TABLE 2.

Positions of maximal intensity for an I(q) slice with φ = 5–10°

Sample	T (°C)	q0 (Å−1)	d = 2π/q0 (Å)	HWHM (Å−1)
DOPC*	25	1.39 ± 0.01	4.53 ± 0.03	0.16 ± 0.01
DOPC + 10% Chol	25	1.36	4.60	0.16
DOPC + 40% Chol	25	1.28	4.91	0.17
DPPC	45	1.39	4.52	0.15
DPPC + 10% Chol	45	1.40	4.50	0.15
DPPC + 15% Chol	45	1.37	4.58	0.14
DPPC + 25% Chol	45	1.38	4.56	0.14
DPPC + 40% Chol	45	1.35	4.66	0.16

For φ = 5–10°, absorption is 10% or less. These values are the same (±0.01) for a radial slice with φ = 10–15°, for which absorption is <5%.

^*Average values and standard deviations for data taken on three different samples (D = 59–61 Å).