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ucph>Tommy at 19:18, 1 September 2019

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'''Co-authors: Jakob Kirkensgaard and Lise Arleth, University of Copenhagen, Niels Bohr Institute'''

<figure id="fig:Ursula1">[[File:sans_diffract.jpg|thumb|400px|<caption>Illustration of small-angle scattering signal and diffraction peaks in the same data.</caption>]]</figure>
Elastic neutron scattering, or ''neutron diffraction'', was first used to reveal the crystal structure of materials, as will be presented in the page on [[Diffraction from crystals]]. First, however, we consider the conceptually simpler - but historically later developed - field of (elastic) small angle neutron scattering (SANS), which provides information on the size and shape of particles on length scales from ~1 nm to ~1000 nm.

As we shall see later, scattering at small angles - or small values of the scattering vector, \(q\) - is a signature of larger objects, while scattering at larger \(q\)-values probes the atomic distance. This is illustrated in <xr id="fig:Ursula1">Figure %i</xr>.
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= [[Applications of SANS in nanoscience]] =

{{:Applications of SANS in nanoscience}}


= [[The neutron scattering cross section from nano-sized particles]] =

{{:The neutron scattering cross section from nano-sized particles}}


= [[Useful model-free approximations in SANS]] =

{{:Useful model-free approximations in SANS}}


= [[Small-angle scattering instruments]] =

{{:Small-angle scattering instruments}}


 

[[Instrumentation|←]]   Previous page: [[Instrumentation]] 
[[Exercises in Small angle neutron scattering|→]]   Exercises: [[Exercises in Small angle neutron scattering]] 
[[Neutron reflectivity|→]]   Next page: [[Neutron reflectivity]]

Small angle neutron scattering, SANS - Revision history

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ucph>Tommy at 19:18, 1 September 2019