Skip to main content

Lund University Publications

LUND UNIVERSITY LIBRARIES

Investigation to improve efficiency and availability in control and operation of superconducting cavity at ESS

Zeng, Rihua LU and Troeng, Olof LU (2016) 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams, HB 2016 In HB 2016 - Proceedings of the 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams p.474-479
Abstract

The higher efficiency and higher availability (fault-tolerant oriented) of RF & Cavity system (with beam loading) to operate at, the more dynamic details needs to be identified, so as to have the abilities (a) to work at nonlinearities, (b) to work close to limitation, and (c) to change operation point quickly and correctly. Dynamic detail identifications rely heavily on high precision measuring and characterizing basic cavity parameters (QL, R/Q, dynamic detuning, phase and amplitude) and system behaviours under beam-RF-cavity interactions. It is especially challenging to characterize these dynamics under varying operating points or environment. Advanced technologies in LLRF and ICS providing real time/online... (More)

The higher efficiency and higher availability (fault-tolerant oriented) of RF & Cavity system (with beam loading) to operate at, the more dynamic details needs to be identified, so as to have the abilities (a) to work at nonlinearities, (b) to work close to limitation, and (c) to change operation point quickly and correctly. Dynamic detail identifications rely heavily on high precision measuring and characterizing basic cavity parameters (QL, R/Q, dynamic detuning, phase and amplitude) and system behaviours under beam-RF-cavity interactions. It is especially challenging to characterize these dynamics under varying operating points or environment. Advanced technologies in LLRF and ICS providing real time/online characterizing will be the key enablers for addressing such challenges. However, to be successful, the deployment of these technologies must be embedded within local conditions taking into account available resources, existing hardware/software structures and operation modes. Several improvement approaches will be introduced. For example, 15% or more energy efficiency improvement at ESS will be obtained by reduction of power overhead and optimization of operation.

(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
HB 2016 - Proceedings of the 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams
series title
HB 2016 - Proceedings of the 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams
pages
6 pages
publisher
JACoW Publishing
conference name
57th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams, HB 2016
conference location
Malmo, Sweden
conference dates
2016-07-03 - 2016-07-08
external identifiers
  • scopus:85081099195
ISBN
9783954501854
language
English
LU publication?
yes
id
85e12eba-749b-4cda-8eb0-a4db6a0991c8
alternative location
https://accelconf.web.cern.ch/hb2016/papers/tham4x01.pdf
date added to LUP
2022-04-04 09:45:25
date last changed
2022-04-04 17:00:59
@inproceedings{85e12eba-749b-4cda-8eb0-a4db6a0991c8,
  abstract     = {{<p>The higher efficiency and higher availability (fault-tolerant oriented) of RF &amp; Cavity system (with beam loading) to operate at, the more dynamic details needs to be identified, so as to have the abilities (a) to work at nonlinearities, (b) to work close to limitation, and (c) to change operation point quickly and correctly. Dynamic detail identifications rely heavily on high precision measuring and characterizing basic cavity parameters (Q<sub>L</sub>, R/Q, dynamic detuning, phase and amplitude) and system behaviours under beam-RF-cavity interactions. It is especially challenging to characterize these dynamics under varying operating points or environment. Advanced technologies in LLRF and ICS providing real time/online characterizing will be the key enablers for addressing such challenges. However, to be successful, the deployment of these technologies must be embedded within local conditions taking into account available resources, existing hardware/software structures and operation modes. Several improvement approaches will be introduced. For example, 15% or more energy efficiency improvement at ESS will be obtained by reduction of power overhead and optimization of operation.</p>}},
  author       = {{Zeng, Rihua and Troeng, Olof}},
  booktitle    = {{HB 2016 - Proceedings of the 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams}},
  isbn         = {{9783954501854}},
  language     = {{eng}},
  month        = {{08}},
  pages        = {{474--479}},
  publisher    = {{JACoW Publishing}},
  series       = {{HB 2016 - Proceedings of the 57th ICFA Advanced Beam Dynamics Workshop on High-Intensity, High Brightness and High Power Hadron Beams}},
  title        = {{Investigation to improve efficiency and availability in control and operation of superconducting cavity at ESS}},
  url          = {{https://accelconf.web.cern.ch/hb2016/papers/tham4x01.pdf}},
  year         = {{2016}},
}