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

Abstract

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.

Authors:
; ; ; ;
Publication Date:
Research Org.:
GENERAL ATOMICS (US)
Sponsoring Org.:
(US)
OSTI Identifier:
823571
Report Number(s):
GA-A24451
TRN: US0401736
DOE Contract Number:  
AC03-01SF22260
Resource Type:
Conference
Resource Relation:
Conference: 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; PBD: 1 Jun 2003
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; CRYOGENICS; FABRICATION; POLYMERIZATION; POLYMERS; TARGETS; US NATIONAL IGNITION FACILITY; OMEGA FACILITY

Citation Formats

NIKROO, A, CZECHOWICZ, D, PAGUIO, R, GREENWOOD, A L, and TAKAGI, M. FABRICATION AND PROPERTIES OF OER COATED RESORCINOL-FORMALDEHYDE SHELLS FOR OMEGA EXPERIMENTS. United States: N. p., 2003. Web.
NIKROO, A, CZECHOWICZ, D, PAGUIO, R, GREENWOOD, A L, & TAKAGI, M. FABRICATION AND PROPERTIES OF OER COATED RESORCINOL-FORMALDEHYDE SHELLS FOR OMEGA EXPERIMENTS. United States.
NIKROO, A, CZECHOWICZ, D, PAGUIO, R, GREENWOOD, A L, and TAKAGI, M. Sun . "FABRICATION AND PROPERTIES OF OER COATED RESORCINOL-FORMALDEHYDE SHELLS FOR OMEGA EXPERIMENTS". United States. https://www.osti.gov/servlets/purl/823571.
@article{osti_823571,
title = {FABRICATION AND PROPERTIES OF OER COATED RESORCINOL-FORMALDEHYDE SHELLS FOR OMEGA EXPERIMENTS},
author = {NIKROO, A and CZECHOWICZ, D and PAGUIO, R and GREENWOOD, A L and TAKAGI, M},
abstractNote = {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.},
doi = {},
url = {https://www.osti.gov/biblio/823571}, journal = {},
number = ,
volume = ,
place = {United States},
year = {2003},
month = {6}
}

Conference:
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