Table 1. Summary of the experimental conditions of the sXFH measurements on PSII.

	Unit-cell parameters			Total photons collected (×106)
Sample	(Å)	(°)	No. of scan positions	At χH, 6.565 keV	At χL, 6.551 keV
001	a = 123.807, b = 228.591, c = 286.008	α = β = γ = 90	231	4.30	3.58
002	a = 125.444, b = 228.707, c = 286.563	α = β = γ = 90	144	3.17	2.59
003	a = 124.75, b = 229.485, c = 285.433	α = β = γ = 90	72	2.19	1.70
004	a = 124.234, b = 228.938, c = 285.951	α = β = γ = 90	80	2.22	1.65
005	a = 134.579, b = 227.073, c = 286.66	α = β = γ = 90	179	2.12	1.77
006	a = 121.072, b = 227.512, c = 286.063	α = β = γ = 90	138	1.76	1.43
007	a = 123.024, b = 228.847, c = 286.000	α = β = γ = 90	77	2.01	1.57
008	a = 124.049, b = 229.029, c = 290.245	α = β = γ = 90	143	4.64	3.74
009	a = 121.633, b = 228.184, c = 286.12	α = β = γ = 90	164	5.07	3.76