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TY - UNPB AU - Nghiem, P.A.P. AU - Chauvin, N. AU - Ducrot, L. AU - Simeoni, W. AU - Uriot, D. AU - Valette, M. ED - Schaa, Volker RW TI - Characterization of High Intensity Beams in Linacs J2 - Proc. of HB2018, Daejeon, Korea, 17-22 June 2018 C1 - Daejeon, Korea T2 - ICFA Advanced Beam Dynamics Workshop T3 - 61 LA - english AB - For high intensity linacs, beam particle distributions are in most cases far from Gaussian ones. Furthermore, the distribution shapes drastically differ from a linac to another and significantly change along a given linac. For those reasons, classical RMS parameters like beam envelope or emittance are no longer enough for characterizing the beam as soon as comparison or evolution of beam quality is in view. This paper presents three alternative ways to characterize more suitably a high intensity beam: 6D coordinates of the actual number of particles, projections of the distribution onto a few axes, RMS parameters of the core and of the halo separately. The advantages and drawbacks of each method are then discussed in terms of beam representativeness, data weight and physics insight. PB - JACoW Publishing CP - Geneva, Switzerland ER -