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Updated: Jul 7, 2026

20 mJ, 1 ps Yb:YAG Thin-disk Regenerative Amplifier
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A compact strip-line pulsed power generator for isentropic compression experiments.

T Ao1, J R Asay, S Chantrenne

  • 1Sandia National Laboratories, Albuquerque, New Mexico 87185, USA.

The Review of Scientific Instruments
|February 6, 2008
PubMed
Summary

Veloce, a compact pulsed power generator, enables detailed isentropic compression experiments (ICE). Researchers examined key issues like sample preparation and loading uniformity for accurate dynamic material testing.

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Area of Science:

  • Pulsed Power Physics
  • Materials Science

Background:

  • Veloce is a novel medium-voltage, high-current pulsed power generator.
  • It offers increased availability and ease of operation compared to larger machines like the Z accelerator.
  • Its application in dynamic material experiments using compact pulsed power technology is new.

Purpose of the Study:

  • To validate the Veloce generator for detailed isentropic compression experiments (ICE).
  • To investigate critical factors influencing experimental accuracy, including panel/sample preparation, loading uniformity, and edge effects.
  • To utilize magnetohydrodynamic (MHD) simulations for result interpretation and improved experimental design.

Main Methods:

  • Experimental examination of panel and sample preparation techniques.
  • Assessment of loading uniformity and edge effects in dynamic material experiments.
  • Magnetohydrodynamic (MHD) simulations using the ALEGRA code for analysis and design.

Main Results:

  • Key issues affecting experimental accuracy were identified and examined.
  • MHD simulations provided insights into experimental results and informed design improvements.
  • Successful application of Veloce for ICE studies on aluminum was demonstrated.

Conclusions:

  • Veloce is a suitable platform for detailed isentropic compression experiments.
  • Careful attention to experimental parameters like sample preparation and loading is crucial for accuracy.
  • Integrated experimental and simulation approaches enhance the understanding of dynamic material behavior.