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The objectives of MSTD are: promote the advancement of materials science in Nuclear Science Technology; support the multidisciplines which constitute it; encourage research by providing a forum for the presentation, exchange, and documentation of relevant information; promote the interaction and communication among its members; and recognize and reward its members for significant contributions to the field of materials science in nuclear technology.
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Fusion Science and Technology
Fukiushima Daiichi: 10 years on
The Fukushima Daiichi site before the accident. All images are provided courtesy of TEPCO unless noted otherwise.
It was a rather normal day back on March 11, 2011, at the Fukushima Daiichi nuclear plant before 2:45 p.m. That was the time when the Great Tohoku Earthquake struck, followed by a massive tsunami that caused three reactor meltdowns and forever changed the nuclear power industry in Japan and worldwide. Now, 10 years later, much has been learned and done to improve nuclear safety, and despite many challenges, significant progress is being made to decontaminate and defuel the extensively damaged Fukushima Daiichi reactor site. This is a summary of what happened, progress to date, current situation, and the outlook for the future there.
Fusion Science and Technology | Volume 52 | Number 2 | August 2007 | Pages 154-160
Technical Paper | Electron Cyclotron Wave Physics, Technology, and Applications - Part 1 | dx.doi.org/10.13182/FST07-A1494
Articles are hosted by Taylor and Francis Online.
The theoretical framework of quasi-optical propagation power absorption and driven current of a Gaussian beam of electron cyclotron (EC) waves in a general tokamak equilibrium implemented in the code GRAY is presented. Within the framework of the complex eikonal approach, the propagation of a general astigmatic Gaussian beam is described in terms of a set of coupled rays, allowing for diffraction effects. The computation of the EC wave absorption and current drive is performed for each ray of the beam, by means of a relativistic dispersion relation for EC waves and of a neoclassical response function for the current. The code has been designed and tested for calculations of propagation, power absorption, and current drive of realistic EC beams in ITER.