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Bunch Length Measurements with Passive Harmonic Cavities for Non-Uniform Fill Patterns in a 100 MHz RF

Olsson, Teresia LU ; Leemann, Simon LU and Lilja, Per LU (2016) 7th International Particle Accelerator Conference, IPAC 2016 p.2918-2921
Abstract
The MAX IV facility includes two storage rings operated at 1.5 GeV and 3 GeV, which are both designed to operate with a uniform, multibunch fill pattern. Both rings have a 100 MHz RF system and employ passive harmonic cavities to damp instabilities and increase Touschek lifetime. Recently, a discussion on timing modes at the MAX IV storage rings has been initiated by the user community. Creating opportunities for timing experiments implies operating the rings with other fill patterns than the planned multibunch mode. Such operation can, however, cause transient effects in the passive harmonic cavities which affect the performance of the machine. It is therefore of interest to study the effect on the beam when operating with non-uniform... (More)
The MAX IV facility includes two storage rings operated at 1.5 GeV and 3 GeV, which are both designed to operate with a uniform, multibunch fill pattern. Both rings have a 100 MHz RF system and employ passive harmonic cavities to damp instabilities and increase Touschek lifetime. Recently, a discussion on timing modes at the MAX IV storage rings has been initiated by the user community. Creating opportunities for timing experiments implies operating the rings with other fill patterns than the planned multibunch mode. Such operation can, however, cause transient effects in the passive harmonic cavities which affect the performance of the machine. It is therefore of interest to study the effect on the beam when operating with non-uniform fill patterns. This paper presents bunch length measurements at the 100 MHz MAX II storage ring for fill patterns with gaps. The purpose of the measurements was to evaluate the employed measurement method and simulation codes for future studies of various alternate fill patterns in the MAX IV storage rings. (Less)
Please use this url to cite or link to this publication:
author
; and
organization
publishing date
type
Chapter in Book/Report/Conference proceeding
publication status
published
subject
host publication
IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference
article number
WEPOW037
pages
4 pages
publisher
JACoW Publishing
conference name
7th International Particle Accelerator Conference, IPAC 2016
conference location
Busan, Korea, Republic of
conference dates
2016-05-08 - 2016-05-13
external identifiers
  • scopus:85015273908
ISBN
978-3-95450-147-2
language
English
LU publication?
yes
id
0ac99f2b-fce0-43d8-8111-74dcd3461217
alternative location
http://accelconf.web.cern.ch/AccelConf/ipac2016/papers/wepow037.pdf
date added to LUP
2016-08-31 15:35:00
date last changed
2022-03-01 03:21:42
@inproceedings{0ac99f2b-fce0-43d8-8111-74dcd3461217,
  abstract     = {{The MAX IV facility includes two storage rings operated at 1.5 GeV and 3 GeV, which are both designed to operate with a uniform, multibunch fill pattern. Both rings have a 100 MHz RF system and employ passive harmonic cavities to damp instabilities and increase Touschek lifetime. Recently, a discussion on timing modes at the MAX IV storage rings has been initiated by the user community. Creating opportunities for timing experiments implies operating the rings with other fill patterns than the planned multibunch mode. Such operation can, however, cause transient effects in the passive harmonic cavities which affect the performance of the machine. It is therefore of interest to study the effect on the beam when operating with non-uniform fill patterns. This paper presents bunch length measurements at the 100 MHz MAX II storage ring for fill patterns with gaps. The purpose of the measurements was to evaluate the employed measurement method and simulation codes for future studies of various alternate fill patterns in the MAX IV storage rings.}},
  author       = {{Olsson, Teresia and Leemann, Simon and Lilja, Per}},
  booktitle    = {{IPAC 2016 - Proceedings of the 7th International Particle Accelerator Conference}},
  isbn         = {{978-3-95450-147-2}},
  language     = {{eng}},
  pages        = {{2918--2921}},
  publisher    = {{JACoW Publishing}},
  title        = {{Bunch Length Measurements with Passive Harmonic Cavities for Non-Uniform Fill Patterns in a 100 MHz RF}},
  url          = {{http://accelconf.web.cern.ch/AccelConf/ipac2016/papers/wepow037.pdf}},
  year         = {{2016}},
}