Open AccessFlexible positioning of a large area detector using an industrial robot
Author(s) -
Reinhard Christina,
Drakopoulos Michael,
Charlesworth Christopher M.,
James Andrew,
Patel Hiten,
Tutthill Paul,
Crivelli Davide,
Deyhle Hans,
Ahmed Sharif I.
Publication year - 2022
Publication title -
journal of synchrotron radiation
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.172
H-Index - 99
ISSN - 1600-5775
DOI - 10.1107/s1600577522006300
Subject(s) - detector , optics , diffraction , position (finance) , repeatability , physics , displacement (psychology) , beamline , calibration , metrology , beam (structure) , materials science , chemistry , psychology , finance , chromatography , quantum mechanics , economics , psychotherapist
The DIAD beamline for Dual Imaging and Diffraction at Diamond Light Source has opted to use an industrial robot to position its Dectris Pilatus 2M CdTe diffraction detector. This setup was chosen to enable flexible positioning of the detector in a quarter‐sphere around the sample position whilst reliably holding the large weight of 139 kg of detector, detector mount and cabling in a stable position. Metrology measurements showed that the detector can be positioned with a linear repeatability of <19.7 µm and a rotational repeatability of <16.3 µrad. The detector position stays stable for a 12 h period with <10.1 µm of movement for linear displacement and <3.8 µrad for rotational displacement. X‐ray diffraction from calibration samples confirmed that the robot is sufficiently stable to resolve lattice d ‐spacings within the instrumental broadening given by detector position and beam divergence.