Abstract:We propose a method for emittance measurement of an axisymmetric high-current electron beam confined by a longitudinal magnetic field. In this method, the beam current is measured by a multi-layer Faraday cup to obtain the radial beam current profile using Abel inversion. Based on the theory of a beam in a uniform focusing channel, the transverse electron temperature is uniquely defined by the shape of the current density profile. Therefore, measuring the current density profile enables the determination of th… Show more
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