NG7 30-m Small Angle Neutron Scattering Instrument

Focusing Refractive Optics for SANS

Focusing Lens Geometry:

By using lenses to image the source aperture at the detector, the intensity on the sample varies with θ_min squared, and is nearly independent of the size of lens (i.e. sample) aperture.

Pinhole Collimation Geometry    |    Focusing Lens Geometry   |    Neutrons on Sample versus Q_min
Lens Installation    |    Sans from Arborescent* Graft Polymers

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Last modified 27-July-2005