TY  - JOUR
A1  - Send, Sebastian
A1  - Abboud, Ali
A1  - Leitenberger, Wolfram
A1  - Weiss, Manfred S.
A1  - Hartmann, Robert
A1  - Strüder, Lothar
A1  - Pietsch, Ullrich
T1  - Analysis of polycrystallinity in hen egg-white lysozyme using a pnCCD
JF  - Journal of applied crystallography
N2  - A crystal of hen egg-white lysozyme was analyzed by means of energy-dispersive X-ray Laue diffraction with white synchrotron radiation at 2.7 angstrom resolution using a pnCCD detector. From Laue spots measured in a single exposure of the arbitrarily oriented crystal, the lattice constants of the tetragonal unit cell could be extracted with an accuracy of about 2.5%. Scanning across the sample surface, Laue images with split reflections were recorded at various positions. The corresponding diffraction patterns were generated by two crystalline domains with a tilt of about 1 degrees relative to each other. The obtained results demonstrate the potential of the pnCCD for fast X-ray screening of crystals of macromolecules or proteins prior to conventional X-ray structure analysis. The described experiment can be automatized to quantitatively characterize imperfect single crystals or polycrystals.
Y1  - 2012
U6  - https://doi.org/10.1107/S0021889812015038
SN  - 0021-8898
VL  - 45
IS  - 6
SP  - 517
EP  - 522
PB  - Wiley-Blackwell
CY  - Hoboken
ER  -