TY  - JOUR
AU  - Gibbon, P.
AU  - Beg, F. N.
AU  - Wei, M. S.
AU  - Clark, E. L.
AU  - Evans, R. G.
AU  - Zepf, M.
TI  - Tree code simulations of proton acceleration from laser-irradiated wire targets
JO  - Physics of plasmas
VL  - 11
SN  - 1070-664X
CY  - [S.l.]
PB  - American Institute of Physics
M1  - PreJuSER-41941
SP  - 4032 - 4040
PY  - 2004
N1  - Record converted from VDB: 12.11.2012
AB  - Recent experiments using Terawatt lasers to accelerate protons deposited on thin wire targets are modeled with a new type of gridless plasma simulation code. In contrast to conventional mesh-based methods, this technique offers a unique capability in emulating the complex geometry and open-ended boundary conditions characteristic of contemporary experimental conditions. Comparisons of ion acceleration are made between the tree code and standard particle-in-cell simulations for a typical collisionless "hole boring" scenario in slab geometry. The utility of the gridless approach is emphasized by a series of simulations in "wire" geometry, in which electrons are permitted to circulate around the target at arbitrary distances from the focal region. The simulations reveal a number of features in common with recent experimental observations, including a disclike emission pattern of the MeV protons accelerated away from the wire. (C) 2004 American Institute of Physics.
KW  - J (WoSType)
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000222835000045
DO  - DOI:10.1063/1.1767096
UR  - https://juser.fz-juelich.de/record/41941
ER  -