Investigation of thin laser-driven flyer plates using streak imaging and stop motion microphotography
Conference
·
OSTI ID:102374
- Lawrence Livermore National Lab., CA (United States)
- Sandia National Labs., Albuquerque, NM (United States)
The dynamic behavior of laser-accelerator flyers has been studied using high-speed streak imaging in combination with stop motion microphotography. With very thin targets, melting and plasma penetration of the flyer material occur in rapid sequence. The time delay from the onset of motion to flyer breakup increases with flyer thickness and decreasing incident energy. Flyer materials examined include pure aluminum (0.25-2.6 {mu}m thick) and composite targets (0.5-2.0 {mu}m thick) containing an insulating layer of aluminum oxide. While flyer breakup is observed in both types of material, the Al{sub 2}O{sub 3} barrier significantly delays the deleterious effects of deep thermal diffusion.
- Research Organization:
- Sandia National Labs., Albuquerque, NM (United States); Lawrence Livermore National Lab., CA (United States)
- Sponsoring Organization:
- USDOE, Washington, DC (United States)
- DOE Contract Number:
- AC04-94AL85000; W-7405-ENG-48
- OSTI ID:
- 102374
- Report Number(s):
- SAND--95-1936C; CONF-950846--37; ON: DE95017575
- Country of Publication:
- United States
- Language:
- English
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