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NRC to add new items to categorical exclusions list
The Nuclear Regulatory Commission has identified five categories of action to add to its list of categorical exclusions to reduce its documentation work under National Environmental Policy Act (NEPA) procedures.
These revisions are included in the final rule, “Categorical exclusions from environmental review,” which was published in the Federal Register on March 30. The final rule will become effective on April 29.
Raymond Brusasco, Thomas Dittrich, Robert Cook
Fusion Science and Technology | Volume 28 | Number 5 | December 1995 | Pages 1854-1858
Technical Paper | Inertial Confinement Fusion Targets | doi.org/10.13182/FST95-A30425
Articles are hosted by Taylor and Francis Online.
Inertial Confinement Fusion capsule designs incorporating beryllium are becoming attractive for use in implosion experiments designed for modest energy gain. This paper explores the feasibility of chemical vapor deposition of organo-beryllium precursors to form coating materials of interest as ablators and fuel containers. Experiments were performed in a surrogate chemical system utilizing tetramethylgermane as the organometallic precursor. Coatings with up to 3.4 g cm−3 germanium have been produced with germanium-to-carbon ratios of at least 1:1. These coatings compare favorably with polymer-like organo-germanium films previously reported in the literature and provide confidence that a similar deposition process with an organo-beryllium precursor would be successful.