astrophysically-relevant jets in the laboratory is by using the ablation
We describe the methodology employed for developing a gas puff load on Z, which combines characterization and modeling of the neutral gas mass flow from a supersonic nozzle, numerical modeling of the implosion of this mass profile, and experimental evaluation of...Imploding wire arrays on the 20 MA Z generator have recently provided some of the most powerful and energetic laboratory sources of multi-keV photons, including ∼375 kJ of Al K-shell emission (hν ∼ 1–2 keV), ∼80 kJ of stainless steel K-shell emission (hν ∼ 5–9 keV) and a kJ-level of Mo K-shell emission (hν ∼ 17 keV). 2,375 Followers, 975 Following, 365 Posts - See Instagram photos and videos from elyse thompson (@elyse.thompson) Experiments with the aim of studying the dynamics of a ~mum thick radial metallic foil subject to the current from the MAGPEE generator (peak current of 1 MA in 250 ns) have been performed at Imperial College. the MAGPIE generator. Instrum.
Initially the wires ablate, then an implosion begins, starting close to the cathode where the global magnetic field is highes...form given only.
These Outside the vicinity of the wire cores, ablation flow from coiled arrays is modulated at the coil wavelength and has a two-stream structure in the r, thetas plane. We are data scientists, developers, engineers, urban planners, gamers and policy wonks.
I. H. Mitchell et al., R...A current switch geometry in which an inverse wire array (where the wires hang down from a central current conductor, acting as a return current cage) switches current into a cylindrical wire array have been fielded on the MAGPIE generator (1.4MA, 240ns). Efficiently radiating at these high photon energies is a significant challenge which requires the careful design and optimization of the ga...By magnetizing the fusion fuel in inertial confinement fusion (ICF) systems, the required stagnation pressure and density can be relaxed dramatically.
67, 1533 (2005)]. velocity of ˜100 km/s.
This reproducibility in x-ray production is particularly significant in light of the variations in instability evolution observed between experiments. The experiments were carried out
Where significant structure i...A detailed study of the radiative precursor that develops ahead of converging blast waves in gas-filled cylindrical liner z-pinch experiments is presented. discussed and preliminary data presented. Variation in the cathode diameter and wire diameter does not affect the overall plasma dynamics but controls the time of wire breakage and the time of pinch formation.
A Thomson scattering diagnostic has been developed to probe plasmas produced using the MAGPIE generator (1.4MA, 240ns). flow...A new wire array configuration has been used to create thin shell-like implosions in a cylindrical array.
in which the dense, stationary cores of the wires steadily ablate The scattering operates in the collective regime (α>1) allowing spatially localized measurements of the ion or electron plasma temperatures and of the plasma bulk velocity. by injecting a highly-collimated, supersonic, cold gas jet above the
It has been implemented and researched at Imperial College.
The inverse wire array has been found to be very effective as a current switch switching the e...The dynamics of the interaction of a supersonic, radiatively cooled plasma jet with an ambient gas are presented. by the formation of a magnetically collima...An inverse (exploding) wire array configuration, in which the wires form a cylinder around a current carrying electrode on axis, was used to study the ablation phase of the wires. Join Facebook to connect with Elyse Thompson and others you may know.
Within the vicinity of the helic...We report on experiments in which magnetically driven radiatively cooled
A thorough analysis method is presented that explains how the load voltage of interest is found from raw signals obtained using a resistive voltage divider.
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There have been on...Magnetized Liner Inertial Fusion (MagLIF) is a magneto-inertial fusion concept, which is presently being studied on the Z Pulsed Power Facility. to reproduce so...Shock-less dynamics were observed during the ablation phase in tungsten wire array experiments carried out on the 1.4 MA, 240 ns MAGPIE generator at Imperial College London.
The...The MAGPIE generator (1.4 MA, 240 ns) drives an ablative plasma from a
converging cylindrical geometry have been carried out on the MAGPIE
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are intuitive, inspiring, and intellectually honest. These experiments were carried out on the 1.4MA, 240ns MAGPIE generator at Imperial College London. 9(1), 52-62 (2013)] for...Preliminary results of the self-emission of charged particles from The current path produced a
In a two-stage wire-array
research on the MAGPIE generator.
The MAGPIE generator was used to drive coiled wires in an inverse array configuration to study the distribution of...High current pulsed-power generators efficiently store and deliver magnetic energy to z-pinch targets.
of the outcome, not just suppliers of the solution.
The diagnostic uses a frequency doubled Nd:YAG laser delivering ~3-4J in 8ns FWHM to the target plasma.