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Proceedings Paper

Performance of multiple-CCD x-ray detector system at SPring-8 for protein crystallography
Author(s): Masayo Suzuki; Masaki Yamamoto; Takashi Kumasaka; Kazumichi Sato; Hidenori Toyokawa; Tatzuo Ueki
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Paper Abstract

The 4 X 4 multiple CCD X-ray detector installed in the beamline 45XU of the SPring-8 facility in Japan was examined by acquiring X-ray diffraction images of lysozyme crystals. The detector system was calibrated at the beamline by observing X-ray images of a flood-field and a mask pattern generated by the synchrotron radiation X-ray beam. It was found in the present work that the quality of the X-ray images observed is limited by an unexpected spike noise, the origin of which was suspected to be the (gamma) -rays emitted from the radioisotopes remaining in the X-ray scintillating screen. Image analysis carried out with a median filter predicted, however, that the image quality could be as high as designed, once the noise as well as the grain colonization is removed from the screen.

Paper Details

Date Published: 6 October 1999
PDF: 8 pages
Proc. SPIE 3774, Detectors for Crystallography and Diffraction Studies at Synchrotron Sources, (6 October 1999); doi: 10.1117/12.367121
Show Author Affiliations
Masayo Suzuki, Japan Synchrotron Radiation Research Institute (Japan)
Masaki Yamamoto, RIKEN--The Institute of Physical and Chemical Research (Japan)
Takashi Kumasaka, RIKEN--The Institute of Physical and Chemical Research (Japan)
Kazumichi Sato, Institute of Physical and Chemical Research (RIKEN) (Japan)
Hidenori Toyokawa, Japan Synchrotron Radiation Research Institute (Japan)
Tatzuo Ueki, Japan Synchrotron Radiation Research Institute (Japan)


Published in SPIE Proceedings Vol. 3774:
Detectors for Crystallography and Diffraction Studies at Synchrotron Sources
George W. Fraser; Edwin M. Westbrook; Gareth E. Derbyshire, Editor(s)

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