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Figure 3
(a) Technical drawing of the Roadrunner II goniometer together with the JUNGFRAU 1M detector installed at beamline ID09 at the ESRF. (b) Close-up of the interaction region showing the in-line sample-viewing microscope with the collimator (left), the chip with the retracted humidor (in green), the capillary beamstop enclosing the direct beam shortly after the chip and the JUNGFRAU 1M detector (right). For better visibility, the humidity chamber is not shown here. The X-ray beam bath is highlighted in pink. (c) The Roadrunner II chip inside the measurement chamber. The observed humidity gradient from the top-left to the lower-right side as observed in the chamber is indicated in light blue, with areas of higher humidity being brighter. In the `in-position' at the start of a scan the whole chip area is in a region of high relative humidity. (d) The `out-position' of the chip at the end of a measurement. In particular, the lower-right side of the chip is in an area of lower relative humidity.

Volume 6| Part 5| September 2019| Pages 927-937
ISSN: 2052-2525