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Title: FABRICATION AND CHARACTERIZATION OF FAST IGNITION TARGETS

Abstract

OAK-B135 Fast ignition is a novel scheme for achieving laser fusion. A class of these targets involves cone mounted CH shells. The authors have been fabricating such targets with shells with a wide variety of diameters and wall thicknesses for several years at General Atomics. In addition, recently such shells were needed for implosion experiments at Laboratory for Laser Energetics (LLE) that for the first time were required to be gas retentive. Fabrication of these targets requires producing appropriate cones and shells, assembling the targets, and characterization of the assembled targets. The cones are produced using micromachining and plating techniques. The shells are fabricated using the depolymerizable mandrel technique followed by micromachining a hole for the cone. The cone and the shell then need to be assembled properly for gas retention and precisely in order to position the cone tip at the desired position within the shell. Both are critical for the fast ignition experiments. The presence of the cone in the shell creates new challenges in characterization of the assembled targets. Finally, for targets requiring a gas fill, the cone-shell assembly needs to be tested for gas retention and proper strength at the glue joint. This paper presents anmore » overview of the developmental efforts and technical issues addressed during the fabrication of fast ignition targets.« less

Authors:
; ; ; ; ; ; ; ; ; ; ;
Publication Date:
Research Org.:
General Atomics, San Diego, CA (United States)
Sponsoring Org.:
(US)
OSTI Identifier:
823601
Report Number(s):
GA-A24443
TRN: US0401774
DOE Contract Number:  
FC03-92SF19460
Resource Type:
Conference
Resource Relation:
Conference: 15th TARGET FABRICATION 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; FABRICATION; PLATING; TARGETS; LASER FUSION REACTORS; SHELLS; CONES

Citation Formats

HILL, D W, CASTILLO, E, CHEN, K C, GRANT, S E, GREENWOOD, A L, KAAE, J L, NIKROO, A, PAGUIO, S P, SHEARER, C, SMITH,JR.,J.N, STEPHENS, R B, STEINMAN, D A, and WALL, J. FABRICATION AND CHARACTERIZATION OF FAST IGNITION TARGETS. United States: N. p., 2003. Web.
HILL, D W, CASTILLO, E, CHEN, K C, GRANT, S E, GREENWOOD, A L, KAAE, J L, NIKROO, A, PAGUIO, S P, SHEARER, C, SMITH,JR.,J.N, STEPHENS, R B, STEINMAN, D A, & WALL, J. FABRICATION AND CHARACTERIZATION OF FAST IGNITION TARGETS. United States.
HILL, D W, CASTILLO, E, CHEN, K C, GRANT, S E, GREENWOOD, A L, KAAE, J L, NIKROO, A, PAGUIO, S P, SHEARER, C, SMITH,JR.,J.N, STEPHENS, R B, STEINMAN, D A, and WALL, J. 2003. "FABRICATION AND CHARACTERIZATION OF FAST IGNITION TARGETS". United States. https://www.osti.gov/servlets/purl/823601.
@article{osti_823601,
title = {FABRICATION AND CHARACTERIZATION OF FAST IGNITION TARGETS},
author = {HILL, D W and CASTILLO, E and CHEN, K C and GRANT, S E and GREENWOOD, A L and KAAE, J L and NIKROO, A and PAGUIO, S P and SHEARER, C and SMITH,JR.,J.N and STEPHENS, R B and STEINMAN, D A and WALL, J},
abstractNote = {OAK-B135 Fast ignition is a novel scheme for achieving laser fusion. A class of these targets involves cone mounted CH shells. The authors have been fabricating such targets with shells with a wide variety of diameters and wall thicknesses for several years at General Atomics. In addition, recently such shells were needed for implosion experiments at Laboratory for Laser Energetics (LLE) that for the first time were required to be gas retentive. Fabrication of these targets requires producing appropriate cones and shells, assembling the targets, and characterization of the assembled targets. The cones are produced using micromachining and plating techniques. The shells are fabricated using the depolymerizable mandrel technique followed by micromachining a hole for the cone. The cone and the shell then need to be assembled properly for gas retention and precisely in order to position the cone tip at the desired position within the shell. Both are critical for the fast ignition experiments. The presence of the cone in the shell creates new challenges in characterization of the assembled targets. Finally, for targets requiring a gas fill, the cone-shell assembly needs to be tested for gas retention and proper strength at the glue joint. This paper presents an overview of the developmental efforts and technical issues addressed during the fabrication of fast ignition targets.},
doi = {},
url = {https://www.osti.gov/biblio/823601}, journal = {},
number = ,
volume = ,
place = {United States},
year = {Sun Jun 01 00:00:00 EDT 2003},
month = {Sun Jun 01 00:00:00 EDT 2003}
}

Conference:
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