HOM analysis and design of its removal system for 3rd harmonic RF cavity in PLS

Pohang Accelerator Laboratory has prepared to SRF 3 rd harmonic cavity to increase beam lifetime and to damp orbit instability by lengthening electron bunch in PLS. The SRF cavity was developed and its vertical test was done already with success. Higher order modes were analyzed to optimize its perf...

Full description

Saved in:
Bibliographic Details
Main Authors: Sohn, Y.U., Choi, J., Park, I.S., Chun, M.H., Huang, J.Y., Ko, I.S.
Format: Conference Proceeding
Language:English
Subjects:
Brightness
Electron beams
Harmonic analysis
Particle beams
Radio frequency
Research and development
Shape
Stability
Storage rings
Superconducting magnets
Online Access:Request full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Pohang Accelerator Laboratory has prepared to SRF 3 rd harmonic cavity to increase beam lifetime and to damp orbit instability by lengthening electron bunch in PLS. The SRF cavity was developed and its vertical test was done already with success. Higher order modes were analyzed to optimize its performance in beam orbit. Most of them are not effective to electron beam, while the others have possibility to impact orbit stability. These harmful HOMs can be removed by HOM absorber installed in beam pipe.
ISSN:1944-4680
2152-9582
DOI:10.1109/PAC.2007.4441189