Title :
Optimization of DAΦNE beam-beam performance
Author :
Biagini, M.E. ; Biscari, C. ; Ghigo, A. ; Guiducci, S. ; Mazzitelli, G. ; Milardi, C. ; Preger, M.A. ; Sannibale, F. ; Serio, M. ; Vignola, G. ; Zobov, M. ; Boscolo, M. ; Shatilov, D.
Author_Institution :
Lab. Nazionali di Frascati, Ist. Nazionale di Fisica Nucl., Frascati, Italy
Abstract :
The Φ-factory DAΦNE is an electron-positron collider with a design luminosity of 5.2*1032 cm-2 s-1 at the energy of the Φ-resonance (1020 MeV c.m.). In order to achieve the design luminosity high current multibunch electron and positron beams are stored in two separate rings and collide in two common interaction regions. Since the beams arrive at the interaction points from the different rings, a careful longitudinal timing and precise transverse scan of the colliding bunches are necessary to optimize the collider luminosity. In this paper we describe luminosity measurement techniques adopted in DAΦNE, discuss measures aimed at maximizing the luminosity in the beam-beam collisions and report the achieved results. The experimental data are compared with the results of numerical simulations
Keywords :
colliding beam accelerators; electron accelerators; electron beams; numerical analysis; optimisation; particle beam bunching; storage rings; Φ-factory; DAΦNE beam-beam performance; colliding bunches; common interaction regions; electron-positron collider; high current multibunch electron beams; interaction points; longitudinal timing; numerical simulations; optimization; positron beams; transverse scan; Charge measurement; Current measurement; Extraterrestrial measurements; Frequency measurement; Particle measurements; RF signals; Radio frequency; Size measurement; Solids; Spectral analysis;
Conference_Titel :
Particle Accelerator Conference, 1999. Proceedings of the 1999
Conference_Location :
New York, NY
Print_ISBN :
0-7803-5573-3
DOI :
10.1109/PAC.1999.794159
