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Title: Fabrication of cylindrical, microcellular foam-filled targets, containing aluminum spheres, for sphere drag experiments

Abstract

Hollow cylindrical fusion targets of 200--300 [mu]m diam and 500--600 [mu]m length, were fabricated and fitted at one end with a metallic ablator plate. The cylinders were then filled with a solution of polyfunctional acrylate monomer, which was subsequently polymerized to a gel using ultraviolet initiated polymerization. Either one or two aluminum spheres of diameter between 10 and 30 [mu]m were placed in the gel at defined locations, before the gel was precipitated to give, on drying by critical point dryer, a foam of the required density (about 100 mg cm[sup [minus]3]). The final targets had the sphere or spheres embedded in the foam at specified locations. Several techniques for placing the spheres were examined and the relative merits of the techniques are discussed.

Authors:
;  [1]; ; ; ;  [2]
  1. Department of Chemistry, University of Dundee, Dundee DD1 4HN (United Kingdom)
  2. Atomic Weapons Establishment PLC, Aldermaston, Reading RG7 4PR (United Kingdom)
Publication Date:
OSTI Identifier:
6921843
Resource Type:
Journal Article
Journal Name:
Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (United States)
Additional Journal Information:
Journal Volume: 12:5; Journal ID: ISSN 0734-2101
Country of Publication:
United States
Language:
English
Subject:
70 PLASMA PHYSICS AND FUSION TECHNOLOGY; THERMONUCLEAR DEVICES; LASER TARGETS; ABLATION; ACRYLATES; ALUMINIUM; CYLINDRICAL CONFIGURATION; FABRICATION; POLYMERIZATION; CARBOXYLIC ACID SALTS; CHEMICAL REACTIONS; CONFIGURATION; ELEMENTS; METALS; TARGETS; 700411* - Inertial Confinement Devices- (1992-)

Citation Formats

Falconer, J W, Nazarov, W, Horsfield, C J, Sutton, D W, Rothman, S D, and Freeman, N J. Fabrication of cylindrical, microcellular foam-filled targets, containing aluminum spheres, for sphere drag experiments. United States: N. p., 1994. Web. doi:10.1116/1.578977.
Falconer, J W, Nazarov, W, Horsfield, C J, Sutton, D W, Rothman, S D, & Freeman, N J. Fabrication of cylindrical, microcellular foam-filled targets, containing aluminum spheres, for sphere drag experiments. United States. https://doi.org/10.1116/1.578977
Falconer, J W, Nazarov, W, Horsfield, C J, Sutton, D W, Rothman, S D, and Freeman, N J. 1994. "Fabrication of cylindrical, microcellular foam-filled targets, containing aluminum spheres, for sphere drag experiments". United States. https://doi.org/10.1116/1.578977.
@article{osti_6921843,
title = {Fabrication of cylindrical, microcellular foam-filled targets, containing aluminum spheres, for sphere drag experiments},
author = {Falconer, J W and Nazarov, W and Horsfield, C J and Sutton, D W and Rothman, S D and Freeman, N J},
abstractNote = {Hollow cylindrical fusion targets of 200--300 [mu]m diam and 500--600 [mu]m length, were fabricated and fitted at one end with a metallic ablator plate. The cylinders were then filled with a solution of polyfunctional acrylate monomer, which was subsequently polymerized to a gel using ultraviolet initiated polymerization. Either one or two aluminum spheres of diameter between 10 and 30 [mu]m were placed in the gel at defined locations, before the gel was precipitated to give, on drying by critical point dryer, a foam of the required density (about 100 mg cm[sup [minus]3]). The final targets had the sphere or spheres embedded in the foam at specified locations. Several techniques for placing the spheres were examined and the relative merits of the techniques are discussed.},
doi = {10.1116/1.578977},
url = {https://www.osti.gov/biblio/6921843}, journal = {Journal of Vacuum Science and Technology, A (Vacuum, Surfaces and Films); (United States)},
issn = {0734-2101},
number = ,
volume = 12:5,
place = {United States},
year = {Thu Sep 01 00:00:00 EDT 1994},
month = {Thu Sep 01 00:00:00 EDT 1994}
}