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

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 language	English
Pages (from-to)	3797-3802
Number of pages	6
Journal	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms
Volume	266
Issue number	17
DOIs	https://doi.org/10.1016/j.nimb.2008.04.020
Publication status	Published - Sep 2008

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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10.1016/j.nimb.2008.04.020

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

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.",

keywords = "Beam profile monitor, Optical diffraction radiation, Pre-wave zone",

author = "Potylitsyn, {A. P.}",

year = "2008",

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doi = "10.1016/j.nimb.2008.04.020",

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journal = "Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms",

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AB - 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.

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KW - Pre-wave zone

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