arXiv:1209.0648·v2·Nuclear Theory
Fukushima plutonium effect and blow-up regimes in neutron-multiplying media
V.D. Rusov · V.A. Tarasov · V.M. Vaschenko · E.P. Linnik · T.N. Zelentsova · M.E. Beglaryan · S.A. Chernegenko · S.I. Kosenko · P.A. Molchinikolov · V.P. Smolyar · E.V. Grechan
Abstract
It is shown that the capture and fission cross-sections of 238U and 239Pu increase with temperature within 1000-3000 K range, in contrast to those of 235U, that under certain conditions may lead to the so-called blow-up modes, stimulating the anomalous neutron flux and nuclear fuel temperature growth. Some features of the blow-up regimes in neutron-multiplying media are discussed.
Comments: 15 pages, 8 figures. (v2: numerous corrections and style improvements). arXiv admin note: substantial text overlap with arXiv:1207.3695