FOCUS - A HYBRID TOF-SPECTROMETER AT SINQ

The concept of the SINQ-time-of-flight (TOF) spectrometer FOCUS forese es a hybrid-TOF solution that combines a doubly focusing crystal monoc hromator with a Fermi-chopper. The spectrometer can be operated in tim e focusing (TF) and monochromatic focusing (MF) mode such that it can be optimised for quasielastic and inelastic scattering applications, r espectively. BS the use of two interchangeable monochromators (PG and MICA) access is provided to incident energies in the range 0.25 meV < E-i < 20 meV.