MAPS

This instrument is operational,in user programme .

Toby Perring and Andrew Walters analysing data from the Maps in

Toby Perring (back) and Andrew Walters analysing data from the Maps instrument
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Maps has changed the way the neutron community thinks about inelastic neutron scattering.

MAPS has been in operation since 2000. It was the first chopper spectrometer to employ a large array of position sensitive detectors, and the first to be designed solely for the purpose of measuring excitations in single crystals. It was originally envisaged that MAPS would be used predominantly for studies of high-energy excitations, using neutrons with incident energies in the epithermal range. Its use has evolved over time, and now a significant proportion of the beam time is devoted to single crystal excitation experiments involving the use of thermal neutrons, measuring excitations with energies as low as a few meV. In addition a recent trend has seen about one quarter of the beam time become devoted to catalysis and molecular spectroscopy experiments.

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