Comparison of computed reaction rates using different methods and data for the STARFIRE and TMHR benchmark blankets

Technical Report · Tue Dec 01 04:00:00 EST 1981

DOI:https://doi.org/10.2172/5543203· OSTI ID:5543203

Scott, A. J.; Takata, M. L.

RAFFLE Monte Carlo calculations using ENDF/B V5 data have been performed for the TMHR suppressed fission benchmark blanket and the STARFIRE Reference Design blanket. One-dimensional cylindrical geometry was employed. ANISN S/sub N/ calculations were also done for both blankets using the DLC37F, FLUNG, and MACKLIB IV data sets. Reaction rates from RAFFLE and ANISN are compared with each other and with results obtained by the blanket designers (ANL, TRW, GA). The purposes of this study are to: (1) partially validate the new RAFFLE libraries for fusion neutronics and, (2) lend confidence to the results of previous ANISN calculations that were done to investigate the feasibility of fusion blanket testing in the Engineering Test Reactor. For both blankets, the tritium breeding ratio (TBR) predicted by RAFFLE and ANISN agree within 3%. For TMHR, our TBR results lie in between those obtained by TRW and GA, which disagree by 10 to 15%. For STARFIRE, our TBR results are 7 to 10% lower than ANL's values. The reason for the large discrepancies is unknown. However, it is concluded that modeling errors are unlikely so that data sources and processing differences used to generate cross section libraries are implied. Additional investigation is needed to resolve the differences.

• Research Organization: EG and G Idaho, Inc., Idaho Falls (USA)
• DOE Contract Number: AC07-76ID01570
• OSTI ID: 5543203
• Report Number(s): EGG-PHYS-5654; ON: DE82010045
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
700201* -- Fusion Power Plant Technology-- Blanket Engineering
BETA DECAY RADIOISOTOPES
BETA-MINUS DECAY RADIOISOTOPES
BREEDING BLANKETS
BREEDING RATIO
CONVERSION RATIO
CROSS SECTIONS
HYBRID REACTORS
HYDROGEN ISOTOPES
ISOTOPES
LIGHT NUCLEI
MAGNETIC MIRROR TYPE REACTORS
MONTE CARLO METHOD
NEUTRON TRANSPORT THEORY
NUCLEI
ODD-EVEN NUCLEI
ONE-DIMENSIONAL CALCULATIONS
RADIOISOTOPES
REACTOR COMPONENTS
STARFIRE TOKAMAK
THERMONUCLEAR REACTORS
TMR REACTORS
TOKAMAK TYPE REACTORS
TRANSPORT THEORY
TRITIUM
YEARS LIVING RADIOISOTOPES