Collapsing bubble in metal for high energy density physics study
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AbstractThis paper presents a new idea to produce matter in the high energy density physics (HEDP) regime in the laboratory using an intense ion beam. A gas bubble created inside a solid metal may collapse by driving it with an intense ion beam. The melted metal will compress the gas bubble and supply extra energy to it. Simulations show that the spherical implosion ratio can be about 5 and at the stagnation point, the maximum density, temperature and pressure inside the gas bubble can go up to nearly 2 times solid density, 10 eV and a few megabar (Mbar) respectively. The proposed experiment is the first to permit access into the Mbar regime with existing or near-term ion facilities, and opens up possibilities for new physics gained through careful comparisons of simulations with measurements of quantities like stagnation radius, peak temperature and peak pressure at the metal wall. (C) 2011 Elsevier B. V. All rights reserved.
All Author(s) ListNg SF, Barnard JJ, Leung PT, Yu SS
Journal nameHigh Energy Density Physics
Volume Number7
Issue Number3
Pages203 - 215
LanguagesEnglish-United Kingdom
KeywordsBubbles; Ion beams; Plasma; Shock waves
Web of Science Subject CategoriesPhysics; Physics, Fluids & Plasmas; PHYSICS, FLUIDS & PLASMAS

Last updated on 2020-22-09 at 01:38