Publications (16)
Highly Efficient and Unsupervised Framework for Moving Object Detection in Satellite Videos
C. Xiao, W. An, Y. Zhang +5
Moving object detection in satellite videos (SVMOD) is a challenging task due to the extremely dim and small target characteristics. Current learning-based methods extract spatio-t…
Exact phase space matching for staging plasma and traditional accelerator components using longitudinally tailored plasma profiles
X. L. Xu, Y. P. Wu, C. J. Zhang +10
Phase space matching between two plasma-accelerator (PA) stages and between a PA and a traditional accelerator component is a critical issue for emittance preservation of beams acc…
Phase Space Dynamics of Ionization Injection in Plasma Based Accelerators
X. L. Xu, J. F. Hua, F. Li +11
The evolution of beam phase space in ionization-induced injection into plasma wakefields is studied using theory and particle-in-cell (PIC) simulations. The injection process cause…
Optimizing Laser Wakefield Acceleration in the Nonlinear Self-Guided Regime for Fixed Laser Energy
A. Davidson, A. Tableman, P. Yu +5
The scaling laws for laser wakefield acceleration in the nonlinear, self-guided regime [Lu et al. Phys. Rev. Spec. Top. Accel. Beams 10, 061301 (2007)] are examined in detail using…
Implementation of a Mesh refinement algorithm into the quasi-static PIC code QuickPIC
Q. Su, F. Li, W. An +8
Plasma-based acceleration (PBA) has emerged as a promising candidate for the accelerator technology used to build a future linear collider and/or an advanced light source. In PBA,…
Plasma Wakefield Accelerators with Ion Motion and the E-314 Experiment at FACET-II
C. Hansel, M. Yadav, P. Manwani +3
A future plasma based linear collider has the potential to reach unprecedented energies and transform our understanding of high energy physics. The extremely dense beams in such a…
Nonlinear equilibria and emittance growth in plasma wakefield accelerators with ion motion
C. Hansel, W. An, W. Mori +1
The plasma wakefield accelerator may accelerate particles to high energy in a future linear collider with unprecedented acceleration gradients, exceeding the GeV/m range. Beams for…
Measurement of transverse wakefields induced by a misaligned positron bunch in a hollow channel plasma accelerator
C. A. Lindstrøm, E. Adli, J. M. Allen +18
Hollow channel plasma wakefield acceleration is a proposed method to provide high acceleration gradients for electrons and positrons alike: a key to future lepton colliders. Howeve…
Implementation of a hybrid particle code with a PIC description in r-z and a gridless description in into OSIRIS
A. Davidson, A. Tableman, W. An +6
For many plasma physics problems, three-dimensional and kinetic effects are very important. However, such simulations are very computationally intensive. Fortunately, there is a cl…
Evidence for high-energy and low-emittance electron beams using ionization injection of charge in a plasma wakefield accelerator
N. Vafaei-Najafabadi, W. An, C. E. Clayton +15
Ionization injection in a plasma wakefield accelerator was investigated experimentally using two lithium plasma sources of different lengths. The ionization of the helium gas, used…
Generation of meter-scale hydrogen plasmas and efficient, pump-depletion-limited wakefield excitation using 10 GeV electron bunches
C. Zhang, D. Storey, P. San Miguel Claveria +26
High repetition rates and efficient energy transfer to the accelerating beam are important for a future linear collider based on the beam-driven plasma wakefield acceleration schem…
High quality electron bunch generation using a longitudinal density-tailored plasma-based accelerator in the three-dimensional blowout regime
X. L. Xu, F. Li, W. An +4
The generation of very high quality electron bunches (high brightness and low energy spread) from a plasma-based accelerator in the three-dimensional blowout regime using self-inje…
Optimization of transformer ratio and beam loading in a plasma wakefield accelerator with a structure-exploiting algorithm
Q. Su, J. Larson, T. N. Dalichaouch +8
Plasma-based acceleration has emerged as a promising candidate as an accelerator technology for a future linear collider or a next-generation light source. For a linear collider, t…
Snowmass 2013 Computing Frontier: Accelerator Science
P. Spentzouris, E. Cormier-Michel, C. Joshi +24
This is the working summary of the Accelerator Science working group of the Computing Frontier of the Snowmass meeting 2013. It summarizes the computing requirements to support acc…
A near-ideal dechirper for plasma-based electron and positron acceleration using a hollow channel plasma
Y. P. Wu, J. F. Hua, C. H. Pai +15
Plasma-based electron and positron wakefield acceleration has made great strides in the past decade. However one major challenge for its applications to coherent light sources and…
Nano-scale electron bunching in laser-triggered ionization injection in plasma accelerators
X. L. Xu, C. J. Zhang, F. Li +9
Ionization injection is attractive as a controllable injection scheme for generating high quality electron beams using plasma-based wakefield acceleration. Due to the phase depende…