The LICPA-driven collider—a novel efficient tool for the production of ultra-high pressures in condensed media

摘要: Generation of strong shock waves for the production Mbar or Gbar pressures is a topic high relevance contemporary research in various domains, including inertial confinement fusion, laboratory astrophysics, planetology and material science. The multi-Mbar range can be produced by shocks generated using chemical explosions, light-gas guns, Z-pinch machines lasers. Higher pressures, sub-Gbar are attainable only with nuclear explosions laser-based methods. Unfortunately, due to low efficiency energy conversion from laser (below few percent), multi-kJ, multi-beam lasers needed produce such these Here, we propose investigate novel scheme generating high-pressure which much more efficient than schemes known so far. In proposed scheme, dense target impact fast projectile driven laser-induced cavity pressure acceleration (LICPA) mechanism. Using two-dimensional hydrodynamic simulations measurements performed at kilojoule PALS facility it shown that LICPA-driven collider laser-to-shock reach very value ~ 15–20 % and, as result, 0.5–1 ≤ 0.5 kJ. On other hand, could this low-energy (~ 10 J) available on market. It would open up possibility conducting energy-density science also small, university-class laboratories.