Quasi-Isentropic and Shock Compression Measurements of Iron Response by Direct Laser Illumination

Journal Article · Fri Jul 28 00:00:00 EDT 2006 · AIP Conference Proceedings

DOI:https://doi.org/10.1063/1.2263592· OSTI ID:20875708

Tierney, T E; Swift, D C; Luo, S -N ^[1]; Niemczura, J ^[2]; Gammel, J T ^[3]; Peralta, P ^[4]

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1. Physics Division, PO Box 1663, Los Alamos National Laboratory, Los Alamos, NM 87544 (United States)
2. Department of Aerospace and Mechanical Engineering, University of Texas at Austin, Austin, TX 78712 (United States)
3. Theoretical Physics Division, PO Box 1663, Los Alamos National Laboratory, Los Alamos, NM 87544 (United States)
4. Mechanical and Aerospace Engineering Department, Arizona State University, Tempe, AZ 85287 (United States)

We performed a series of dynamic loading experiments on iron with pressures of 5-40 GPa at the Trident Laser Laboratory. We used 2.4 ns laser pulses of varying shapes and irradiances of 2 to 1000 GW/cm2 to load a 5-mm diameter region of rolled iron foils that were 25-50 microns thick. The temporal characteristic of the laser irradiance was tailored to produce shock or quasi-isentropic loading histories. Line-imaging VISAR was used to time-resolve free surface velocities. In several experiments, two different thickness samples, placed side-by-side, were subjected to the same irradiance history. We describe the experiment configuration, analysis, and results.

• OSTI ID: 20875708
• Journal Information: AIP Conference Proceedings, Journal Name: AIP Conference Proceedings Journal Issue: 1 Vol. 845; ISSN APCPCS; ISSN 0094-243X
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
COMPRESSION
DYNAMIC LOADS
FOILS
ILLUMINANCE
IRON
ISENTROPIC PROCESSES
LASER RADIATION
LASERS
LOADING
PRESSURE DEPENDENCE
PRESSURE RANGE GIGA PA
PULSES
RADIANT FLUX DENSITY
SHOCK WAVES
TESTING
THICKNESS