Analysis of alpha particle behavior in EBT reactor

Conference · Thu Sep 01 04:00:00 EDT 1983 · Nucl. Technol./Fusion; (United States)

OSTI ID:6118857

Fenstermacher, M E; Uckan, N A

A formalism has been developed in terms of a drift kinetic equation with a Fokker-Planck collision operator to calculate alpha particle loss and energy deposition rate coefficients for one position in space and for steady-state operating conditions in an ELMO Bumpy Torus (EBT) reactor. Pitch angle and energy scattering terms were retained in the collision term so that the analysis provides information on alpha particle behavior due to pitch angle scattering into loss regions in velocity space and information on alpha energy deposition during slowing down in the device. A square well magnetic field shape is assumed and the resulting particle loss rates and energy deposition rates are calculated. For typical EBT reactor parameters, results show that while 80-90% of the alpha particles are scattered into a pitch angle loss region and lost from the device, more than 70% of the alpha particle energy is deposited in the core plasma and about 1-2% goes to alphas retained in the plasma as ash. Parametric studies are performed, and the sensitivity to plasma potential, the pitch angle, the width of loss regions, and computational procedures are analyzed.

• Research Organization: Univ. of Michigan, Ann Arbor, MI 48109
• OSTI ID: 6118857
• Report Number(s): CONF-830406-
• Conference Information: Journal Name: Nucl. Technol./Fusion; (United States) Journal Volume: 4:2
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700105* -- Fusion Energy-- Plasma Research-- Plasma Kinetics-Theoretical-- (-1987)
ABSORPTION
ALPHA PARTICLES
BUMPY TORI
CHARGED PARTICLES
COMPUTER CALCULATIONS
CONFIGURATION
DIFFERENTIAL EQUATIONS
ELMO BUMPY TORUS
ELMO DEVICES
ENERGY ABSORPTION
EQUATIONS
FOKKER-PLANCK EQUATION
KINETIC EQUATIONS
MAGNETIC FIELD CONFIGURATIONS
MAGNETIC MIRRORS
OPEN PLASMA DEVICES
PARAMETRIC ANALYSIS
PARTIAL DIFFERENTIAL EQUATIONS
PARTICLE LOSSES
PLASMA DIAGNOSTICS
RECTANGULAR CONFIGURATION
SQUARE CONFIGURATION
THERMONUCLEAR DEVICES