VariMax DW
Dual-Wavelength X-ray Optic
Focuses and monochromatizes two different X-ray wavelengths for single crystal X-ray diffraction applications
Rigaku VariMax dual-wavelength optic combines two VariMax optics, each designed for a different wavelength selected from Cu, Cr, Mo, Ag or Co radiation. The long length of VariMax optics, compared to other multilayer optics, allows it to capture more of the X-ray beam from the microfocus generator resulting in higher flux.
VariMax DW Overview
A patented, continuously adjustable divergence slit assembly enables users to fine-tune the X-ray beam divergence for optimal spot separation for different types of crystals. The combination of two VariMax optics uniquely enable crystallographers in their home lab to either use a shorter wavelength for higher resolution data such as Cu radiation or a longer wavelength for SAD phasing attempts such as Cr radiation. Data collected on a single crystal at two different wavelengths also enable MAD phasing works. High flux, adjustable divergence, and dual-wavelength make the dual-wavelength VariMax optic the ideal choice for single crystal X-ray diffraction and SAD, MAD phasing experiments in the home lab.
VariMax DW Features
VariMax DW Specifications
| Technique | Dual-wavelength confocal X-ray optic | |
|---|---|---|
| Benefit | Focuses and monochromatizes two different X-ray wavelengths | |
| Technology | Graded, multilayer confocal optic | |
| Attributes | Continuously adjustable divergence slit assembly | |
| Options | Choice of two different wavelengths among Cu, Cr, Mo, Ag and Co radiations | |
VariMax DW Resources
Rigaku Journal articles
 X-ray fluorescence attachment for rapid in-house evaluation of heavy atom derivative crystals in protein crystallography and in-house MAD using the dual wavelength system |
Read the Article |
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