The first capsule implosion experiments on Orion

9th International Conference on Inertial Fusion Sciences and Applications

Garbett, W.J.^1 ; Horsfield, C.J.^1 ; Gales, S.G.^1 ; Leatherland, A.E.^1 ; Rubery, M.S.^1 ; Coltman, J.E.^1 ; Meadowcroft, A.E.^1 ; Rice, S.J.^1 ; Simons, A.J.^1 ; Woolhead, V.E.^1

AWE plc, Aldermaston, Reading, Berkshire

RG7 4PR, United Kingdom^1

关键词: Direct drive;    Future designs;    Hydro codes;    Long pulse;    Physics experiments;    Polar direct drives;    Predictive modelling;    Short-pulse beams;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/717/1/012016/pdf
DOI  :  10.1088/1742-6596/717/1/012016

来源: IOP

【 摘 要 】

Direct drive capsule implosions are being developed on the Orion laser at AWE as a platform for ICF and HED physics experiments. The Orion facility combines both long pulse and short-pulse beams, making it well suited for studying the physics of alternative ignition approaches. Orion implosions also provide the opportunity to study aspects of polar direct drive. Limitations on drive symmetry from the relatively small number of laser beams makes predictive modelling of the implosions challenging, resulting in some uncertainty in the expected capsule performance. Initial experiments have been fielded to evaluate baseline capsule performance and inform future design optimization. Highly promising DD fusion neutron yields in excess of 109have been recorded. Results from the experiments are presented alongside radiation-hydrocode modelling.