Hollow foam microshells for liquid-layered cryogenic inertial confinement fusion targets
- W. J. Schafer Associates, Livermore, California 94550 (United States)
- Lawrence Livermore National Laboratory, Livermore, California 94550 (United States)
Future U.S. inertial confinement fusion (ICF) targets will use capsules, 1--2 mm in diameter, with uniform 100 {mu}m thick, cryogenic fuel layers. Research is currently underway to identify optimal methods for producing these thick, uniform layers. One method is to use a spherical polymer foam layer within a full density polymer overcoat to support the fuel. Targets of this type, 0.4--0.8 mm in diameter, with 10--30 {mu}m walls, have been developed by the Institute of Laser Engineering at Osaka University, Japan. Reported here are the results obtained from work to extend the method to the future ICF target design. Overcoated foam shells of the proper dimensions were produced, but their optical properties precluded the use of current diagnostics to determine the amount and uniformity of the fuel fill. Briefly outlined are options for improving the optical properties. {copyright} {ital 1995} {ital American} {ital Vacuum} {ital Society}
- DOE Contract Number:
- AC03-91SF18601; W-7405-ENG-48
- OSTI ID:
- 250559
- Journal Information:
- Journal of Vacuum Science and Technology, A, Vol. 13, Issue 5; Other Information: PBD: Sep 1995
- Country of Publication:
- United States
- Language:
- English
Similar Records
Development of Divinylbenzene Foam Shells for Use as Inertial Fusion Energy Reactor Targets
A novel technique to make foam shells with high sphericity and wall uniformity for cryogenic laser fusion targets