Tahir NA, Hoffmann DH, Kozyreva A, Shutov A, Maruhn JA, Neuner U, Tauschwitz A, Spiller P, Bock R
Institut fur Kernphysik, Technische Universitat Darmstadt, Schlossgarten Strasse 9, 64289 Darmstadt, Germany.
Phys Rev E Stat Phys Plasmas Fluids Relat Interdiscip Topics. 2000 Feb;61(2):1975-80. doi: 10.1103/physreve.61.1975.
In this paper is presented, with the help of sophisticated two-dimensional hydrodynamic simulations, a suitable design with optimized parameters for a heavy-ion beam-matter interaction experiment that will be carried out at the Gesellschaft fur Schwerionenforschung (GSI) Darmstadt by the end of the year 2001 when the upgrade of the existing accelerator facility will be completed. Our simulations show that this upgraded heavy-ion beam is capable of generating strong shocks in solid targets that compress the target material to supersolid densities and generate multi-mbar pressures. This will open up, at the GSI, the possibility of investigation of the equation-of-state properties of matter under such extreme conditions. Numerical simulations can predict the experimental results with reasonable accuracy, which is helpful in designing the diagnostic tools for the experiment.
本文借助精密的二维流体动力学模拟，针对一项重离子束与物质相互作用实验，提出了一种参数优化的合适设计方案。该实验将于2001年底在达姆施塔特的德国重离子研究中心（GSI）进行，届时现有加速器设施的升级将完成。我们的模拟表明，这种升级后的重离子束能够在固体靶中产生强烈的冲击波，将靶材料压缩至超固体密度并产生多兆巴的压力。这将为GSI提供在如此极端条件下研究物质状态方程特性的可能性。数值模拟能够以合理的精度预测实验结果，这有助于设计该实验的诊断工具。
