STUDIES OF EMITTANCE MEASUREMENT BY QUADRUPOLE VARIATION FOR THE IFMIF-EVEDA HIGH SPACE-CHARGE BEAM
2011
For the high-power (1 MW) beam of the IFMIFEVEDA prototype accelerator, emittance measurements at nearly full power are only possible in a non-interceptive way. The method of quadrupole variation is explored here. Due to the high space-charge regime, beam transport is strongly non-linear, and the classical matrix inversion is no more relevant. Inverse calculations using a multiparticle code is mandatory. In this paper, such emittance measurements are studied, aiming at checking its feasibility and evaluating its precision, taking into account the constraints of losses and quadrupole limitations.
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