Shock-wave-based density down ramp for electron injection

Connecting shock velocities to electron-injection mechanisms.

Electrons can be accelerated by their interaction with nonlinearly saturated electrostatic waves up to speeds with which they can undergo diffusive acceleration across supernova remnant shocks. Here, we model this wave-electron interaction by particle-in-cell and Vlasov simulations. We find that the lifetime of the saturated wave is considerably longer in the Vlasov simulation, due to differenc...

Ramp Up / Down Floating Point

Fast electron propagation in high-density plasmas created by shock wave compression

Until now almost all the experimental results on fast electron generation and transport have been obtained in solid targets. It is clear instead that the fast ignitor approach to inertial fusion concerns the propagation of a fast electron beam in dense hot plasma in the pellet surrounding the nuclear fuel. We present preliminary results from a recent experiment on fast electrons propagation and...

Many-electron Wave Function and Momentum Density

Inelastic x-ray scattering at large momentum transfer is an ideal probe of the ground state of electrons in condensed matter. The experimental determination of the electron momentum density (EMD) is based on the Impulse Approximation (IA). In general, the EMD even in simple metals cannot be well represented by the mean-field Independent Particle Model (IPM). In other words, the many-electron wa...

Advances on Sensitive Electron-Injection Based Cameras for Low-Flux, Short-Wave Infrared Applications

Shortwave infrared (SWIR) photon detection has become an essential technology in the modern world. Sensitive SWIR detector arrays with high pixel density, low noise levels, and high signal-to-noise-ratios are highly desirable for a variety of applications including biophotonics, light detection and ranging, optical tomography, and astronomical imaging. As such many efforts in infrared detector ...