Superconducting accelerator cavities on a large scale

Large-scale construction of superconducting accelerator cavities is now is progress at several laboratories around the world. KEK (Japan National Laboratory for High Energy Physics) completed 32 five-cell niobium 508-MHz cavities for TRISTAN in the autumn of 1989, and has an operating experience of many thousands hours with electron and positron beams. CEBAF (Continuous Electron Beam Accelerator Facility), CERN (Conseil European pour le Recherche Nucleaire), and DESY (Deutsches Electonica-Synchrotron) are also building superconducting cavities on a large scale, and they are supposed to start operation in the near future. Superconducting cavities are also being considered for use in the accelerators for a B-factory or linear colliders. These projects are described and some of the problems associated with large-scale cavity production are discussed.<
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