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Figure 3
Repeated experiments with different crystals showing the effect of the relative humidity (RH) on the unit-cell volume change during lt–rt cycling. All crystals were initially at 30%(v/v) DMSO. (a) The effect of changing the RH with a constant melt time of 4 s (circles, 90–100% RH; squares, 50% RH; triangles, 25% RH; diamonds, 4% RH). Experimental setup: home source. (b) The effect of changing the melt time with constant RH (∼50%). For clarity, additional trials at 2, 4 and 8 s have been omitted, but the results were similar; all three have comparable slopes. Experimental setup: SSRL 7-1. |