Quadrupolar mode measurements for space charge dominated beams
Abstract
On-line monitoring of beam quality requires non-invasive transverse phase space diagnostics. Emittance measurement is particularly challenging for high-intensity particle beams, since space charge complicates the beam dynamics during measurement. Quadrupolar mode measurements have been empirically shown to provide information about the beam emittance, but so far only for small relative space charge effects, where the results depend on a linear theory. We present a quadrupolar mode measurement for space charge dominated beams with unsplit tunes using multi-turn resonant excitation. Furthermore, results from experiments performed at the University of Maryland Electron Ring (UMER) are compared to both analytic and numerical analysis of the rms envelope equations.
- Authors:
-
[1];
- Univ. of Maryland, College Park, MD (United States). Institute for Research in Electronics and Applied Physics
- Publication Date:
- Research Org.:
- Univ. of Maryland, College Park, MD (United States). Institute for Research in Electronics and Applied Physics
- Sponsoring Org.:
- USDOE Office of Science (SC), High Energy Physics (HEP); U.S. Department of the Navy, Office of Naval Research (ONR). Joint Technology Office
- OSTI Identifier:
- 1459613
- Alternate Identifier(s):
- OSTI ID: 1460140
- Grant/Contract Number:
- SC0010301
- Resource Type:
- Accepted Manuscript
- Journal Name:
- Physics of Plasmas
- Additional Journal Information:
- Journal Volume: 25; Journal Issue: 7; Journal ID: ISSN 1070-664X
- Publisher:
- American Institute of Physics (AIP)
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 43 PARTICLE ACCELERATORS; Quadrupolar; Diagnostics; Beam envelope; Space charge; High intensity; Emittance
Citation Formats
Stem, William Durst, Beaudoin, Brian L., Haber, Irving, and Koeth, Timothy W. Quadrupolar mode measurements for space charge dominated beams. United States: N. p., 2018.
Web. doi:10.1063/1.5026677.
Stem, William Durst, Beaudoin, Brian L., Haber, Irving, & Koeth, Timothy W. Quadrupolar mode measurements for space charge dominated beams. United States. https://doi.org/10.1063/1.5026677
Stem, William Durst, Beaudoin, Brian L., Haber, Irving, and Koeth, Timothy W. Fri .
"Quadrupolar mode measurements for space charge dominated beams". United States. https://doi.org/10.1063/1.5026677. https://www.osti.gov/servlets/purl/1459613.
@article{osti_1459613,
title = {Quadrupolar mode measurements for space charge dominated beams},
author = {Stem, William Durst and Beaudoin, Brian L. and Haber, Irving and Koeth, Timothy W.},
abstractNote = {On-line monitoring of beam quality requires non-invasive transverse phase space diagnostics. Emittance measurement is particularly challenging for high-intensity particle beams, since space charge complicates the beam dynamics during measurement. Quadrupolar mode measurements have been empirically shown to provide information about the beam emittance, but so far only for small relative space charge effects, where the results depend on a linear theory. We present a quadrupolar mode measurement for space charge dominated beams with unsplit tunes using multi-turn resonant excitation. Furthermore, results from experiments performed at the University of Maryland Electron Ring (UMER) are compared to both analytic and numerical analysis of the rms envelope equations.},
doi = {10.1063/1.5026677},
journal = {Physics of Plasmas},
number = 7,
volume = 25,
place = {United States},
year = {Fri Jul 13 00:00:00 EDT 2018},
month = {Fri Jul 13 00:00:00 EDT 2018}
}
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