Abstract
When some amount of energy is released into matter during a short period, its temperature and pressure increase; even if the matter is initially in its condensed phase, the phase can change to gas. Due to the mechanical imbalance between the high-temperature gas and the surrounding media, the former expands, driving the latter outward. This situation is equivalent to what happens in the so-called ‘piston problem,’ in which a piston pushes the gas in front of it, sending a shock wave ahead. In the present case, the contact surface between the high-pressure gas and the surrounding media acts as a piston.
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Notes
- 1.
Later, they developed a different type of LITA in which the tube was in vacuum, a solid-state ablator is set on the wall of the launch tube (wall-propelled LITA, [11]).
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Sasoh, A. (2016). Laser Focusing. In: Igra, O., Seiler, F. (eds) Experimental Methods of Shock Wave Research. Shock Wave Science and Technology Reference Library, vol 9. Springer, Cham. https://doi.org/10.1007/978-3-319-23745-9_4
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DOI: https://doi.org/10.1007/978-3-319-23745-9_4
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