Rigaku introduces two advanced CCD X-ray detectors for crystallography applications

Rigaku introduces two advanced CCD X-ray detectors for crystallography applications

The Woodlands, TX — August 22, 2007. Rigaku Americas Corporation announces the introduction of two new high-performance CCD based area X-ray detectors at the 24th European Crystallographic Meeting (ECM24) in Marrakech, Morocco held from August 22-27, 2007. Optimized for macromolecular and small molecule X-ray crystallography respectively, the Saturn 944+ and Saturn 724+ were internally designed, developed and manufactured by Rigaku as part of an on-going commitment to providing the most advanced tools for structural biology and chemistry research and development.

Bringing a new dimension to high-throughput data collection, with a 4-fold increase in readout speed (to 8 MHz total) and improved signal-to-noise and dynamic range, the Saturn+ line of third generation Rigaku CCD X-ray detectors is optimized for high-performance X-ray crystallography applications where maximum productivity is essential. This new generation of CCD detectors delivers extremely high readout speeds without any significant increase in read noise compared to the previous generation of CCD-based X-ray detectors. Both detectors employ the advanced Kodak® KAF-4320E CCD sensor, incorporating transparent indium tin oxide (ITO) technology for superior sensitivity. A large-format front illuminated sensor, optimized for high dynamic range and superior spatial resolution, is coupled with a state-of-the-art high-speed 18-bit analog-to-digital converter and 4-port parallel readout to deliver low noise, a true 17,500:1 dynamic range and ultrafast readout times simultaneously for the first time in such a detector.

The full-frame CCD sensor uses proprietary two-phase architecture with large pixels for wide dynamic range. To increase the sensitivity of the chip, one of the two polysilicon gates used in conventional CCD sensors has been replaced with the transparent conductor indium-tin-oxide (ITO). This architecture eliminates the need to resort to backside illumination and provides the intrinsically superior dark current characteristics needed to generate the highest quality data.

With a large 94 mm x 94 mm (133 mm diagonal) image area, the Rigaku Saturn 944+ is the definitive CCD X-ray detector specifically optimized for the high-throughput and spatial resolution needs of protein and macromolecular crystallography. For small molecule crystallography, the Saturn 724+ features a 72 mm x 72 mm image area (102 mm diagonal). Both detector systems employ an extremely reliable closed loop Joule-Thompson cooling system (no water required) and an in-camera LCD status display panel.

Complimenting the Saturn+ line is the Rigaku Saturn A200, the first "next generation" large-area CCD detector to be offered. Incorporating a 2 x 2 array of the Kodak KAF-4320E CCD chips, with a 203 x 203 mm active area, the Saturn A200 brings a new dimension to both synchrotron and home laboratory data collection.

Rigaku—Leading With Innovation

Since its inception in Japan in 1951, Rigaku has been at the forefront of analytical and industrial instrumentation technology. Rigaku and its subsidiaries form a global group focused on life sciences and general purpose analytical instrumentation. With hundreds of major innovations to their credit, Rigaku companies are world leaders in the fields of small molecule and protein crystallography, X-ray spectrometry and diffraction, X-ray optics, as well as semiconductor metrology. Rigaku employs over 1,100 people in the manufacture and support of its analytical equipment. Its products are in use in more than 70 countries—supporting research, development, and quality assurance activities. Throughout the world, Rigaku continuously promotes partnerships, dialog, and innovation within the global scientific and industrial community.

For further information, contact:

Joseph D. Ferrara, Ph.D
SVP, Life Science and CSO
Rigaku
Tel: 281-362-2300
eMail: Joseph D. Ferrara