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Title: Foil focusing of relativistic electron beams

Abstract

When an intense relativistic electron beams (IREB) passes through a grounded metal foil, the transverse electric field due to the beam space charge is locally shorted out, and the beam is focused by the magnetic field of its current. The effect can be treated as focusing by a thin lens with first order aberration. Expressions for the focal length and aberration coefficient of the equivalent thin lens are developed in this note. These are then applied to practical examples representative of IREB research at Los Alamos National Laboratory.

Authors:
 [1]
  1. Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Publication Date:
Research Org.:
Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
Sponsoring Org.:
USDOE National Nuclear Security Administration (NNSA)
OSTI Identifier:
1406191
Report Number(s):
LA-UR-17-29832
DOE Contract Number:  
AC52-06NA25396
Resource Type:
Technical Report
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; intense relativistic electron beams; space charge; linear induction accelerators

Citation Formats

Ekdahl, Jr., Carl August. Foil focusing of relativistic electron beams. United States: N. p., 2017. Web. doi:10.2172/1406191.
Ekdahl, Jr., Carl August. Foil focusing of relativistic electron beams. United States. doi:10.2172/1406191.
Ekdahl, Jr., Carl August. Thu . "Foil focusing of relativistic electron beams". United States. doi:10.2172/1406191. https://www.osti.gov/servlets/purl/1406191.
@article{osti_1406191,
title = {Foil focusing of relativistic electron beams},
author = {Ekdahl, Jr., Carl August},
abstractNote = {When an intense relativistic electron beams (IREB) passes through a grounded metal foil, the transverse electric field due to the beam space charge is locally shorted out, and the beam is focused by the magnetic field of its current. The effect can be treated as focusing by a thin lens with first order aberration. Expressions for the focal length and aberration coefficient of the equivalent thin lens are developed in this note. These are then applied to practical examples representative of IREB research at Los Alamos National Laboratory.},
doi = {10.2172/1406191},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Thu Oct 26 00:00:00 EDT 2017},
month = {Thu Oct 26 00:00:00 EDT 2017}
}

Technical Report:

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