[Casa] Fwd: CAS Seminar Tomorrow; Dallan Duffin Speaker

[Todd Satogata]

Available via Zoom for those that don't want to do the drive all
the way to ODU!

-------- Forwarded Message --------
Subject: 	CAS Seminar Tomorrow; Dallan Duffin Speaker
Date: 	Thu, 7 Nov 2024 08:33:46 -0500
From: 	Geoffrey A. Krafft <krafft at jlab.org>



Dear All,

There will be a *special CAS Seminar on Friday, November 8 at 12:30pm, EDT at CAS *(Center for Accelerator Science Conference Room, 1021 W. 47th Street, Norfolk, VA).

*Presenter:* Dallan Duffin
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*Title:* "A Novel 2D Implementation to Simulating Charged Particle Beams”
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*Abstract:* An increasing interest in high quality and high current electron beams necessitates a thorough understanding and prediction of coherent synchrotron radiation effects. The self-interaction of charged particles in a beam undergoing synchrotron motion is a physically significant process that is all too often computationally intensive with very little analytical results to rely on for the general case. We present a novel implementation to the numerical simulation of charged particle 
beams. The simulation is a self-consistent approach including the self-fields generated by the beam of which coherent synchrotron radiation effects are of primary interest. A particle- in-cell model is used where a planar beam sampled by point particles is deposited on an encompassing grid at each timestep. The electromagnetic fields are calculated on the grid using the retarded potentials according to causality. The electromagnetic forces from the fields are interpolated on each particle which 
in turn advance in time. The simulation is benchmarked against well-established results for coherent synchrotron radiation effects. A study into the transverse beam size effects on beam dynamics is performed as well as a proof of concept where the simulation is used by a genetic algorithm to optimize the design parameters of a beam lattice.

Zoom link: https://odu.zoom.us/j/3657122589


Just a reminder, we'll also have a CAS Seminar on Wednesday at
the usual time with Zach Caudell speaking. The Abstract and
zoom link will be distributed tomorrow.

Geoff Krafft
Balsa Terzic