Resource Relation:
Journal Name: Physics of Plasmas; Journal Volume: 20; Journal Issue: 8; Other Information: (c) 2013 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; AFTERBURNERS; CARBON IONS; DIAMONDS; GEV RANGE 01-10; HEAT TREATMENTS; LASERS; MEV RANGE 10-100; PLASMA DIAGNOSTICS; PLASMA HEATING; PLASMA SIMULATION; PROTONS; RELATIVISTIC PLASMA; RELATIVISTIC RANGE; RESOLUTION; SPECTROMETERS