6 October 1999 Performance of multiple-CCD x-ray detector system at SPring-8 for protein crystallography
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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.
© (1999) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Masayo Suzuki, Masayo Suzuki, Masaki Yamamoto, Masaki Yamamoto, Takashi Kumasaka, Takashi Kumasaka, Kazumichi Sato, Kazumichi Sato, Hidenori Toyokawa, Hidenori Toyokawa, Tatzuo Ueki, Tatzuo Ueki, "Performance of multiple-CCD x-ray detector system at SPring-8 for protein crystallography", Proc. SPIE 3774, Detectors for Crystallography and Diffraction Studies at Synchrotron Sources, (6 October 1999); doi: 10.1117/12.367121; https://doi.org/10.1117/12.367121


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