Study of Electron-Beam Propagation through Preionized Dense Foam Plasmas

Journal Article · Fri May 20 00:00:00 EDT 2005 · Physical Review Letters

DOI:https://doi.org/10.1103/PhysRevLett.94.195001· OSTI ID:20696286

Jung, R; Osterholz, J; Loewenbrueck, K; Kiselev, S; Pretzler, G; Pukhov, A; Willi, O ^[1]; Kar, S; Borghesi, M ^[2]; Nazarov, W ^[3]; Karsch, S; Clarke, R; Neely, D ^[4]

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1. Heinrich-Heine-Universitaet Duesseldorf, D-40225 Duesseldorf (Germany)
2. Queen's University of Belfast, Belfast BT7 1NN (United Kingdom)
3. University of Dundee, Dundee DD1 4HN (United Kingdom)
4. Rutherford Appleton Laboratory, Chilton, Didcot, Oxon OX11 0QX (United Kingdom)

The transport of an intense electron-beam produced by the Vulcan petawatt laser through dense plasmas has been studied by imaging with high resolution the optical emission due to electron transit through the rear side of coated foam targets. It is observed that the MeV-electron beam undergoes strong filamentation and the filaments organize themselves in a ringlike structure. This behavior has been modeled using particle-in-cell simulations of the laser-plasma interaction as well as of the transport of the electron beam through the preionized plasma. In the simulations the filamentary structures are reproduced and attributed to the Weibel instability.

• OSTI ID: 20696286
• Journal Information: Physical Review Letters, Vol. 94, Issue 19; Other Information: DOI: 10.1103/PhysRevLett.94.195001; (c) 2005 The American Physical Society; Country of input: International Atomic Energy Agency (IAEA); ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
43 PARTICLE ACCELERATORS
CHARGED-PARTICLE TRANSPORT
COMPUTERIZED SIMULATION
ELECTRON BEAMS
FOAMS
LASERS
LIGHT TRANSMISSION
MEV RANGE
PETAWATT POWER RANGE
PLASMA
PLASMA DIAGNOSTICS
PLASMA INSTABILITY