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Fusion Science and Technology
Indiana Senate bill will have state consider SMRs
A new bill in the Indiana state Senate creates guidelines for state regulators to consider small modular reactors should utilities want to build them. Senate Bill 271 was sponsored by Sen. Eric Koch (R., Bedford), chair of the Senate Utilities Committee, and Sen. Blake Doriot (R., Goshen). Supporters of the bill said that SMRs could replace retiring coal plants and would supplement renewables.
The Indy Star reported on January 24 that the utilities committee passed the bill by a vote of eight to two and that it now heads to the full Senate.
D. G. Czechowicz, J. A. Dorman, J. C. Geronimo, C. J. Chen
Fusion Science and Technology | Volume 51 | Number 4 | May 2007 | Pages 631-637
Technical Paper | dx.doi.org/10.13182/FST51-631
Articles are hosted by Taylor and Francis Online.
We developed a production tungsten sputter coating process to uniformly deposit tungsten on 840 m outer diameter GDP shells using a bounce coating technique. We were able to control the tungsten-coating rate and therefore coating thickness based on gravimetric analysis. At the end of our work we could routinely produce uniform 0.5 m tungsten coatings on GDP shells with a Δ wall 0.04 m. Techniques were developed and applied to measure coating uniformity based on x-radiography and x-ray fluorescence data. Typical surface roughness values for bounce coated shells having a 0.5 m tungsten coating were 40 to 50 nm RMS. Stationary GDP shells were coated with 0.5 m tungsten and found to have surface roughness approaching 10 nm RMS, which was similar to the roughness of the underlying GDP mandrel surface. This result indicates that coating processes with less agitation such as tap or roll coating may produce much smoother tungsten coatings