Table 2. Fit parameters corresponding to equation (2) for the five insulin crystals shown in Fig. 3 ▸ .

Crystal	I 0	I 1	βtot (kGy−1)	D* = 1/βtot (kGy)	I 1/(I 0 + I 1)	D 1/2 = D*ln[2I 0/(I 0 − I 1)]
Crystal 1	1.04 ± 0.04	0.236 ± 0.019	0.0067 ± 0.0006	149.1 ± 12.7	0.185 ± 0.013	141.7 ± 12.7
Crystal 2	1.06 ± 0.03	0.188 ± 0.018	0.0061 ± 0.0004	165.0 ± 11.4	0.150 ± 0.012	146.5 ± 10.7
Crystal 3	1.02 ± 0.05	0.249 ± 0.042	0.0055 ± 0.0008	182.0 ± 28.0	0.196 ± 0.028	177.0 ± 29.2
Crystal 4	1.03 ± 0.02	0.257 ± 0.006	0.0083 ± 0.0003	120.5 ± 4.2	0.199 ± 0.005	118.0 ± 4.3
Crystal 5	0.97 ± 0.03	0.280 ± 0.013	0.0067 ± 0.0004	149.0 ± 9.3	0.225 ± 0.009	154.3 ± 10.2