Published March 6, 2009
| Version v1
Journal article
Laser-Driven Shock Acceleration of Ion Beams from Spherical Mass-Limited Targets
Creators
- 1. Department fuer Physik, Ludwig-Maximilians-Universitaet Muenchen, Garching (Germany)
- 2. Max-Planck-Institut fuer Quantenoptik, Garching (Germany)
- 3. Department of Physics and Astronomy, Queen's University Belfast, Belfast BT7 1NN (United Kingdom)
- 4. Moscow Physics Engineering Institute, Kashirskoe shosse 31, Moscow (Russian Federation)
- 5. ETSI Aeronauticos, Universidad Politecnica de Madrid (Spain)
- 6. Blackett Laboratory, Imperial College, London SW7 2AZ (United Kingdom)
Description
We report on experimental studies of ion acceleration from spherical targets of diameter 15 μm irradiated by ultraintense (1x1020 W/cm2) pulses from a 20-TW Ti:sapphire laser system. A highly directed proton beam with plateau-shaped spectrum extending to energies up to 8 MeV is observed in the laser propagation direction. This beam arises from acceleration in a converging shock launched by the laser, which is confirmed by 3-dimensional particle-in-cell simulations. The temporal evolution of the shock-front curvature shows excellent agreement with a two-dimensional radiation pressure model
Additional details
Identifiers
Publishing Information
- Journal Title
- Physical Review Letters
- Journal Volume
- 102
- Journal Issue
- 9
- Journal Page Range
- p. 095002-095002.4
- ISSN
- 0031-9007
- CODEN
- PRLTAO
INIS
- Country of Publication
- United States
- Country of Input or Organization
- International Atomic Energy Agency (IAEA)
- INIS RN
- 40054468
- Subject category
- S71: CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; S43: PARTICLE ACCELERATORS; S70: PLASMA PHYSICS AND FUSION TECHNOLOGY;
- Descriptors DEI
- ACCELERATION; EVOLUTION; ION BEAMS; LASERS; MASS; MEV RANGE 01-10; PROTON BEAMS; PULSES; RADIATION PRESSURE; SAPPHIRE; SIMULATION; THREE-DIMENSIONAL CALCULATIONS; TWO-DIMENSIONAL CALCULATIONS
- Descriptors DEC
- BEAMS; CORUNDUM; ENERGY RANGE; MEV RANGE; MINERALS; NUCLEON BEAMS; OXIDE MINERALS; PARTICLE BEAMS
Optional Information
- Notes
- (c) 2009 The American Physical Society