Control of neutron albedo in toroidal fusion reactors

Technical Report · Fri Jul 01 04:00:00 EDT 1983

DOI:https://doi.org/10.2172/5761373· OSTI ID:5761373

Micklich, B J; Jassby, D L

The MCNP and ANISN codes have been used to obtain basic neutron albedo data for materials of interest for fusion applications. Simple physical models are presented which explain albedo dependence on pre- and post-reflection variables. The angular distribution of reflected neutrons. The energy spectra of reflected neutrons are presented, and it is shown that substantial variations in the total neutron current at the outboard wall of a torus can be effected by changing materials behind the inboard wall. Analyses show that a maximum of four isolated incident-current environments may be established simultaneously on the outboard side of a torus. With suitable inboard reflectors, global tritium breeding ratios significantly larger than unity can be produced in limited-coverage breeding blankets when the effects of outboard penetrations are included.

• Research Organization: Princeton Univ., NJ (USA). Plasma Physics Lab.
• DOE Contract Number: AC02-76CH03073
• OSTI ID: 5761373
• Report Number(s): PPPL-2008; ON: DE84000521
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700201* -- Fusion Power Plant Technology-- Blanket Engineering
ALBEDO
ANNULAR SPACE
BREEDING BLANKETS
COMPUTER CALCULATIONS
CONFIGURATION
ENERGY SPECTRA
NEUTRON TRANSPORT THEORY
REACTOR COMPONENTS
REFLECTION
SPACE
SPECTRA
THERMONUCLEAR REACTORS
TOROIDAL CONFIGURATION
TRANSPORT THEORY