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Design and fabrication of gas cell targets for laboratory astrophysics experiments on the Orion high-power laser facility

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Abstract

This paper describes the design and fabrication of a range of ‘gas cell’ microtargets produced by the Target Fabrication Group in the Central Laser Facility (CLF) for academic access experiments on the Orion laser facility at the Atomic Weapons Establishment (AWE). The experiments were carried out by an academic consortium led by Imperial College London. The underlying target methodology was an evolution of a range of targets used for experiments on radiative shocks and involved the fabrication of a precision machined cell containing a number of apertures for interaction foils or diagnostic windows. The interior of the cell was gas-filled before laser irradiation. This paper details the assembly processes, thin film requirements and micro-machining processes needed to produce the targets. Also described is the implementation of a gas-fill system to produce targets that are filled to a pressure of 0.1–1 bar. The paper discusses the challenges that are posed by such a target.

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DOI:10.1017/hpl.2017.22

收稿日期:2017-02-21

录用日期:2017-04-19

网络出版日期:2017-05-11

作者单位    点击查看

C. Spindloe:Science and Technology Facilities Council, Harwell Science and Innovation Campus, Didcot, OX11 0QX, UK
D. Wyatt:Science and Technology Facilities Council, Harwell Science and Innovation Campus, Didcot, OX11 0QX, UK
S. Astbury:Science and Technology Facilities Council, Harwell Science and Innovation Campus, Didcot, OX11 0QX, UK
G. F. Swadling:Blackett Laboratory, Imperial College, London, SW7 2BW, UKCurrent address: Lawrence Livermore National Laboratory, California 94550, USA
T. Clayson:Blackett Laboratory, Imperial College, London, SW7 2BW, UK
C. Stehlé:LERMA, Sorbonne Universités, UPMC Univ. Paris 06, Observatoire de Paris, PSL Research University, CNRS, F-75252, Paris, France
J. M. Foster:AWE plc, Aldermaston, Reading RG7 4PR, UK
E. Gumbrell:AWE plc, Aldermaston, Reading RG7 4PR, UKCurrent address: Lawrence Livermore National Laboratory, California 94550, USA
R. Charles:AWE plc, Aldermaston, Reading RG7 4PR, UK
C. N. Danson:Blackett Laboratory, Imperial College, London, SW7 2BW, UKAWE plc, Aldermaston, Reading RG7 4PR, UK
P. Brummitt:Science and Technology Facilities Council, Harwell Science and Innovation Campus, Didcot, OX11 0QX, UK
F. Suzuki-Vidal:Blackett Laboratory, Imperial College, London, SW7 2BW, UK

联系人作者:C. Spindloe(christopher.spindloe@stfc.ac.uk)

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引用该论文

C. Spindloe, D. Wyatt, S. Astbury, G. F. Swadling, T. Clayson, C. Stehlé, J. M. Foster, E. Gumbrell, R. Charles, C. N. Danson, P. Brummitt, and F. Suzuki-Vidal, "Design and fabrication of gas cell targets for laboratory astrophysics experiments on the Orion high-power laser facility," High Power Laser Science and Engineering 5(3), e22 (2017)

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