Barbara Lewis
Sandia National Laboratories
6 Papers
4 Citations
Barbara Lewis is an academic researcher from Sandia National Laboratories. The author has contributed to research in topics: Pulse shaping & Marx generator. The author has an hindex of 2, co-authored 6 publications.
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Papers
6.1-MV, 0.79-MA laser-triggered gas switch for multimodule, multiterawatt pulsed-power accelerators
K. R. LeChien,William A. Stygar,Mark E. Savage,P. E. Wakeland,V. Anaya,D. S. Artery,M. J. Baremore,David E. Bliss,R. Chavez,G. D. Coombs,J.P. Corley,P. A. Jones,A. K. Kipp,Barbara Lewis,J. A. Lott,J. J. Lynch,G. R. McKee,Stephen Ploor,K.R. Prestwich,S. A. Roznowski,D. C. Spencer,S. D. White,Joseph Ray Woodworth +22 more
TL;DR: The laser-triggered gas switch (LTGS) as mentioned in this paper is used to synchronize the 36 modules of the $Z$ machine at Sandia National Laboratories, and has a lifetime of more than 75 shots.
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A new laser trigger system for current pulse shaping and jitter reduction on Z
David E. Bliss,R.T. Collins,Devon Gardner Dalton,E.J. Dawson,R.L. Doty,T.L. Downey,H.C. Harjes,E.A. Illescas,Marcus D. Knudson,Barbara Lewis,J.A. Mills,S.D. Ploor,J.W. Podsednik,S.T. Rogowski,M.S. Shams,Kenneth W. Struve +15 more
- 15 Jun 2003
TL;DR: In this article, a new laser trigger system (LTS) is installed on Z that benefits the experimenter with reduced temporal jitter on the X-ray output, the confidence to use command triggers for time sensitive diagnostics and the ability to shape the current pulse at the load.
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Enhancements to the short pulse high intensity nanosecond X-radiator (SPHINX) pulsed power system
N. Joseph,Mark E. Savage,Jacob C. Stephens,John A. Lott,Barbara Lewis,Rayburn Dean Thomas,Matthew Torres,Edward George Holman +7 more
- 01 May 2015
TL;DR: The Sandia National Laboratories SPHINX accelerator is used to study the response of electronics to pulsed x-ray and electron environments as mentioned in this paper, which consists of a Marx generator and an oil-insulated pulse-forming line with self-closing oil switches.
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Solid state laser triggering system for the Hermes-III accelerator
B. Grabowski,N. Joseph,Sean K. Coffey,B. Hughes,Barbara Lewis,J. A. Lott,G. Tilley +6 more
- 01 Jun 2017
TL;DR: The Hermes III accelerator at Sandia National Laboratories is a 20cavity multi-stage linear induction voltage accelerator typically producing a 20-MV, 40-ns, 600-kA output pulse Energy is initially stored in Marx banks that are each discharged into two intermediate store capacitors Each of these capacitors are then switched with an SF6-insulated high voltage Rimfire gas switch into four parallel pulse forming lines that further condition the discharge pulse and deliver it to the induction cavities arrayed along the axis of the machine as discussed by the authors.
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Trigger system changes for the HERMES III accelerator
Sean K. Coffey,Barbara Lewis,John Sedillo,J. Diego Salazar +3 more
- 01 Jun 2017
TL;DR: The hardware changes made to the triggering system of the HERMES III accelerator at Sandia National Laboratories, New Mexico are described and the efforts to reference the digitizer time bases together using a modular and scalable approach with commercial-off-the-shelf components are detailed.
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