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@ARTICLE{Yefanov:288118,
author = {Yefanov, Oleksandr and Mariani, Valerio and Gati, Cornelius
and White, Thomas A. and Chapman, Henry N. and Barty, Anton},
title = {{A}ccurate determination of segmented {X}-ray detector
geometry},
journal = {Optics express},
volume = {23},
number = {22},
issn = {1094-4087},
address = {Washington, DC},
publisher = {Soc.},
reportid = {PUBDB-2015-04830},
pages = {28459 - 28470},
year = {2015},
abstract = {Recent advances in X-ray detector technology have resulted
in the introduction of segmented detectors composed of many
small detector modules tiled together to cover a large
detection area. Due to mechanical tolerances and the desire
to be able to change the module layout to suit the needs of
different experiments, the pixels on each module might not
align perfectly on a regular grid. Several detectors are
designed to permit detector sub-regions (or modules) to be
moved relative to each other for different experiments.
Accurate determination of the location of detector elements
relative to the beam-sample interaction point is critical
for many types of experiment, including X-ray
crystallography, coherent diffractive imaging (CDI), small
angle X-ray scattering (SAXS) and spectroscopy. For
detectors with moveable modules, the relative positions of
pixels are no longer fixed, necessitating the development of
a simple procedure to calibrate detector geometry after
reconfiguration. We describe a simple and robust method for
determining the geometry of segmented X-ray detectors using
measurements obtained by serial crystallography. By
comparing the location of observed Bragg peaks to the spot
locations predicted from the crystal indexing procedure, the
position, rotation and distance of each module relative to
the interaction region can be refined. We show that the
refined detector geometry greatly improves the results of
experiments.},
cin = {FS-CFEL-1},
ddc = {530},
cid = {I:(DE-H253)FS-CFEL-1-20120731},
pnm = {6215 - Soft Matter, Health and Life Sciences (POF3-621) /
AXSIS - Frontiers in Attosecond X-ray Science: Imaging and
Spectroscopy (609920) / NANOMEM - Membrane Protein
Nanocrystallography (317079) / 05E13GU1 - Entwicklung eines
"Serial Femtosecond Crystallography (SFX)"-Messtandes am
Europäischen Elektronenlaser XFEL (BMBF-05E13GU1)},
pid = {G:(DE-HGF)POF3-6215 / G:(EU-Grant)609920 /
G:(EU-Grant)317079 / G:(DE-H253)BMBF-05E13GU1},
experiment = {EXP:(DE-H253)CFEL-Exp-20150101 /
EXP:(DE-MLZ)External-20140101},
typ = {PUB:(DE-HGF)16},
UT = {WOS:000366578900037},
pubmed = {pmid:26561117},
doi = {10.1364/OE.23.028459},
url = {https://bib-pubdb1.desy.de/record/288118},
}