R&D programs based on various approaches, at BNL, FZ-Rossendorf, Beijing University and AES generate optimism that low emittance continuous wave operating SRF-guns and injectors will be available in the near future. This contribution covers present status of these programs and it presents recently proposed alternative approach for the SRF-gun design with thin lead spot as the photo-cathode for generation of electrons in a bulk niobium cavity operating at 2K.
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