Summary of experiments and analysis from the JAERI/USDOE collaborative program on fusion blanket neutronics

Conference · Sat Dec 31 04:00:00 EST 1994

OSTI ID:197083

Maekawa, H ^[1]; Abdou, M A ^[2]

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1. Japan Atomic Energy Research Inst., Ibaraki-ken (Japan)
2. Univ. of California, Los Angeles, CA (United States)

The JAERI/USDOE Collaborative program on Fusion Blanket Neutronics was started officially on Oct. 23, 1984 using the intense D-T neutron generator FNS and terminated in 1993. The objectives of the program are: (1) to validate neutronics methods, codes and nuclear data, (2) to provide estimates of uncertainties in satisfying tritium self-sufficiency in fusion reactors, (3) to provide integral data on nuclear heating, induced radioactivity and afterheat, and (4) to develop the neutronics technology for the design and testing of the next fusion devices. The program was divided into three phases depending on the ideas of the source and test blanket arrangements. Useful and reliable benchmark data have been accumulated through this collaboration experiments. They are tritium production rates (TPR) of Li-6, Li-7 and Li-natural, various reaction rates measured by activation foils, neutron spectra, gamma-ray spectra, gamma-ray heating rates and so on. Both Japan and US analyzed these benchmark experiments using latest and/or newly developed data and methods, e.g., GMVP, MCNP, JENDL-3, etc. A novel methodology has been developed to estimate design safety factors and the associated confidence levels. These safety factors are based on the prediction uncertainties of TPR as derived from the numerous calculational and experimental data accumulated during the program.

• OSTI ID: 197083
• Report Number(s): CONF-940664--
• Country of Publication: United States
• Language: English

Related Subjects

70 PLASMA PHYSICS AND FUSION TECHNOLOGY
BREEDING BLANKETS
BREEDING RATIO
COORDINATED RESEARCH PROGRAMS
DESIGN
LITHIUM OXIDES