Irradiation creep by the climb-controlled glide mechanism in pulsed fusion reactors
作者:
H. Gurol,
N.M. Ghoniem,
期刊:
Radiation Effects
(Taylor Available online 1980)
卷期:
Volume 52,
issue 1-2
页码: 103-125
ISSN:0033-7579
年代: 1980
DOI:10.1080/00337578008210023
出版商: Taylor & Francis Group
数据来源: Taylor
摘要:
The effects of irradiation pulsing on the enhanced climb-glide creep strain are analyzed. A variety of pulsed systems have been studied by adytically modeling the time-dependence of the bulk point-defect concentrations given by the rate theory. Equations for the creep strain are derived for Tokamak-type fusion reactors, pulsed accelerators and inertial confinement fusion reactors, including the effects of mutual point-defect recombination. The creep in pulsed fusion reactors is compared with the creep in systems subject to steady irradiation of equal total dose. It is found that point-defect concentration cycling (due to radiation pulsing) results in enhancement of the irradiation creep strain. In particular, a very large temperature-dependent enhancement is found for inertial confinement fusion reactors. The theoretical results are also compared with experimental data on deuteron irradiated nickel. Good agreement is obtained with the parameters used.
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