LOM and HOM damping study in a superconducting deflecting cavity for ALS at LBNL

Superconducting deflecting cavities can be used in synchrotron light source to generate subpicosecond X-ray pulses while the impedance of the lower order modes （LOM） and higher order modes （HOM） in the cavity should be kept below an accepted level to avoid beam instability. These modes can be damped...

Full description

Saved in:
Bibliographic Details
Published inChinese physics C Vol. 32; no. 3; pp. 205 - 208
Main Author 施嘉儒 陈怀璧 唐传祥 郑曙昕 Derun Li
Format Journal Article
LanguageEnglish
Published United States IOP Publishing 01.03.2008
Department of Engineering Physics, Tsinghua University, Beijing 100084, China%Lawrence Berkeley National Lahoratory, CA 94720, USA
Subjects
CONDENSED MATTER PHYSICS, SUPERCONDUCTIVITY AND SUPERFLUIDITY
PARTICLE ACCELERATORS
X射线脉冲
低序模
偏转模槽
高序模
impedance calculation
deflecting cavity
HOM damping2007-5-18
lower order mode
Online AccessGet full text
ISSN1674-1137
0254-3052
2058-6132
DOI10.1088/1674-1137/32/3/009

Cover

More Information
Summary:Superconducting deflecting cavities can be used in synchrotron light source to generate subpicosecond X-ray pulses while the impedance of the lower order modes （LOM） and higher order modes （HOM） in the cavity should be kept below an accepted level to avoid beam instability. These modes can be damped by adding waveguide on beam pipe. Detailed simulation of Q in CST Microwave Studio is introduced and experiment results on an aluminum model cavity with damping waveguide are reported to make a comparison.
Bibliography:O441.1
deflecting cavity; lower order mode; impedance calculation; HOM damping
lower order mode
HOM damping
impedance calculation
11-5641/O4
deflecting cavity
National Natural Science Foundation of China (NSFC)
AC02-05CH11231
USDOE Office of Science (SC)
ISSN:1674-1137
0254-3052
2058-6132
DOI:10.1088/1674-1137/32/3/009