58 citations · 210 across the 13 of their papers we have counts for
13 papers
Role of self-generated magnetic fields in the inertial fusion ignition threshold
James D. Sadler, Christopher A. Walsh, Ye Zhou +1
Magnetic fields spontaneously grow at unstable interfaces around hot-spot asymmetries during inertial confinement fusion implosions. Although difficult to measure, theoretical cons…
Updated Magnetized Transport Coefficients: Impact on Laser-Plasmas with Self-Generated or Applied Magnetic Fields
Christopher Walsh, James Sadler, Jonathan Davies
Errors in the Epperlein & Haines [PoF (1986)] transport coefficients were recently found at low electron magnetizations, with new magnetic transport coefficients proposed simultane…
Thermomagnetic instability of plasma composition gradients
James D. Sadler, Hui Li
We show that, under Braginskii magneto-hydrodynamics, anti-parallel gradients in average ion charge state and electron temperature can be unstable to the growth of self-generated m…
Symmetric set of transport coefficients for collisional magnetized plasma
James D. Sadler, Christopher A. Walsh, Hui Li
In Braginskii extended magneto-hydrodynamics (ExMHD), applicable to collisional astrophysical and high energy density plasmas, the electric field and heat flow are described by the…
Nonlinear wakefields and electron injection in cluster plasma
Marko Mayr, Ben Spiers, Ramy Aboushelbaya +6
Laser and beam driven wakefields promise orders of magnitude increases in electric field gradients for particle accelerators for future applications. Key areas to explore include t…
Magnetization around mix jets entering inertial confinement fusion fuel
James D. Sadler, Hui Li, Brian M. Haines
Engineering features are known to cause jets of ablator material to enter the fuel hot-spot in inertial confinement fusion implosions. The Biermann battery mechanism wraps them in…
Magnetic field generation from composition gradients in inertial confinement fusion fuel
James D. Sadler, Hui Li, Kirk A. Flippo
Experimental asymmetries in fusion implosions can lead to magnetic field generation in the hot plasma core. For typical parameters, previous studies found that the magnetisation Ha…
Overcoming the dephasing limit in multiple-pulse laser wakefield acceleration
James D. Sadler, Christopher Arran, Hui Li +1
The electric field in laser-driven plasma wakefield acceleration is orders of magnitude higher than conventional radio-frequency cavities, but the energy gain is limited by dephasi…
Kinetic simulations of fusion ignition with hot-spot ablator mix
James D. Sadler, Yingchao Lu, Benjamin Spiers +9
Inertial confinement fusion fuel suffers increased X-ray radiation losses when carbon from the capsule ablator mixes into the hot-spot. Here we present one and two-dimensional ion…
Essential criteria for efficient pulse amplification via Raman and Brillouin scattering
R. M. G. M. Trines, E. P. Alves, E. Webb +14
Raman and Brillouin amplification are two schemes for amplifying and compressing short laser pulses in plasma. Analytical models have already been derived for both schemes, but the…
Machine learning applied to proton radiography
Nicholas F. Y. Chen, Muhammad Firmansyah Kasim, Luke Ceurvorst +6
Proton radiography is a technique extensively used to resolve magnetic field structures in high energy density plasmas, revealing a whole variety of interesting phenomena such as m…
QED-driven laser absorption
M. C. Levy, T. G. Blackburn, N. Ratan +13
Absorption covers the physical processes which convert intense photon flux into energetic particles when a high-power laser illuminates optically-thick matter. It underpins importa…
Quantitative shadowgraphy and proton radiography for large intensity modulations
Muhammad Firmansyah Kasim, Luke Ceurvorst, Naren Ratan +8
Shadowgraphy is a technique widely used to diagnose objects or systems in various fields in physics and engineering. In shadowgraphy, an optical beam is deflected by the object and…