Title :
Results from longitudinal impedance measurements in the Fermilab Tevatron
Author :
Jackson, G. ; Bogacz, A. ; Chou, P.J. ; Colestock, P. ; Harfoush, F. ; Lu, X. ; Ng, K.Y. ; Pellico, W. ; Sullivan, T. ; Wang, X.Q.
Author_Institution :
Fermi Nat. Accel. Lab., Batavia, IL, USA
Abstract :
The authors present the results from beam-based longitudinal impedance measurements in the Tevatron. Longitudinal transfer function scanning with high current unbunched beam at injection is the method used for determining the impedance at every revolution harmonic. Self-bunching instabilities and wave-mixing phenomena occurring during these transfer function measurements are also described. Methods to minimize noise and systematic errors are reviewed.<>
Keywords :
particle beam diagnostics; proton accelerators; synchrotrons; Tevatron; beam-based longitudinal impedance measurements; noise; systematic errors; transfer function measurements; unbunched beam; wave-mixing phenomena; DC generators; Frequency measurement; Impedance measurement; Laboratories; Monitoring; Radio frequency; Resonance; Scattering parameters; Transfer functions; Voltage;
Conference_Titel :
Particle Accelerator Conference, 1991. Accelerator Science and Technology., Conference Record of the 1991 IEEE
Conference_Location :
San Francisco, CA, USA
Print_ISBN :
0-7803-0135-8
DOI :
10.1109/PAC.1991.164765
