Two-dimensional relativistic Fokker-Planck model for core plasma heating in fast ignition targets

Journal Article · Wed Feb 15 00:00:00 EST 2006 · Physics of Plasmas

DOI:https://doi.org/10.1063/1.2168147· OSTI ID:20782511

Yokota, T; Nakao, Y; Johzaki, T; Mima, K ^[1]

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1. Department of Applied Quantum Physics and Nuclear Engineering, Kyushu University, Hakozaki, Fukuoka 812-8581 (Japan)

One of the key issues in the fast ignition scheme is a clarification of the imploded dense core heating by laser-produced fast electrons. To investigate the core heating process, a two-dimensional relativistic Fokker-Planck code 'RFP-2D' for fast electron behavior in dense core plasmas has been developed. Energy loss of fast electrons due to Coulomb interactions is treated through not only usual short-range binary collisions but also long-range binary collisions, including a collective shielding effect. After describing the physics model, an examination is made of the energy deposition of fast electrons injected into a highly compressed D-T cylindrical plasma. The relative importance of the long-range Coulomb interaction and the influence of a self-generated electromagnetic field on the energy deposition profile are demonstrated.

• OSTI ID: 20782511
• Journal Information: Physics of Plasmas, Vol. 13, Issue 2; Other Information: DOI: 10.1063/1.2168147; (c) 2006 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 1070-664X
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
CHARGED-PARTICLE TRANSPORT
CYLINDRICAL CONFIGURATION
D-T OPERATION
DEUTERIUM
ELECTROMAGNETIC FIELDS
ELECTRON COLLISIONS
ELECTRONS
FOKKER-PLANCK EQUATION
ION COLLISIONS
PLASMA HEATING
PLASMA SIMULATION
R CODES
RELATIVISTIC PLASMA
RELATIVISTIC RANGE
THERMONUCLEAR IGNITION
TRITIUM
TWO-DIMENSIONAL CALCULATIONS