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. 2019 May 14;26(Pt 4):991–997. doi: 10.1107/S1600577519003849

Figure 1.

Figure 1

(a) Experimental setup on beamline I24, showing the sample position with the spectrometer installed and the cryostream in place to control the temperature of the experiments. (b, c, d) Views of a 40 µm ruby sphere (b) mounted within a nylon loop at the sample position, (c) illuminated with the 532 nm laser and (d) when exposed to the X-ray beam, demonstrating the fluorescence of the ruby.