Imaging of optical diffraction radiation in pre-wave zone and spatial resolution of non-invasive beam size diagnostics

Research output: Contribution to journalArticle

Abstract

A simple model to evaluate the imaging shape of an optical diffraction radiation (ODR) source focused by a lens on a detector, taking into account the pre-wave zone effect has been developed. The characteristic size of an ODR image does not depend on the Lorentz-factor and is defined by the impact-parameter (minimal distance between a particle trajectory and ODR target edge) only. Using the ODR intensity component polarized parallel to the target edge it is possible to significantly improve the spatial resolution of an ODR beam profile monitor.

Original languageEnglish
Pages (from-to)3797-3802
Number of pages6
JournalNuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume266
Issue number17
DOIs
Publication statusPublished - Sep 2008

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Keywords

  • Beam profile monitor
  • Optical diffraction radiation
  • Pre-wave zone

ASJC Scopus subject areas

  • Surfaces, Coatings and Films
  • Instrumentation
  • Surfaces and Interfaces

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