Physics
Scientific paper
Nov 1998
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1998aipc..448..233f&link_type=abstract
Workshop on space charge physics in high intensity hadron rings. AIP Conference Proceedings, Volume 448, pp. 233-244 (1998).
Physics
4
Synchrotrons, Beam Dynamics, Collective Effects And Instabilities, Beam Handling, Beam Transport
Scientific paper
A micromap approach to space charge is presented as a concept easily implemented in a computer code. A map of arbitrary length is found to be a suitable tool to include space charge by means of a kick approximation. We adopt space charge description where a transverse elliptic particle symmetry is assumed, and all analysis is carried out in a coasting beam approximation. This approach is particularly useful to investigate the single particle dynamics when the working point of a machine lies in a resonance driven by a skew quadrupole. Since the improvement of the multiturn injection efficiency due to linear coupling is based mainly on the exchange of emittance between x- and y-planes, we have investigated the emittance exchange dynamics when space charge is not negligible. We found that a coherent effect of space charge improves the efficiency of the exchange with respect to the case of single particle emittance exchange with space charge neglected.
Franchetti Guido
Hofmann I.
Turchetti Giorgio
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