Effect of Multi-Shot X-Ray Exposures in IFE Armor Materials

Journal Article · Fri Dec 10 04:00:00 EST 2004 · Journal of Nuclear Materials

OSTI ID:875662

Latkowski, J F; Abbott, R P; Schmitt, R C; Bell, B K

As part of the High Average Power Laser (HAPL) program the performance of tungsten as an armor material is being studied. While the armor would be exposed to neutrons, x-rays and ions within an inertial fusion energy (IFE) power plant, the thermomechanical effects are believed to dominate. Using a pulsed x-ray source, long-term exposures of tungsten have been completed at fluences that are of interest for the IFE application. Modeling is used in conjunction with experiments on the XAPPER x-ray damage facility in an effort to recreate the effects that would be expected in an operating IFE power plant. X-ray exposures have been completed for a variety of x-ray fluences and number of shots. Analysis of the samples suggests that surface roughening has a threshold that is very close to the fluences that reproduce the peak temperatures expected in an IFE armor material.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 875662
• Report Number(s): UCRL-JRNL-208587
• Journal Information: Journal of Nuclear Materials, Journal Name: Journal of Nuclear Materials Journal Issue: 3 Vol. 347; ISSN 0022-3115; ISSN JNUMAM
• Country of Publication: United States
• Language: English

Related Subjects

29 ENERGY PLANNING, POLICY, AND ECONOMY
ARMOR
LASERS
NEUTRONS
PERFORMANCE
POWER PLANTS
SIMULATION
THERMONUCLEAR REACTORS
TUNGSTEN
X-RAY SOURCES