Finite material temperature model for ion energy deposition in ion-driven inertial confinement fusion targets
We have developed a model for use in ion-driven inertial confinement fusion (ICF) target design to describe the deposition of energy by an arbitrary ion traversing a material of arbitrary composition, density, and temperature. This model particularly emphasizes the deposition physics of light ions having specific energies of 3 MeV/amu or less. However, the model is also applicable to heavy ion fusion problems where there are specific energies in excess of 10 MeV/amu. We have found that an accurate description of the cold material stopping power must include both shell corrections to the Bethe theory as well as the alternative LSS (Linhard-Scharff-Schiott) model at low energies. We have incorporated finite temperature effects by scaling the relevant bound electron parameters with the degree of material ionization as well as by including the free-electron stopping power. We discuss both the phenomenon of range shortening and range relengthening in heated material.
- Research Organization:
- Target Interaction Theory Division: 4247, Sandia National Laboratories, Albuquerque, New Mexico 87185
- OSTI ID:
- 5924735
- Journal Information:
- J. Appl. Phys.; (United States), Journal Name: J. Appl. Phys.; (United States) Vol. 52:11; ISSN JAPIA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
700101* -- Fusion Energy-- Plasma Research-- Confinement
Heating
& Production
ABSORPTION
CHARGED PARTICLES
CONFINEMENT
DATA
DENSITY
ELECTRONS
ELEMENTARY PARTICLES
ENERGY ABSORPTION
FERMIONS
HEAVY IONS
INERTIAL CONFINEMENT
INFORMATION
ION BEAM TARGETS
ION TEMPERATURE
IONS
LEPTONS
LIGHT IONS
MATHEMATICAL MODELS
NUCLEAR MODELS
NUMERICAL DATA
PARAMETRIC ANALYSIS
PHYSICAL PROPERTIES
PLASMA CONFINEMENT
QUANTITY RATIO
SCALING LAWS
SHELL MODELS
STOPPING POWER
TARGETS
TEMPERATURE DEPENDENCE
TEMPERATURE EFFECTS
THEORETICAL DATA