Geometric efficiency of a two-stage fully absorbing collimation system in single-pass linacs

Geometric efficiency of a two-stage fully absorbing collimation system in single-pass linacs

Collimators are commonly used in particle accelerators to prevent particles traveling at large amplitudes from hitting the vacuum chamber. We derive here, for a single-pass linac, a one-dimensional analytical expression for the efficiency of a two-stage fully absorbing collimation system (CS), based...

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Main Author: S. Di Mitri
Format: Article
Language:English
Published: American Physical Society 2010-05-01
Series:Physical Review Special Topics. Accelerators and Beams
Online Access:http://doi.org/10.1103/PhysRevSTAB.13.052801
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spelling doaj-6f42c33b7d69471cba73e0e0daecd2d52020-11-25T02:46:56ZengAmerican Physical SocietyPhysical Review Special Topics. Accelerators and Beams1098-44022010-05-0113505280110.1103/PhysRevSTAB.13.052801Geometric efficiency of a two-stage fully absorbing collimation system in single-pass linacsS. Di MitriCollimators are commonly used in particle accelerators to prevent particles traveling at large amplitudes from hitting the vacuum chamber. We derive here, for a single-pass linac, a one-dimensional analytical expression for the efficiency of a two-stage fully absorbing collimation system (CS), based on the CS geometrical and optical properties only. We show that, in the presence of physical space or optics constraints, the best betatron phase advance in between the first and the second collimation stage may differ from the usually prescribed π/2. The analytically computed collimation efficiency is then compared to particle tracking results.http://doi.org/10.1103/PhysRevSTAB.13.052801
collection DOAJ
language English
format Article
sources DOAJ
author S. Di Mitri
spellingShingle S. Di Mitri
Geometric efficiency of a two-stage fully absorbing collimation system in single-pass linacs
Physical Review Special Topics. Accelerators and Beams
author_facet S. Di Mitri
author_sort S. Di Mitri
title Geometric efficiency of a two-stage fully absorbing collimation system in single-pass linacs
title_short Geometric efficiency of a two-stage fully absorbing collimation system in single-pass linacs
title_full Geometric efficiency of a two-stage fully absorbing collimation system in single-pass linacs
title_fullStr Geometric efficiency of a two-stage fully absorbing collimation system in single-pass linacs
title_full_unstemmed Geometric efficiency of a two-stage fully absorbing collimation system in single-pass linacs
title_sort geometric efficiency of a two-stage fully absorbing collimation system in single-pass linacs
publisher American Physical Society
series Physical Review Special Topics. Accelerators and Beams
issn 1098-4402
publishDate 2010-05-01
description Collimators are commonly used in particle accelerators to prevent particles traveling at large amplitudes from hitting the vacuum chamber. We derive here, for a single-pass linac, a one-dimensional analytical expression for the efficiency of a two-stage fully absorbing collimation system (CS), based on the CS geometrical and optical properties only. We show that, in the presence of physical space or optics constraints, the best betatron phase advance in between the first and the second collimation stage may differ from the usually prescribed π/2. The analytically computed collimation efficiency is then compared to particle tracking results.
url http://doi.org/10.1103/PhysRevSTAB.13.052801
work_keys_str_mv AT sdimitri geometricefficiencyofatwostagefullyabsorbingcollimationsysteminsinglepasslinacs
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