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Title: Trapping of charged and dust particles in the rf field of a superconducting cavity

Abstract

In this paper, we suggest an explanation of the observations of the glowing filaments in a superconducting cavity. We show that the motion of a charged particle in a multicell rf cavity and of a dust particle in a single-cell rf cavity can be stable. The analysis of stability is illustrated by numerical calculations. This effect may also explain the possible failure of high gradient tests of superconducting cavities, which are planned to be used in the linear accelerators for XFEL.

Authors:
 [1];  [1]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1465257
Alternate Identifier(s):
OSTI ID: 1475438
Grant/Contract Number:  
AC02-76SF00515; DE–AC02–76-SFO0515
Resource Type:
Published Article
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
Journal Volume: 21; Journal Issue: 8; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
47 OTHER INSTRUMENTATION

Citation Formats

Novokhatski, Alexander, and Heifets, Sam. Trapping of charged and dust particles in the rf field of a superconducting cavity. United States: N. p., 2018. Web. doi:10.1103/physrevaccelbeams.21.082003.
Novokhatski, Alexander, & Heifets, Sam. Trapping of charged and dust particles in the rf field of a superconducting cavity. United States. doi:10.1103/physrevaccelbeams.21.082003.
Novokhatski, Alexander, and Heifets, Sam. Mon . "Trapping of charged and dust particles in the rf field of a superconducting cavity". United States. doi:10.1103/physrevaccelbeams.21.082003.
@article{osti_1465257,
title = {Trapping of charged and dust particles in the rf field of a superconducting cavity},
author = {Novokhatski, Alexander and Heifets, Sam},
abstractNote = {In this paper, we suggest an explanation of the observations of the glowing filaments in a superconducting cavity. We show that the motion of a charged particle in a multicell rf cavity and of a dust particle in a single-cell rf cavity can be stable. The analysis of stability is illustrated by numerical calculations. This effect may also explain the possible failure of high gradient tests of superconducting cavities, which are planned to be used in the linear accelerators for XFEL.},
doi = {10.1103/physrevaccelbeams.21.082003},
journal = {Physical Review Accelerators and Beams},
number = 8,
volume = 21,
place = {United States},
year = {2018},
month = {8}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record
DOI: 10.1103/physrevaccelbeams.21.082003

Figures / Tables:

FIG. 1 FIG. 1: Trajectory in (x,y) plane with initial conditions corresponding to the equilibrium r(0) = req, see text. Parameters λ = 0.05, μ = 1.010−3, ωtmax = 500.

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Works referenced in this record:

Experimental studies of light emission phenomena in superconducting RF cavities
journal, December 2009

  • Anthony, P. L.; Delayen, J. R.; Fryberger, D.
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 612, Issue 1
  • DOI: 10.1016/j.nima.2009.08.084

Life of the dust macroparticles in storage rings
journal, June 2005

  • Heifets, S.; Qin, Qing; Zolotorev, M.
  • Physical Review Special Topics - Accelerators and Beams, Vol. 8, Issue 6
  • DOI: 10.1103/PhysRevSTAB.8.061002

A small particle model as a possible explanation of recently reported cavity lights
journal, February 2001

  • Fryberger, David
  • Nuclear Instruments and Methods in Physics Research Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 459, Issue 1-2
  • DOI: 10.1016/S0168-9002(00)00987-6

    Figures/Tables have been extracted from DOE-funded journal article accepted manuscripts.