Application of Kick Minimization to the RTML 'Front End'
Application of Kick Minimization to the RTML 'Front End' The ''front end'' of the ILC RTML constitutes the sections of the RTML which are upstream of the first RF cavity of the first stage bunch compressor: specifically, the SKEW, COLL, TURN, SPIN, and EMIT sections. Although in principle it should be easy to transport the beam through these sections with low emittance growth, since the energy spread of the beam is relatively low, in practice it is difficult because of the large number of betatron wavelengths and strong focusing, especially in the TURN section. We report here on the use of the Kick Minimization Method for limiting the emittance growth in the ''front end'' of the RTML. Kick Minimization (KM) is a steering method which balances two optima: minimization of the RMS measured orbit on the BPMs (often called 1:1 steering), and minimization of the RMS corrector strength . The simulation program used for these studies is Lucretia .
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