Title :
Measurements of magnet vibrations at the Advanced Photon Source
Author_Institution :
Budker INP, Novosibirsk, Russia
Abstract :
This article presents results of ground motion and magnet vibrations measurements at the Advanced Photon Source. The experiments were done over a frequency range of 0.1-100 Hz. Spectral power densities of vertical and horizontal motions of the APS hall floor and quadrupoles on regular supports were obtained. Magnet vibrations induced by designed cooling water flow and spectral characteristics of spatial correlation of the quadrupole vibrations at different sectors of the ring were also investigated. Amplitudes of the measured vibrations are compared with quad jitter tolerances in the APS
Keywords :
accelerator magnets; electromagnets; electron accelerators; jitter; particle beam diagnostics; particle beam dynamics; particle beam stability; storage rings; vibration measurement; 0.1 to 100 Hz; APS hall floor; Advanced Photon Source; cooling water flow; ground motion; horizontal motion; magnet vibrations measurements; quad jitter tolerances; quadrupole vibrations; quadrupoles; spatial correlation; spectral characteristics; spectral power densities; vertical motion; Extraterrestrial measurements; Floors; Frequency; Indium phosphide; Jitter; Motion measurement; Positrons; Structural beams; Synchrotrons; Vibration measurement;
Conference_Titel :
Particle Accelerator Conference, 1995., Proceedings of the 1995
Print_ISBN :
0-7803-2934-1
DOI :
10.1109/PAC.1995.505476
