A compact, fully integrated high-resolution, small molecule crystallography system, the Rigaku R-AXIS RAPID II is the latest member of the RAPID family of large-area curved imaging plate (IP) X-ray diffraction systems. The RAPID II combines every component needed for a high-performance X-ray diffraction system delivering no-compromise performance for applications ranging from applied crystallography to chemical crystallography. The flexible system works with wavelengths from Cr to Ag without compromising data quality. The extremely large aperture means that the full resolution range for any wavelength can be covered very easily. The R-AXIS RAPID is the system of choice for the most demanding applications, including charge-density work, complicated twins and studies on diffuse scattering. Other applications include micro-diffraction, measurement of weakly diffracting disordered materials, wide angle X-ray scattering (WAXS), stress and texture measurements, and general purpose powder diffraction.

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Curved detector for maximum reciprocal space coverage

The RAPID II is so versatile that it can replace several instruments without compromising data quality. Its unique, curved large-area detector subtends a 2θ range of 204° at a single detector setting for maximum reciprocal space coverage. The large curved active area is advantageous because a massive solid angle of data is collected in a single exposure. While the wide dynamic range eliminates worrying about detector saturation, the curved-plate geometry of the RAPID II reduces oblique-incidence X-ray absorption effects seen with flat detectors of any kind.

Choice of X-ray sources, including dual wavelength

Inherent to the flexibility of this system is a choice of X-ray sources, ranging from a high-frequency 3 kW sealed tube, to a MicroMax-003 microfocus tube, to a 1.2 kW MicroMax™-007 HF microfocus rotating anode. Available optics range from a traditional graphite monochromator or high-performance SHINE™ optic to a VariMax™ confocal X-ray optic. Dual wavelength is available with the new MicroMax-007 HF DW or FR-E+ DW SuperBright™ optional sources: in this novel approach, two optics are housed in a single assembly, with either optic being selected by a simple rotation. In addition, the patented adjustable divergence feature is maintained for each optic.



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Since its inception in 1951, Rigaku has been at the forefront of analytical and industrial instrumentation technology. Today, with hundreds of major innovations to their credit, the Rigaku Group of Companies are world leaders in the fields of general X-ray diffraction (XRD), thin film analysis (XRF, XRD and XRR), X-ray fluorescence spectrometry (TXRF, EDXRF and WDXRF), small angle X-ray scattering (SAXS), protein and small molecule X-ray crystallography, Raman spectroscopy, X-ray optics, semiconductor metrology (TXRF, XRF, XRD and XRR), X-ray sources, computed tomography, nondestructive testing and thermal analysis. With Rigaku's vast understanding of X-ray and its complementary technologies as a foundation, our true strength is seen in an unparalleled willingness to collaborate with customers. By promoting partnerships, dialog, and innovation within the global scientific and industrial communities, Rigaku demonstrates a relentless commitment to providing our client markets with fully integrated solutions. The company and its employees are dedicated to developing and supplying universities, industry, and government labs with the ultimate in customer-focused integrated solutions across a wide variety of disciplines, including structural proteomics, nanoengineering research, general purpose X-ray diffraction (XRD) and spectroscopy (XRF), materials analysis and quality assurance. Whether supplying the tools to create better semiconductor chips, enabling drug discovery, improving production line quality, or exploring the new frontier of nanotechnology, Rigaku products and services lead with innovation. Rigaku employs over 1,100 people worldwide in operations based in Japan, the U.S., Europe and China. We value our people. Our value comes from them. Close collaboration between our users and employees sets the direction and focus of our work, allowing us to address customers' needs and stay close to the market place.


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