Abstract

The 500 MeV electron-scattering facility, designed and built in conjunction with the 500 MeV, 2.5% duty factor electron linear accelerator (MEA), has been completed. It allows high-resolution (1 × 10 −4) single-arm (e,e′) experiments with a QDD spectrometer and single-arm hadron detection [( γ, π) and (γ,p) reactions] with a large solid angle (17 msr) QDQ spectrometer. With both specrometers coincidence experiments (e,e′ x) can be performed with a 225 keV missing energy resolution and a 1 ns timing resolution. A comprehensive description is given of the beam-handling system, spectrometers, detection system, data handling techniques and other instrumentation. Finally, test results obtained at energies ranging from 70 to 460 MeV are presented.

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