SESANS

The Spin-Echo Small Angle Neutron Scattering option by insertion of angle labelling magnets.

SESANS will have two oppositely oriented precession regions before and after the sample with inclined field boundaries and will resolve scattering angles as small as ~ 10 microradians. The length scales will range from 30 nanometres to 30 micrometres. In this configuration, shown the figure, an analyser will be positioned in front of the detector, which will be at the direct beam. The setup requires broadband resonant radio-frequency flippers, which will be a further development (second generation) of those deployed with success on OffSpec.

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Polarized SANS

The Polarized Small Angle Neutron Scattering option.

SANS with polarization analysis: this “basic” configuration will yield detailed information about magnetic nanostructures and will also be used to separate coherent from incoherent scattering in soft matter investigations. The neutron beam will be polarised in the neutron guide by a supermirror cavity, optimized for a high degree of polarisation and transmission. The polarisation of the scattered beam will be analysed with a polarised 3He filter in combination with a highly efficient RF adiabatic flipper to be used as a to be used as a pi-flipper for broadband 1D polarization analysis.

 

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The clasical Small Angle Neutron Scattering option.

This instrument is the basis for all the Larmor Labelling options and fully developed by ISIS. It is in itself a very powerfull SANS instrument.

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