Burrill, A.; Anders, W.; Frahm, A.; Knobloch, J.; Neumann, A.; Ciovati, G.; Clemens, W.; Kneisel, P.; Turlington, L.: First Test Results of the BERLinPro 2-cell Booster Cavities. In: Stuart Henderson ... [Ed.] : Proceedings of the 6th International Particle Accelerator Conference - Proceedings of IPAC 2015, Richmond, VA, USA. JACoW, 2015. - ISBN 978-3-95450-168-7, p. WEPMA010/1-3
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The bERLinPro Energy Recovery Linac (ERL) is currently being built at Helmholtz-Zentrum Berlin in order to study the physics of operating a high current, 100 mA, 50 MeV ERL utilizing all SRF cavity technology. This machine will utilize three unique SRF cryomodules for the photoinjector, booster and linac cryomodules respectively. The focus of this paper will be on the cavities contained within the booster cryomodule. Here there will be three 2-cell SRF cavities, based on the original design by Cornell University, but optimized to meet the needs of the project. All of the cavity fabrication, processing and testing was carried out at Jefferson Laboratory where 4 cavities were produced and the 3 cavities with the best RF performance will be fitted with helium vessels for installation in the cryomodule. This paper will report on the test results of the cavities as measured in the vertical testing dewar at JLab after fabrication and again after outfitting with the helium vessels.