An efficient method for unfolding kinetic pressure driven VISAR data
Velocity Interferometer System for Any Reflector (VISAR) [Barker and Hollenbach, J. Appl. Phys.43, 4669 (1972)] is a well-known diagnostic that is employed on many shock physics and pulsed-power experiments. With the VISAR diagnostic, the velocity on the surface of any metal flyer can be found. For most experiments employing VISAR, either a kinetic pressure [Grady, Mech. Mater.29, 181 (1998)] or a magnetic pressure [Lemkeet al., Intl J. Impact Eng.38, 480 (2011)] drives the motion of the flyer. Moreover, reliable prediction of the time-dependent pressure is often a critical component to understanding the physics of these experiments. Although VISAR can provide a precise measurement of a flyer’s surface velocity, the real challenge of this diagnostic implementation is using this velocity to unfold the time-dependent pressure. As a result, the purpose of this paper is to elucidate a new method for quickly and reliably unfolding VISAR data.
- Publication Date:
- Report Number(s):
- SAND-2015-1346J; SAND-2015-5043J
Journal ID: ISSN 2095-4719; 567202
- Grant/Contract Number:
- AC04-94AL85000
- Type:
- Accepted Manuscript
- Journal Name:
- High Power Laser Science and Engineering
- Additional Journal Information:
- Journal Volume: 3; Journal Issue: 3; Journal ID: ISSN 2095-4719
- Publisher:
- Cambridge University Press
- Research Org:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- Sponsoring Org:
- USDOE National Nuclear Security Administration (NNSA)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 46 INSTRUMENTATION RELATED TO NUCLEAR SCIENCE AND TECHNOLOGY; laser driven blast wave; pulsed-power; VISAR; 42 ENGINEERING
- OSTI Identifier:
- 1237375
- Alternate Identifier(s):
- OSTI ID: 1237667
- Free Publicly Accessible Full Text
-
Accepted Manuscript (DOE)
- Publisher's Version of Record
- https://doi.org/10.1017/hpl.2015.23