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Persistent URL http://purl.org/net/epubs/work/10855728
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Record Id 10855728
Title High voltage DC photoinjector development at Daresbury Laboratory
Abstract STFC Daresbury Laboratory currently operates a 350 kV DC electron gun using caesiated GaAs photocathodes to provide bunches up to a nominal 80 pC up to an average current of 6.5 mA. This serves as the injector for ALICE (Accelerators and Lasers In Combined Experiments) - a 35 MeV energy recovery linac based on 1.3 GHz superconducting RF technology. An upgrade to the electron gun is under way to incorporate a three-chamber photocathode preparation facility forming a load-lock with the gun chamber. This will allow rapid changeover of photocathodes without breaking the gun vacuum and improve photocathode activation procedure. Initial results of the activation in the commissioned preparation facility have produced quantum efficiencies of up to 15 % at 635 nm. The status of the project and ongoing research and development is presented here.
Organisation ASTeC , ASTeC-AP , ASTeC-VS , STFC
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Language English (EN)
Type Details URI(s) Local file(s) Year
Report ICFA Beam Dynamics Newsletter. 2010. 2010 ICFA Beam Dy…1, pages 161-170.pdf 2010