Nucleonic analysis of the ETF neutral-beam-injector-duct and vacuum-pumping-duct shields

Technical Report · Fri May 01 04:00:00 EDT 1981

DOI:https://doi.org/10.2172/6476073· OSTI ID:6476073

Urban, W T; Seed, T J; Dudziak, D J

A nucleonic analysis of the Engineering Test Facility neutral-beam-injector-duct and vacuum-pumping-duct shields has been made using a hybrid Monte Carlo/discrete-ordinates method. This method used Monte Carlo to determine internal and external boundary surface sources for subsequent discrete-ordinates calculations of the neutron and gamma-ray transport through the shields. Confidence was provided in both the hybrid method and the results obtained through a comparison with three-dimensional Monte Carlo results. Also determined in the analysis were the energy and angular distributions of neutrons and gamma rays entering the neutral-beam-injector duct from the toroidal plasma chamber, as well as exiting the duct into the neutral-beam-injector chamber. In addition, the energy and angular distributions of neutrons entering the vacuum-pumping chamber were determined.

• Research Organization: Los Alamos Scientific Lab., NM (USA)
• DOE Contract Number: W-7405-ENG-36
• OSTI ID: 6476073
• Report Number(s): LA-8830-MS; ON: DE81023986
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700205* -- Fusion Power Plant Technology-- Fuel
Heating
& Injection Systems
ANGULAR DISTRIBUTION
BEAM INJECTION
DISTRIBUTION
ELECTROMAGNETIC RADIATION
ENERGY SPECTRA
GAMMA RADIATION
IONIZING RADIATIONS
NEUTRAL ATOM BEAM INJECTION
NEUTRAL BEAM SOURCES
NEUTRAL-PARTICLE TRANSPORT
NEUTRON TRANSPORT
RADIATION TRANSPORT
RADIATIONS
SHIELDING
SPECTRA
THERMONUCLEAR REACTORS
TOKAMAK ETF
TOKAMAK TYPE REACTORS
VACUUM SYSTEMS