Lab Home | Phone | Search
Center for Nonlinear Studies  Center for Nonlinear Studies
 Colloquia Archive 
 Postdoc Seminars Archive 
 Quantum Lunch 
 CMS Colloquia 
 Q-Mat Seminars 
 Q-Mat Seminars Archive 
 Kac Lectures 
 Dist. Quant. Lecture 
 Ulam Scholar 
 Summer Research 
 Past Visitors 
 History of CNLS 
 Maps, Directions 
 CNLS Office 
Monday, October 26, 2015
10:00 AM - 11:00 AM
CNLS Conference Room (TA-3, Bldg 1690)


Simulation of Laser Wakefield Acceleration for Past and Future Experiments at the Texas Petawatt

Kathleen Weichman
University of Texas at Austin

Laser wakefield acceleration (LWFA) produces fs-duration GeV electron bunches in one-thousandth the accelerating distance of a conventional RF accelerator. Increasing the total charge injected into and accelerated by the wakefield while preserving the quasi-monoenergetic nature of electron bunches is key to the future use of LWFA as a source of ultrashort hard X-rays for imaging applications. Experiments at the Texas Petawatt Laser Facility produced significantly more accelerated charge when the transverse laser intensity profile exhibited two well-defined hot spots than when the laser profile had only a single hot spot. I will discuss VORPAL particle-in-cell simulations of laser wakefield acceleration using two-Gaussian laser pulses fit to intensity data from previous experiments as well as plans for an upcoming experiment to implement a Faraday rotation imaging technique and to produce MeV X-rays via Compton backscattering.

Host: Gian Luca Delzanno