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Fusion Science and Technology
Ohio Senate votes to repeal nuclear plant subsidies
After months of unsuccessful efforts by Ohio lawmakers to contend with the fallout from H.B. 6—the now-infamous nuclear subsidies bill signed into law in 2019—the state’s senate on March 3 passed a measure, S.B. 44, to repeal those subsidies. The vote was 32–0.
For those who may need reminding, federal prosecutors on July 21, 2020, arrested Larry Householder, then speaker of the Ohio House, and four lobbyists and political consultants for their involvement in an alleged $61 million corruption and racketeering scheme aimed at guaranteeing passage of H.B. 6, whose subsidies had kept Ohio’s Davis-Besse and Perry nuclear power plants from premature closure.
H.B. 6 established a seven-year program to charge the state’s electricity consumers fees to support payments of about $150 million annually to the plants’ operator, Energy Harbor Corporation, then known as FirstEnergy Solutions (FES). FES had announced in March 2018 that it would be forced to close Davis-Besse and Perry without some form of support from the state. (The payments to Energy Harbor were blocked last December by an Ohio Supreme Court injunction, which complemented an earlier lower court ruling.)
L. L. Snead, K. J. Leonard, G. E. Jellison, Jr., Mohamed Sawan, Tom Lehecka
Fusion Science and Technology | Volume 56 | Number 2 | August 2009 | Pages 1069-1077
Fusion Materials | Eighteenth Topical Meeting on the Technology of Fusion Energy (Part 2) | dx.doi.org/10.13182/FST09-26
Articles are hosted by Taylor and Francis Online.
Dielectric mirrors have been considered for both magnetic and inertial confinement systems. Such mirrors are comprised of multiple thin bi-layers of high and low refractive index materials deposited onto a substrate. Three dielectric mirror types were fabricated to reflect at the KrF laser wavelength of 248 nm and these mirrors irradiated at ∼ 175 °C in the dose range of 0.001 to 0.1 x 1025 n/m2 (E>0.1 MeV.) Mirror reflectivity was measured on as-irradiated and on 300 and 400 °C vacuum annealed mirrors. The best performing mirror overall, the alumina/silica multilayer mirror, did not appear to have degraded reflectivity in the as-irradiated or the as-irradiated and annealed conditions. For the highest dose, annealed condition degradation was observed in the hafnia silica mirror. Additionally, laser induced damage threshold was measured on the best performing mirror (the alumina/silica mirror) with a resulting threshold of > 1 J/cm2, For this mirror, the damage threshold was not discernibly degraded by neutron irradiation. These findings are somewhat in contradiction to earlier work, which suggested poor performance of dielectric mirrors at an order of magnitude lower neutron dose. In conclusion, the current findings, while preliminary, suggest the possibility for using dielectric mirrors to much higher dose levels.