Description: We will describe a computer code based on an analysis for an emittance growth mechanism for electron beams in photoelectric injectors. The analysis leads to a generic injector design with a single external solenoid used for both focusing the beam and reducing the correlated emittance. The position of the solenoid is given by a complicated integral expression, depending on the accelerating gradient and rf focusing. The computer code described here integrates this expression and calculates the best solenoid lens position for a given phasing and field amplitudes of the accelerating cavities. 5 refs., 2 figs.
Date: January 1, 1989
Creator: Carlsten, B.E.
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