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Project Icarus: Optimisation of nuclear fusion propulsion for interstellar missions

机译:伊卡洛斯计划:优化星际飞行任务的核聚变推进

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The Daedalus spacecraft design was a two-stage configuration carrying 50,000 tonnes of DHe~3 propellant. Daedalus was powered by electron driven Inertial Confinement Fusion (ICF) to implode the pellets at a frequency of 250 Hz. The mission was to Barnard's star 5.9 light years away in a duration of around 50 years. This paper is related to the successor Project Icarus, a theoretical engineering design study that began on 30 September 2009 and is a joint initiative between the Tau Zero Foundation and The British Interplanetary Society. In the first part of this paper, we explore 'flyby' variations on the Daedalus propellant utilisation for two different mission targets: Barnard's star and Epsilon Eridani, 10.7 light years away. With a fixed propellant mass a number of staged configurations (1-4) are derived for an optimal configuration but then moving to an off-optimal configuration due to the requirement for a high final science payload mass. Some comments are then made on the ICF pellet configuration compared to the typical pellets fielded at the National Ignition Facility (NIF) and those proposed for the Vista and Longshot fusion based propulsion designs. This is a working progress report, which aims to study perturbations of the Daedalus baseline design as part of a trade study. This is a submission of the Project Icarus Study Group.
机译:代达罗斯(Daedalus)航天器的设计是两阶段配置,载有50,000吨DHe〜3推进剂。 Daedalus由电子驱动的惯性约束聚变(ICF)驱动,以250 Hz的频率内爆小球。任务是在距地球约5.9光年的巴纳德恒星上飞行约50年。本文与继任者伊卡洛斯计划(Project Icarus)相关,该计划是一项理论工程设计研究,始于2009年9月30日,是Tau Zero基金会与英国行星际协会的一项联合倡议。在本文的第一部分中,我们探索了Daedalus推进剂利用的“飞越”变体,用于两个不同的任务目标:巴纳德的恒星和距离地球10.7光年的Epsilon Eridani。在固定的推进剂质量的情况下,可以得出多个阶段构型(1-4),以获得最佳构型,但由于对最终科学有效载荷质量的要求较高,因此过渡到非最佳构型。然后,与在国家点火装置(NIF)上部署的典型药丸以及基于Vista和基于Longshot融合技术的推进设计所建议的药丸相比,对ICF药丸配置进行了一些评论。这是一份工作进度报告,旨在研究Daedalus基线设计的扰动,作为贸易研究的一部分。这是伊卡洛斯计划研究小组的意见书。

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