Combined SANS–SESANS, from 1 nm to 0.1 mm in one instrument

Abstract

In many SANS experiments there are much longer length scales interesting to probe than the typical several hundred nanometre instrumental limit at present. These micron-size length scales can be probed using a method analogous to SESANS and MIEZE; a spatial modulation of the beam intensity with a Larmor precession technique. Measurements on a test instrument of this specific Larmor precession technique are in good agreement with the prediction. All components for this technique may fit in the collimator section of a conventional SANS instrument which makes the spectrometer sensitive for length scales from 1nm up till 100μm.