Title :
Measurement of quadrupolar tune shifts after the reconstruction of the Photon Factory storage ring
Author :
Sakanaka, S. ; Mitsuhashi, T. ; Obina, T.
Author_Institution :
High Energy Accel. Res. Organ. (KEK), Tsukuba
Abstract :
The quadrupolar tune shift is a measure of the quadrupole component of wakefields in storage rings. By measuring both dipolar and quadrupolar tune shifts, we can estimate dipolar and quadrupolar kick factors independently. We carried out these measurements before and after the reconstruction of the photon factory storage ring at KEK. The results showed remarkable changes in the quadrupolar tune shifts in both horizontal and vertical planes, together with slight changes in the dipolar tune shifts.
Keywords :
electron accelerators; particle beam bunching; storage rings; wakefield accelerators; KEK; Photon Factory Storage ring; bunch current; dipolar kick factor; dipolar tune shift measurement; quadrupolar kick factor; quadrupolar tune shift measurement; wakefields; Band pass filters; Electrons; Energy measurement; Frequency; Impedance; Lenses; Production facilities; Spectral analysis; Storage rings; Strontium;
Conference_Titel :
Particle Accelerator Conference, 2007. PAC. IEEE
Conference_Location :
Albuquerque, NM
Print_ISBN :
978-1-4244-0916-7
DOI :
10.1109/PAC.2007.4439956
