Multigroup representation of fusion product orbits in a plasma column

Journal Article · Sat Mar 01 00:00:00 EST 1980 · J. Comput. Phys.; (United States)

DOI:https://doi.org/10.1016/0021-9991(80)90093-5· OSTI ID:5467121

Willenberg, H J

A method is derived for describing the time-depending behavior of ..cap alpha.. particles produced in a radially nonuniform slender plasma column as a distribution function among the possible orbits. A multigroup numerical approximation is introduced to analyze the development of the distribution function and its moments. Results are presented of calculations of the time-dependent ..cap alpha..-particle energy spectrum and radial density, energy, and electron heating profiles in plasma columns with radii comparable to the ..cap alpha.. Larmor radius. This technique allows calculation of the ..cap alpha.. particle history at much more rapid rates than allowed by Monte Carlo technuques: The characteristic time scale is the ..cap alpha..-electron slowing-down time rather than the cyclotron period.

• Research Organization: Mathematical Sciences Northwest, Inc., P.O. Box 1887, Bellevue, Washington 98009
• OSTI ID: 5467121
• Journal Information: J. Comput. Phys.; (United States), Vol. 34:3
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
ALPHA PARTICLES
FUSION YIELD
PLASMA
MULTIGROUP THEORY
DISTRIBUTION FUNCTIONS
ORBITS
SOLENOIDS
TIME DEPENDENCE
CHARGED PARTICLES
ELECTRIC COILS
ELECTRICAL EQUIPMENT
EQUIPMENT
NEUTRON TRANSPORT THEORY
NUCLEAR REACTION YIELD
TRANSPORT THEORY
YIELDS
700101* - Fusion Energy- Plasma Research- Confinement
Heating
& Production