Analysis of the radiofrequency dipole and quadrupole effects in a QW resonator

A.M. Porcellato, A. Battistella, G. Bisoffi, M. Cavenago
Conference Record of the 1991 IEEE Particle Accelerator Conference  
A convenient definition of the multipole coefficients of the accelerating fields produced by any resonator is given: the monopole term gives the transit time factor, the dipole gives a beam deflection, and the quadrupole perturbs the beam focusing; a notable relation holds for a Quarter Wave Resonator. Improving both the spatial resolution and the sensibility of the bead technique permits to determine these coefficients reliably; electronics stability is discussed. 2a A
doi:10.1109/pac.1991.164992 fatcat:ba5rzoijczdj5k56jcv4p2krxy