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Nail-like targets for laser plasma interaction experiments

Description: The interaction of ultra-high power picosecond laser pulses with solid targets is of interest both for benchmarking the results of hybrid particle in cell (PIC) codes and also for applications to re-entrant cone guided fast ignition. We describe the construction of novel targets in which copper/titanium wires are formed into 'nail-like' objects by a process of melting and micromachining, so that energy can be reliably coupled to a 24 {micro}m diameter wire. An extreme-ultraviolet image of the i… more
Date: December 18, 2007
Creator: Pasley, J.; Wei, M.; Shipton, E.; Chen, S.; Ma, T.; Beg, F. N. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Absence of molecular deuterium dissociation during room-temperature permeation into polystyrene ICF target shells

Description: Polystyrene microshells filled with deuterium and tritium gas are important target shells for inertially confined fusion (ICF) and are particularly promising for target containing spin-polarized hydrogens fuels. A currently active approach to the latter uses polarized D in HD, in a method which requires preservation of the high purity of the initially prepared HD (very low specified H{sub 2} and D{sub 2} concentrations). This would not be possible if dissociation should occur during permeation … more
Date: January 1, 1991
Creator: Honig, A.; Alexander, N.; Fan, Q.; Gram, R. & Kim, H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

A 1. 5--4 Kelvin detachable cold-sample transfer system: Application to inertially confined fusion with spin-polarized hydrogens fuels

Description: A compact cold-transfer apparatus for engaging and retrieving samples at liquid helium temperatures (1.5--4K), maintaining the samples at such temperatures for periods of hours, and subsequently inserting them in diverse apparatuses followed by disengagement, is described. The properties of several thermal radiation-insulating shrouds, necessary for very low sample temperatures, are presented. The immediate intended application is transportable target-shells containing highly spin-polarized deu… more
Date: January 1, 1990
Creator: Alexander, N.; Barden, J.; Fan, Q. & Honig, A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

New polymer target-shell properties and characterizations. Appendix A

Description: A method for characterizing ICF target shells is presented, based on measurement of the gas released from a single shell into a small volume. It utilizes cryogenic permeation systems developed in connection with our work on ICF targets containing nuclear spin-polarized deuterium. Permeation rates for polystyrene and parylene-coated-polystyrene shells are measured at temperatures from 350K down to 180K. Burst or implosion pressure can be determined over a full temperature range down to 20K. Shel… more
Date: December 31, 1993
Creator: Honig, A.; Wei, X.; Fan, Q.; Alexander, N. & Palmer, N.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

Challenges Surrounding the Injection and Arrival of Targets at LIFE Fusion Chamber Center

Description: IFE target designers must consider several engineering requirements in addition to the physics requirements for successful target implosion. These considerations include low target cost, high manufacturing throughput, the ability of the target to survive the injection into the fusion chamber and arrive in a condition and physical position consistent with proper laser-target interaction and ease of post-implosion debris removal. This article briefly describes these considerations for the Laser I… more
Date: December 1, 2010
Creator: Miles, R.; Spaeth, M.; Manes, K.; Amendt, P.; Tabak, M.; Bond, T. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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