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NRC looks to leverage previous approvals for large LWRs
During this time of resurging interest in nuclear power, many conversations have centered on one fundamental problem: Electricity is needed now, but nuclear projects (in recent decades) have taken many years to get permitted and built.
In the past few years, a bevy of new strategies have been pursued to fix this problem. Workforce programs that seek to laterally transition skilled people from other industries, plans to reuse the transmission infrastructure at shuttered coal sites, efforts to restart plants like Palisades or Duane Arnold, new reactor designs that build on the legacy of research done in the early days of atomic power—all of these plans share a common throughline: leveraging work already done instead of starting over from square one to get new plants designed and built.
Hideaki Iizumi et al.
Fusion Science and Technology | Volume 59 | Number 1 | January 2011 | Pages 289-291
doi.org/10.13182/FST11-A11638
Articles are hosted by Taylor and Francis Online.
We examined the difference of the heating characteristic by the injection condition of the ECRH from the measurement of the soft X-rays representing the electron temperature. The line integrated intensity of soft X-ray (IsxL) in X-mode ECRH (the best absorption) increased to 5.8 times of that without ECRH and 3.4 times in O-mode (the worst absorption). The MCP signal ratio of the different absorbers (Pe2/Pe1.5) increased from 0.43 before ECRH to 0.56 during ECRH of X-mode and from 0.47 to 0.52 in O-mode. It is confirmed the electron heating by ECRH qualitatively in both cases. However the ion stored energy decreased in O-mode ECRH. This results show that it is important to maximize the first pass RF absorption at the resonance layer on axis for the efficient electron heating and avoidance of the confinement degradation of plasma.
