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Title: Vacuum Insulator Requirements and Design for the 100 Terawatt Upgrade to the Z Pulsed Power Driver.

Abstract

Abstract not provided.

Authors:
; ; ; ; ; ; ;
Publication Date:
Research Org.:
Sandia National Lab. (SNL-NM), Albuquerque, NM (United States); Sandia National Laboratories, Livermore, CA
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1266200
Report Number(s):
SAND2006-3382C
525812
DOE Contract Number:
AC04-94AL85000
Resource Type:
Conference
Resource Relation:
Conference: Proposed for presentation at the ISDEIV held September 25-29, 2006 in Matsue, Japan.
Country of Publication:
United States
Language:
English

Citation Formats

Savage, Mark E, Stygar, William A., Stoltzfus, Brian, Whinnery, LeRoy L.,, Elizondo-Decanini, Juan M., Owen, Albert, Struve, Kenneth W., and Bennett, Lawrence F.. Vacuum Insulator Requirements and Design for the 100 Terawatt Upgrade to the Z Pulsed Power Driver.. United States: N. p., 2006. Web.
Savage, Mark E, Stygar, William A., Stoltzfus, Brian, Whinnery, LeRoy L.,, Elizondo-Decanini, Juan M., Owen, Albert, Struve, Kenneth W., & Bennett, Lawrence F.. Vacuum Insulator Requirements and Design for the 100 Terawatt Upgrade to the Z Pulsed Power Driver.. United States.
Savage, Mark E, Stygar, William A., Stoltzfus, Brian, Whinnery, LeRoy L.,, Elizondo-Decanini, Juan M., Owen, Albert, Struve, Kenneth W., and Bennett, Lawrence F.. Mon . "Vacuum Insulator Requirements and Design for the 100 Terawatt Upgrade to the Z Pulsed Power Driver.". United States. doi:. https://www.osti.gov/servlets/purl/1266200.
@article{osti_1266200,
title = {Vacuum Insulator Requirements and Design for the 100 Terawatt Upgrade to the Z Pulsed Power Driver.},
author = {Savage, Mark E and Stygar, William A. and Stoltzfus, Brian and Whinnery, LeRoy L., and Elizondo-Decanini, Juan M. and Owen, Albert and Struve, Kenneth W. and Bennett, Lawrence F.},
abstractNote = {Abstract not provided.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Mon May 01 00:00:00 EDT 2006},
month = {Mon May 01 00:00:00 EDT 2006}
}

Conference:
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  • Abstract not provided.
  • The 100 TW Particle Beam Fusion Accelerator (PBFA II) is well into the procurement and assembly phases, with the first shot scheduled for January 1986. Installation of several major sub-assemblies is underway. The PBFA II output will drive a fast opening switch in the vacuum insulator stack, providing a 30 MV, 15 ns output pulse, which accelerates lithium ions. The ions will focus onto a pellet containing deuterium-tritium, producing fusion energy. Several research areas will be reviewed: low jitter, highly reliable 370 kJ Marx generators; highly synchronized gas switching at 5 MV; efficient water switch operation of 5 MV lines;more » series-parallel arrangements for increasing voltage or current; and plasma erosion opening switches.« less
  • In the concept of the dynamic hohlraum an imploding z-pinch is optically thick to its own radiation. Radiation may be trapped inside the pinch to give a radiation temperature inside the pinch greater than that outside the pinch. The radiation is typically produced by colliding an outer Z-pinch liner onto an inner liner. The collision generates a strongly radiating shock, and the radiation is trapped by the outer liner. As the implosion continues after the collision the radiation temperature may continue to increase due to ongoing PdV (pressure times change in volume) work done by the implosion. In principal themore » radiation temperature may increase to the point at which the outer liner burns through, becomes optically thin, and no longer traps the radiation. One application of the dynamic hohlraum is to drive an ICF (inertial confinement fusion) pellet with the trapped radiation field. Members of the dynamic hohlraum team at Sandia National Labs have used the pulsed power driver Z (20 LMA, 100 ns) to create a dynamic hohlraum with temperature linearly ramping from 100 to 180 eV over 5 ns. On this shot zp214 a nested tungsten wire array of 4 and 2 cm diameters with masses of 2 and 1 mg imploded onto a 2.5 mg plastic annulus at 5 mm diameter. The current return can on this shot was slotted. It is likely the radiation temperature may be increased to over 200 CV by stabilizing the pinch with a solid current return can. A current return can with 9 slots imprints 9 filaments onto the imploding pinch. This degrades the optical trapping and the quality of the liner collision. A 1.6 mm diameter capsule situated inside this dynamic hohlraum of zp214 would see 15 kJ of radiation impinging on its surface before the pinch itself collapses to a 1.6 mm diameter. Dynamic hohlraum shots including pellets are scheduled to take place on Z in September of 1998.« less
  • No abstract prepared.