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arXiv · 1604.01909

Rotating system for four-dimensional transverse rms-emittance measurements

C. Xiao·M. Maier·X. N. Du·P. Gerhard·L. Groening·S. Mickat·H. Vormann
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Abstract

Knowledge of the transverse four-dimensional beam rms-parameters is essential for applications that involve lattice elements that couple the two transverse degrees of freedom (planes). Of special interest is the removal of inter-plane correlations to reduce the projected emittances. A dedicated ROtating System for Emittance measurements (ROSE) has been proposed, developed, and successfully commissioned to fully determine the four-dimensional beam matrix. This device has been used at the High Charge injector (HLI) at GSI using a beam line which is composed of a skew quadrupole triplet, a normal quadrupole doublet, and ROSE. Mathematical algorithms, measurements, and results for ion beams of 83Kr13+ at 1.4 MeV/u are reported in this paper.

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C. Xiao, M. Maier, X. N. Du, P. Gerhard, L. Groening, S. Mickat, H. Vormann. 2016-04-07. Rotating system for four-dimensional transverse rms-emittance measurements. https://doi.org/10.1103/physrevaccelbeams.19.072802

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