| Autor: |
V. E. Sherstobitov, V. M. Irtuganov, D. A. Goryachkin, V. P. Kalinin, A. A. Smirnov, S. A. Tul’skyi, I. L. Yachnev, V. V. Sergeev |
| Rok vydání: |
2005 |
| Předmět: |
|
| Zdroj: |
AIP Conference Proceedings. |
| ISSN: |
0094-243X |
| DOI: |
10.1063/1.1925143 |
| Popis: |
The experiments on laser propulsion of cylindrical models with spherical forebodies have been reported. The models with masses 2–5 g were propelled by a TEA CO2 laser (7 J, 1 μs, 30 Hz). The coupling coefficient Cm increased with cylinder length L. At nozzle diameter 20 mm it amounted to 50 dyne/W at L=60 mm and fluence I=1.5 J/cm2. The wire‐assisted flight with acceleration 18 m/s2 was demonstrated for 3.3 g‐model 60 mm‐long. The same model was tested in experiments with a single‐pulse e‐beam‐sustained CO2 laser (30 J, 10–24 μs). It was shown that momentum transferred to the model increases with I regardless of pulse duration τ if the breakdown threshold is exceeded. The maximum Cm≈70 dyne/W was demonstrated for 3.3 g‐model at τ=10 μs and I = 3 J/cm2. Cm≈60 dyne/W was obtained for a 140 g‐model with a single‐pulse TEA CO2 laser (125 J, 1 μs). |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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