Spin echo small angle neutron scattering
Measure of structures from around 20 to 2000 nm in size / From Wikipedia, the free encyclopedia
For broader coverage of this topic, see Small-angle scattering.
Spin echo small angle neutron scattering (SESANS) measures structures from around 20 to 2000 nm in size. The information is presented as a real-space (similar to g(r)) as opposed to a reciprocal space (q(r)) mapping. This can simplify the interpretation for some systems.[1] SESANS is useful for studying processes that occur over relatively long time scales, as data collection is often slow, but large length scales. Aggregation of colloids,[2] block copolymer micelles,[3] Stöber silica particles[4] being a prime examples.
The technique offers some advantages over SANS[5] but there are fewer SESANS instruments available than SANS instruments. Facilities for SESANS exist at TUDelft (Netherlands)[6] and Rutherford Appleton Laboratory (UK).[7]