Efficient acceleration of a dense plasma projectile to hyper velocities in the laser-induced cavity pressure acceleration scheme

0490756 - ÚFP 2019 RIV US eng J - Článek v odborném periodiku
Badziak, J. - Krouský, Eduard - Marczak, J. - Parys, P. - Pisarczyk, T. - Rosiński, M. - Sarzynski, A. - Chodukowski, T. - Dostál, Jan - Dudžák, R. - Kalinowska, Z. - Kucharik, M. - Liška, R. - Pfeifer, Miroslav - Ullschmied, Jiří - Zaras-Szydłowska, A.
Efficient acceleration of a dense plasma projectile to hyper velocities in the laser-induced cavity pressure acceleration scheme.
Laser and Particle Beams. Roč. 36, č. 1 (2018), s. 49-54. ISSN 0263-0346. E-ISSN 1469-803X
GRANT EU: European Commission(XE) 633053 - EUROfusion
Institucionální podpora: RVO:61389021
Klíčová slova: Hyper-velocity impact * laser-driven acceleration * plasma projectile
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 1.194, rok: 2018
https://arxiv.org/pdf/1707.09337

The experimental study of the plasma projectile acceleration in the laser-induced cavity pressure acceleration (LICPA) scheme is reported. In the experiment performed at the kilojoule PALS laser facility, the parameters of the projectile were measured using interferometry, a streak camera and ion diagnostics, and the measurements were supported by two-dimensional hydrodynamic simulations. It is shown that in the LICPA accelerator with a 200-J laser driver, a 4-mu g gold plasma projectile is accelerated to the velocity of 140 km/s with the energetic acceleration efficiency of 15-19% which is significantly higher than those achieved with the commonly used ablative acceleration and the highest among the ones measured so far for any projectiles accelerated to the velocities >= 100 km/s. This achievement opens the possibility of creation and investigation of high-energy-density matter states with the use of moderate-energy lasers and may also have an impact on the development of the impact ignition approach to inertial confinement fusion.
Trvalý link: http://hdl.handle.net/11104/0284907