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Description
The transverse emittance of a charged particle beam is an important figure of merit for many accelerator applications. One of the easiest to implement methods to determine the transverse emittance is the phase advance scan method using a focusing element and a screen. This method has been shown to work well in the thermal regime. In the space charge dominated laminar flow regime, however, the scheme becomes difficult to apply because of the lack of a closed description of the beam envelope including space charge effects. Furthermore, certain mathematical, as well as beamline design criteria must be met in order to ensure accurate results. This work shows that it is possible to analyze phase advance scan data using a neural network (NN), even in setups, which do not meet these criteria.
