Analytical Models for the Design of the LAPLAS Experiment

Abstract

We review the theoretical activity at the University of Castilla-La Mancha directed to the design of the LAPLAS (Laboratory of Planetary Sciences) experiment in the framework of the HEDgeHOB international collaboration. We have developed analytical models for the different phases of LAPLAS, including models for the implosion of the cylindrical shell target, for the generation of an annular focal spot by means of a high-frequency wobbler system and for the hydrodynamic instabilities that could affect the performance of the target implosion. These models have been complemented with one and two-dimensional numerical simulations and such a combination have allowed us to have a powerful tool available for the design of the experiments as well as for the interpretation of their results.

Modeling of the Temperature‐Anisotropy Relaxation Time of the Earth's Magnetosheath

“…(10,11) were then further improved by least-square fits of experimental data [28]. But up to now, no nonlinear theory of the instabilities was developed.…”

“…Thus, the magnetosheath is a space laboratory for the investigation of MHD and kinetic waves. The analysis of the formation of magnetohydrodynamic waves as well as turbulence driven by ion beams, of course on another scale, is also the aim of the future LAPLAS (Laboratory of Planetary Sciences) experiment planned for the FAIR (Facility for Antiprotons and Ion Research) facility at GSI (Gesellschaft für Schwerionenforschung) Darmstadt, which is part of the international HEDgeHOB (High Energy Density matter generated by Heavy IOn Beams) collaboration [9,10].…”

Direct-drive heavy ion beam inertial confinement fusion: a review, toward our future energy source

“…Other HEDP studies are conducted and planned at the existing and constructing HIB facilities of FAIR [19], HIAF [20][21][22][48][49][50], NDCX II [18,47] and an induction accelerator at High Energy Accelerator Research Organization (KEK), Tsukuba, Japan [103]. At FAIR, GSI, Darmstadt, EOS and HEDP studies are planned at various material states with phase transition, driven by HIB [97,98,[104][105][106][107][108][109][110][111][112][113][114][115]. A magnetized plasma compression [24] is also planned at FAIR, and an annular HIB illuminates a cylindrical hollow target.…”

Cryogenic Hydrogen Fuel for Controlled Inertial Confinement Fusion (Cylindrical Targets for the Laplas Experiments)

“…При этом риск нарушения качества КТМ в процессе доставки и позиционирования существенно уменьшается. Решение вопроса о возможном применении защитного элемента необходи-мо, так как в исходном дизайне мишени этот элемент отсутствует [8].…”