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Normalized curves from SAXS at 15.8 keV and SANS for a 3% DNA solution in water containing 100 mM NaCl and 80 mM SrCl2. The SAXS data are converted to SANS contrast by multiplying the intensities by (Δρ/r0Kp)2 = 0.187, corresponding to Model 1. The continuous line is Eq. 4 where L = 200 Å, r = 11.1 Å, and I(0) = 1.76 cm−1.
