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Title: Unavoidable trapped mode in the interaction region of colliding beams

Abstract

Here, we discuss the nature of the electromagnetic fields excited by the beams in the beam pipe of an interaction region. In trying to find an optimum geometry for this region with a minimum of electromagnetic wave excitation, we have discovered one mode, which remains even in a very smooth geometry. This mode has a longitudinal electrical component and can be easily excited by the beam. By analyzing the structure of this mode we have found a way to absorb this mode. The work was done in connection with a proposal for a future electron-positron collider.

Authors:
 [1];  [1];  [2];  [2];  [2]
  1. SLAC National Accelerator Lab., Menlo Park, CA (United States)
  2. European Organization for Nuclear Research (CERN), Geneva (Switzerland)
Publication Date:
Research Org.:
SLAC National Accelerator Lab., Menlo Park, CA (United States)
Sponsoring Org.:
USDOE
OSTI Identifier:
1409877
Alternate Identifier(s):
OSTI ID: 1419929
Grant/Contract Number:
AC02-76SF00515
Resource Type:
Journal Article: Published Article
Journal Name:
Physical Review Accelerators and Beams
Additional Journal Information:
Journal Volume: 20; Journal Issue: 11; Journal ID: ISSN 2469-9888
Publisher:
American Physical Society (APS)
Country of Publication:
United States
Language:
English
Subject:
43 PARTICLE ACCELERATORS; Beam impedance; Accelerators & Beams

Citation Formats

Novokhatski, Alexander, Sullivan, Michael, Belli, Eleonora, Gil Costa, Miguel, and Kersevan, Roberto. Unavoidable trapped mode in the interaction region of colliding beams. United States: N. p., 2017. Web. doi:10.1103/PhysRevAccelBeams.20.111005.
Novokhatski, Alexander, Sullivan, Michael, Belli, Eleonora, Gil Costa, Miguel, & Kersevan, Roberto. Unavoidable trapped mode in the interaction region of colliding beams. United States. doi:10.1103/PhysRevAccelBeams.20.111005.
Novokhatski, Alexander, Sullivan, Michael, Belli, Eleonora, Gil Costa, Miguel, and Kersevan, Roberto. Wed . "Unavoidable trapped mode in the interaction region of colliding beams". United States. doi:10.1103/PhysRevAccelBeams.20.111005.
@article{osti_1409877,
title = {Unavoidable trapped mode in the interaction region of colliding beams},
author = {Novokhatski, Alexander and Sullivan, Michael and Belli, Eleonora and Gil Costa, Miguel and Kersevan, Roberto},
abstractNote = {Here, we discuss the nature of the electromagnetic fields excited by the beams in the beam pipe of an interaction region. In trying to find an optimum geometry for this region with a minimum of electromagnetic wave excitation, we have discovered one mode, which remains even in a very smooth geometry. This mode has a longitudinal electrical component and can be easily excited by the beam. By analyzing the structure of this mode we have found a way to absorb this mode. The work was done in connection with a proposal for a future electron-positron collider.},
doi = {10.1103/PhysRevAccelBeams.20.111005},
journal = {Physical Review Accelerators and Beams},
number = 11,
volume = 20,
place = {United States},
year = {Wed Nov 22 00:00:00 EST 2017},
month = {Wed Nov 22 00:00:00 EST 2017}
}

Journal Article:
Free Publicly Available Full Text
Publisher's Version of Record at 10.1103/PhysRevAccelBeams.20.111005

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