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Photoinjectors are increasingly the system of choice for
modern electron accelerators primarily because they can produce a
low-emittance beam. In particular, the performance of low-emittance rf
photoinjectors is crucial for SASE FELs. The requirements for the associated
injector laser systems have a number of common, yet critical, features
concerning intensity, uniformities, and stabilities that altogether can
approach the limit of what is commercially available. This Workshop is
designed to explore these features and to seek solutions to important
outstanding problems.
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