Author: Arias, T.
Paper Title Page
TUPA86 Simulations of Nanoblade Cathode Emissions with Image Charge Trapping for Yield and Brightness Analyses 535
 
  • J.I. Mann, G.E. Lawler, J.B. Rosenzweig, B. Wang
    UCLA, Los Angeles, California, USA
  • T. Arias, J.K. Nangoi
    Cornell University, Ithaca, New York, USA
  • S.S. Karkare
    Arizona State University, Tempe, USA
 
  Funding: National Science Foundation Grant No. PHY-1549132
Laser-in­duced field emis­sion from nanos­truc­tures as a means to cre­ate high bright­ness elec­tron beams has been a con­tin­u­ally grow­ing topic of study. Ex­per­i­ments using nanoblade emit­ters have achieved peak fields up­wards of 40 GV/m ac­cord­ing to semi-clas­si­cal analy­ses, beg­ging fur­ther the­o­ret­i­cal in­ves­ti­ga­tion. A re­cent paper has pro­vided an­a­lyt­i­cal re­duc­tions of the com­mon semi-in­fi­nite Jel­lium sys­tem for pulsed in­ci­dent lasers. We uti­lize these re­sults to fur­ther un­der­stand the physics un­der­ly­ing elec­tron rescat­ter­ing-type emis­sions. We nu­mer­i­cally eval­u­ate this an­a­lyt­i­cal so­lu­tion to ef­fi­ciently pro­duce spec­tra and yield curves. The ef­fect of space-charge trap­ping at emis­sion may be sim­ply in­cluded by di­rectly mod­i­fy­ing these spec­tra. Ad­di­tion­ally, we use a self-con­sis­tent 1-D time-de­pen­dent Schrödinger equa­tion with an image charge po­ten­tial to study the same sys­tem as a more exact, but com­pu­ta­tion­ally costly, ap­proach. With these re­sults we may fi­nally in­ves­ti­gate the mean trans­verse en­ergy and beam bright­ness at the cath­ode in these ex­treme regimes.
 
DOI • reference for this paper ※ doi:10.18429/JACoW-NAPAC2022-TUPA86  
About • Received ※ 02 August 2022 — Revised ※ 08 August 2022 — Accepted ※ 10 August 2022 — Issue date ※ 03 September 2022
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