Small-angle scattering

Small-angle scattering (SAS) is a scattering technique based on the deflection of a beam of particles away from the straight trajectory after it interacts with a sample. The deflection is small (0.1-10° for SANS) hence the name small-angle. SAS techniques can give information about the size, shape and orientation of a sample.

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SAS can refer to:

• Small angle neutron scattering (SANS)
• Small angle X-ray scattering (SAXS)
• Biological Small-Angle X-ray Scattering