Title :
Development of winged HOM damper for movable mask in KEKB
Author :
Suetsugu, Y. ; Kageyama, T. ; Takeuchi, Y. ; Shibata, K.
Author_Institution :
KEK, Tsukuba, Japan
Abstract :
In a high luminosity lepton machine such as the KEK B-factory (KEKB), the vacuum components are likely to be annoyed by intense higher order modes (HOM) due to the high beam currents. A winged HOM damper equipped with SiC HOM absorbers was developed to absorb unnecessary HOM, especially TE mode like HOM with a power of several kW. Four dampers were installed in the KEKB ring near movable masks and relieved heating of bellows and pump elements effectively at the beam current up to 1.5 A.
Keywords :
beam handling equipment; collimators; electron accelerators; particle beam dynamics; storage rings; KEK B-factory; KEKB; KEKB ring; SiC HOM absorbers; TE mode like HOM; beam current; high beam currents; high luminosity lepton machine; intense higher order modes; movable masks; vacuum components; winged HOM damper; Bellows; Colliding beam devices; Damping; Electron beams; Heat pumps; Laser excitation; Shock absorbers; Silicon carbide; Tellurium; Temperature dependence;
Conference_Titel :
Particle Accelerator Conference, 2003. PAC 2003. Proceedings of the
Print_ISBN :
0-7803-7738-9
DOI :
10.1109/PAC.2003.1289483
