SAXS and Scatter
SAXS and Scatter
SAXS and Scatter
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Correlation Function<br />
recalculate<br />
• displace particle by a small distance, ∆r<br />
• calculate how well the particle correlates with its previous self<br />
increase Δr<br />
Debye <strong>and</strong> Bueche (1947)<br />
Correlation Function<br />
ρ(r) =r 2 γ(r)<br />
Pair-distance Function<br />
γ(r)<br />
P(r)<br />
r, Å<br />
r, Å<br />
Maximum self-correlation occurs at r = 0<br />
Correlation decays to 0 at r > dmax<br />
l c , mean width of γ(r)<br />
l c = l2 ave<br />
l ave<br />
Thursday, August 1, 13
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