Improved x-ray converters for CCD-based crystallography detectors

Vivek V. Nagarkar; Jeffrey S. Gordon; Stefan A. Vasile; Juanhui Xie; Walter Charles Phillips

doi:10.1117/12.211909

15 June 1995 Improved x-ray converters for CCD-based crystallography detectors

Vivek V. Nagarkar, Jeffrey S. Gordon, Stefan A. Vasile, Juanhui Xie, Walter Charles Phillips

Proceedings Volume 2519, X-Ray and Ultraviolet Sensors and Applications; (1995) https://doi.org/10.1117/12.211909
Event: SPIE's 1995 International Symposium on Optical Science, Engineering, and Instrumentation, 1995, San Diego, CA, United States

Abstract

We are developing a large area structured CsI(Tl) imaging sensor for macro-molecular x-ray crystallography for use with both intense synchrotron sources and rotating-anode laboratory x- ray sources. The CsI(Tl) scintillator is grown on a specially designed optical substrate. Our work has produced x-ray sensors with up to 70% more light output, orders of magnitude faster decay time response, and greater spatial resolution (15% MTF at 20 lp/mm) than Gd₂O₂S screens currently used in CCD-based detectors for biological structure determination. These advances in performance will address some of the limitations of existing area detector technology. Performance measurements for a prototype CsI(Tl) scintillator are presented. With these new sensors the development of larger area x-ray crystallography detectors with millisecond data acquisition capabilities and high spatial resolution, suitable for synchrotron applications will be possible.

Citation Download Citation

Vivek V. Nagarkar, Jeffrey S. Gordon, Stefan A. Vasile, Juanhui Xie, and Walter Charles Phillips "Improved x-ray converters for CCD-based crystallography detectors", Proc. SPIE 2519, X-Ray and Ultraviolet Sensors and Applications, (15 June 1995); https://doi.org/10.1117/12.211909

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