Author :
Drago, A. ; Alesini, D. ; Benedetti, G. ; Biagini, M. ; Biscari, C. ; Boni, R. ; Boscolo, M. ; Clozza, A. ; Monache, G. Delle ; Pirro, G. Di ; Gallo, A. ; Ghigo, A. ; Guiducci, S. ; Marcellini, F. ; Mazzitelli, G. ; Milardi, C. ; Pellegrino, L. ; Preger,
Author_Institution :
Lab. Nazionali di Frascati, Ist. Nazionale di Fisica Nucl., Frascati, Italy
Abstract :
The DAΦNE collider has been operating by filling 100 consecutive buckets out of the available 120 with a gap to avoid ion trapping in the electron beam. To reduce the effect of the parasitic crossings the crossing angle has been increased up to 29 mrad and the horizontal beta function at the interaction point lowered down to 1.7 m. Moreover both transverse and longitudinal feedbacks have been optimized for this more demanding mode of operation. Comparison between 100 and 50 bunches operation in 2002 runs is presented.
Keywords :
beam handling equipment; electron accelerators; particle beam bunching; particle beam diagnostics; synchrotrons; 100 bunch DAΦNE collider operation; crossing angle; electron beam; interaction point; ion trapping; longitudinal feedbacks; parasitic crossings; transverse feedbacks; Apertures; Detectors; Electrons; Frequency; Magnets; Nonlinear optics; Optical feedback; Optical saturation; Stimulated emission; Tuning;
