17 citations · 46 across the 15 of their papers we have counts for
15 papers
Faraday rotation signal amplification using high-power lasers
P. -A. Gourdain, A. Bachmann, I. N. Erez +7
Magnetic fields play an important role in plasma dynamics, yet it is a quantity difficult to measure accurately with physical probes, whose presence disturbs the very field they me…
The impact of electron inertia on collisional laser absorption for high energy density plasmas
James R. Young, Pierre-Alexandre Gourdain
High-power lasers are at the forefront of science in many domains. While their fields are still far from reaching the Schwinger limit, they have been used in extreme regimes, to su…
True optical spacial derivatives for plasma density measurements
P. -A. Gourdain, I. N. Erez, M. E. Evans +4
This paper shows analytically and numerically that a vortex plate coupled to a neutral density filter can deliver a true optical derivative when placed at the focal plane of a …
A fully implicit method using nodal radial basis functions to solve the linear advection equation
P. -A. Gourdain, M. B. Adams, M. Evans +3
Radial basis functions are typically used when discretization sche-mes require inhomogeneous node distributions. While spawning from a desire to interpolate functions on a random s…
The phase unwrapping of under-sampled interferograms using radial basis function neural networks
Pierre-Alexandre Gourdain, Aidan Bachmann
Interferometry can measure the shape or the material density of a system that could not be measured otherwise by recording the difference between the phase change of a signal and a…
The conceptual design of 100-kA pulsed magnetic field generator for magnetized high-energy-density plasma experiments
R. V. Shapovalov, R. B. Spielman, G. Brent +1
This paper presents the conceptual design of a high-voltage pulser intended to generate 30-T magnetic fields for magneto-inertial fusion experiments at the OMEGA facility. The puls…
Mega-ampère to mega-gauss: the generation of intense magnetic fields using fast pulsed-power drivers
P. -A. Gourdain, G. Brent, J. B. Greenly +2
Intense magnetic fields modify the properties of extremely dense matter via complex processes that call for precise measurements in very harsh conditions. This endeavor becomes eve…
The generation of warm dense matter using a magnetic anvil cell
P. -A. Gourdain, A. B. Sefkow, C. E. Seyler
Warm dense matter is present at the heart of gas giants and large exo-planets. Yet, its most basic properties are unknown and limit our understanding of planetary formation and evo…
HADES: a High Amperage Driver for Extreme States
P. -A. Gourdain, M. Evans, B. Foy +3
Linear transformer drivers (LTD) allow to greatly reduce the size of pulsed-power drivers while increasing their efficiency and repetition rate. However, limitations on the capacit…
High voltage charging system for pulsed power generators
M. Evans, B. Foy, D. Mager +2
A robust and portable power supply has been developed specifically for charging linear transformer drivers, a modern incarnation of fast pulsed power generators. It is capable of g…
The impact of the Hall term on tokamak plasmas
P. -A. Gourdain
The Hall term has often been neglected in MHD codes as it is difficult to compute. Nevertheless setting it aside for numerical reasons led to ignoring it altogether. This is especi…
The impact of three dimensional MHD instabilities on the generation of warm dense matter using a MA-class linear transformer driver
P. -A. Gourdain, C. E. Seyler
Warm dense matter is difficult to generate since it corresponds to a state of matter which pressure is order of magnitude larger than can be handled by natural materials. A diamond…
A physics-based solver to improve the illumination of cylindrical targets using spherically-distributed high power laser systems
P. -A. Gourdain
In recent years, our understanding of high energy density plasmas has played an important role in improving inertial fusion confinement and in emerging new fields of physics, such…
The stability of unity beta equilibria in tokamaks
P. -A. Gourdain
The plasma beta, ratio of kinetic to magnetic pressure, inside a tokamak should stay below the Troyon limit to avoid major plasma instabilities. However, this paper argues that Tro…
Dual equilibrium in a finite aspect ratio tokamak
P. -A. Gourdain, S. C. Cowley, J. -N. Leboeuf
A new approach to high pressure magnetically-confined plasmas is necessary to design efficient fusion devices. This paper presents an equilibrium combining two solutions of the Gra…