CEBAF superconducting spectrometer design

The CEBAF (Continuous Electron Beam Accelerator Facility) Experimental Nuclear Physics Program is based on three independent facilities, each with unique capabilities. Hall A consists of a pair of high-resolution spectrometers (HRSs), hall B features a large acceptance spectrometer (LAS), and hall C will have a high-acceptance, high-energy electron spectrometer and matching special-purpose hadron spectrometer. The authors demonstrate that the performance and operational requirements of these devices can be met effectively through the use of superconducting devices. The physics requirements and the rational basis for design selection are discussed. An analysis that supports the cost-effectiveness of the selected design is presented. The cryogenic system is covered as well as the integration of the experimental hall cryogenic system and main CEBAF central helium refrigerator