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Godzilla is helping ITER prepare for tokamak assembly
ITER employees stand by Godzilla, the most powerful commercially available industrial robot available. (Photo: ITER)
Many people are familiar with Godzilla as a giant reptilian monster that emerged from the sea off the coast of Japan, the product of radioactive contamination. These days, there is a new Godzilla, but it has a positive—and entirely fact-based—association with nuclear energy. This one has emerged inside the Tokamak Assembly Preparation Building of ITER in southern France.
F. H. Fröhner
Nuclear Science and Engineering | Volume 111 | Number 4 | August 1992 | Pages 404-414
Technical Paper | doi.org/10.13182/NSE92-A15487
Articles are hosted by Taylor and Francis Online.
An evaluation of the 238U neutron cross sections in the unresolved resonance region that was adopted for the evaluated nuclear data files JEF-2 (up to 200 keV) and ENDF/B-VI (up to 149 keV) has been checked against recent capture cross-section measurements and against thick-sample transmission data and capture self-indication ratios. Effects of the unresolved resonance structure on self-shielding and multiple scattering were treated by Monte Carlo techniques based on resonance statistics and average resonance parameters. It was found that the average cross sections and average resonance parameters given in the new evaluation permit very satisfactory reproduction of all the test data. Indications are that the average total and capture cross sections including self-shielding are now known below 200 keV with accuracies close to those requested in nuclear technology.
