5 citations · 13 across the 13 of their papers we have counts for
11 papers · 1 filter
Using Convolutional Neural Networks to Accelerate 3D Coherent Synchrotron Radiation Computations
Christopher Leon, Petr M. Anisimov, Nikolai Yampolsky +1
Calculating the effects of Coherent Synchrotron Radiation (CSR) is one of the most computationally expensive tasks in accelerator physics. Here, we use convolutional neural network…
Feasibility study for the hard x-ray free electron laser based on synergistic use of conventional and plasma accelerator technologies
Nikolai Yampolsky, Sandra Biedron, Bjorn Manuel Hegelich +3
We access the possibility of using the conventional RF accelerator as an injector for the plasma driven wakefield accelerator. Conventional accelerators deliver high quality beams…
Statistical analysis of electron bunch longitudinal profile reconstructions using the Gerchberg-Saxton algorithm
Bricker Ostler, Nikolai Yampolsky, Quinn Marksteiner
Knowledge of longitudinal electron bunch profiles is vital to optimize the performance of plasma wakefield accelerators and x-ray free electron laser linacs. Because of their impor…
Space charge fields in azimuthally symmetric beams: integrated Green's function approach
Petr M. Anisimov, Nikolai Yampolsky
Electromagnetic fields induced by the space charge in relativistic beams play an important role in Accelerator Physics. They lead to emittance growth, slice energy change, and the…
Imposing strong correlated energy spread on relativistic bunches with transverse deflecting cavities
Nikolai Yampolsky, Evgenya I. Simakov, Alexander Malyzhenkov
We demonstrate a novel scheme for imposing and removing large energy chirp on relativistic electron bunches relying on the transverse-to-longitudinal mixing accomplished with a set…
Modeling of H- ion source at LANSCE
Nikolai Yampolsky, Ilija Draganic, Lawrence Rybarcyk
We report on the progress in modelling performance of the H- ion source at LANSCE. The key aspect we address is the lifetime of the tungsten filament. The lifetime depends on multi…
Beam debunching due to ISR-induced energy diffusion
Nikolai A. Yampolsky, Bruce E. Carlsten
One of the options for increasing longitudinal coherency of X-ray free electron lasers (XFELs) is their seeding with microbunched electron beam. Several schemes leading to signific…
A Model for One-Dimensional Coherent Synchrotron Radiation including Short-Range Effects
Robert D. Ryne, Bruce Carlsten, Ji Qiang +1
A new model is presented for simulating coherent synchrotron radiation (CSR) in one dimension. The method is based on convolving an integrated Green function (IGF) with the longitu…
Description of modulated beam dynamics
Nikolai A. Yampolsky
General formalism for describing dynamics of modulated beams along linear beamlines is developed. We describe modulated beams with spectral distribution function which represents F…
Exploring Minimal Scenarios to Produce Transversely Bright Electron Beams Using the Eigen-Emittance Concept
Leanne D. Duffy, Kip A. Bishofberger, Bruce C. Carlsten +5
Next generation hard X-ray free electron lasers require electron beams with low transverse emittance. One proposal to achieve these low emittances is to exploit the eigen-emittance…
Controlling Electron-Beam Emittance Partitioning for Future X-Ray Light Sources
Nikolai Yampolsky, Bruce Carlsten, Robert Ryne +3
Motivated by the emittance requirements for future light sources, we show how longitudinal-transverse correlations can be introduced to create beams with large emittance asymmetry.…