Performance of multiple-CCD x-ray detector system at SPring-8 for protein crystallography

Masayo Suzuki; Masaki Yamamoto; Takashi Kumasaka; Kazumichi Sato; Hidenori Toyokawa; Tatzuo Ueki

doi:10.1117/12.367121

6 October 1999 Performance of multiple-CCD x-ray detector system at SPring-8 for protein crystallography

Masayo Suzuki, Masaki Yamamoto, Takashi Kumasaka, Kazumichi Sato, Hidenori Toyokawa, Tatzuo Ueki

Proceedings Volume 3774, Detectors for Crystallography and Diffraction Studies at Synchrotron Sources; (1999) https://doi.org/10.1117/12.367121
Event: SPIE's International Symposium on Optical Science, Engineering, and Instrumentation, 1999, Denver, CO, United States

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.

Citation Download Citation

Masayo Suzuki, Masaki Yamamoto, Takashi Kumasaka, Kazumichi Sato, Hidenori Toyokawa, and 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); https://doi.org/10.1117/12.367121

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KEYWORDS

X-rays

X-ray detectors

Charge-coupled devices

X-ray imaging

Sensors

Digital filtering

Image filtering

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