SAXS and Scatter
SAXS and Scatter
SAXS and Scatter
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Power Law Relationship<br />
log vs. log plot<br />
if particle is compact, should see a plateau in q 2 • I(q) vs. q<br />
Porod<br />
q 4 · I(q) =constant<br />
Debye<br />
constant ≈ q 2 · I(q)<br />
if particle is compact, should see a plateau in q 4 • I(q) vs. q <strong>and</strong> q 4 • I(q) vs. q 4<br />
Defines a power law relationship!<br />
I(q) = 1<br />
q P · S′<br />
where 2 ≤ P ≤ 4<br />
lnI(q) =−P · ln(q)+ln(S ′ )<br />
Does this work?<br />
Does a plateau form?<br />
Can it be quantified?<br />
Thursday, August 1, 13
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