Velocity Selector

The new FLEXX velocity selector is designed to select 3 different, overlapping wavelength bands in order to cut out higher order scattering. 

These wavelength bands cover the ranges, Thermal (1.8 – 4.7 Ǻ), Intermediate (2.0 – 5.6 Ǻ) and High resolution (2.4 – 6.5 Ǻ).

The location of the velocity selector close to the cold source also helps reducing the background counts and dose at the instrument.