FABRICATION AND PROPERTIES OF OER COATED RESORCINOL-FORMALDEHYDE SHELLS FOR OMEGA EXPERIMENTS

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OAK-B135 New high gain designs for direct drive ignition on NIF require foam shells. Scaled down versions of these designs are needed for near term experiments on the OMEGA laser facility at the Laboratory Laser Energetics (LLE). These shells need to be about 1 mm in diameter and 50-100 {micro}m wall thickness and densities of 100-250 mg/cc. In addition, a full density permeation seal needs to be deposited for retention of the fill gas at room temperature or the ice at cryogenic temperatures. They have fabricated such shells using Resorcinol-formaldehyde (R/F) as the selected foam material due to its transparency ... continued below

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NIKROO,A; CZECHOWICZ,D; PAGUIO,R; GREENWOOD,A.L & TAKAGI,M June 1, 2003.

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OAK-B135 New high gain designs for direct drive ignition on NIF require foam shells. Scaled down versions of these designs are needed for near term experiments on the OMEGA laser facility at the Laboratory Laser Energetics (LLE). These shells need to be about 1 mm in diameter and 50-100 {micro}m wall thickness and densities of 100-250 mg/cc. In addition, a full density permeation seal needs to be deposited for retention of the fill gas at room temperature or the ice at cryogenic temperatures. They have fabricated such shells using Resorcinol-formaldehyde (R/F) as the selected foam material due to its transparency in the optical region. Extensive characterization of the wall uniformity of these shells has been performed. The foam shells have {approx} 5%-6% non-concentricities on the average. A full density permeation seal has been deposited on the R/F shells using two different techniques. In the first technique R/F shells are coated directly with plasma polymer to thicknesses of 3-4 {micro}m. In the second technique, R/F shells are coated with polyvinylphenol, using a chemical interfacial polymerization technique. Data on surface finish and gas retention for R/F shells coated by both methods are provided.

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9 pages

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INIS; OSTI as DE00823571

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  • 15th TARGET FABRICARTION SPECIALISTS MEETING, GLENEDEN BEACH, OR (US), 06/01/2003--06/05/2003; Other Information: TO BE PUBLISHED IN FUSION SCIENCE AND TECHNOLOGY

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  • Report No.: GA-A24451
  • Grant Number: AC03-01SF22260
  • Office of Scientific & Technical Information Report Number: 823571
  • Archival Resource Key: ark:/67531/metadc783525

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  • June 1, 2003

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  • Dec. 3, 2015, 9:30 a.m.

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  • Jan. 3, 2017, 12:27 p.m.

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NIKROO,A; CZECHOWICZ,D; PAGUIO,R; GREENWOOD,A.L & TAKAGI,M. FABRICATION AND PROPERTIES OF OER COATED RESORCINOL-FORMALDEHYDE SHELLS FOR OMEGA EXPERIMENTS, article, June 1, 2003; United States. (digital.library.unt.edu/ark:/67531/metadc783525/: accessed October 23, 2018), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.