VariMax™ X-ray optics
Intense, uniform VariMax beam profile |
VariMax, the latest generation of Confocal Max-Flux® (CMF) optics, is a landmark of innovative design and functionality. VariMax optics will increase output from most fine focus rotating anode generators but were specifically designed to achieve maximum performance when coupled with Rigaku microfocus X-ray generators. VariMax optical systems all feature a patented, continuously adjustable divergence slit assembly that enables users to adjust the X-ray beam divergence to allow for optimal spot separation for each crystal.
Different models of the VariMax optical system are available which have been designed and tested for specific applications and all VariMax optics provide superior performance compared to other X-ray optics. The long length of VariMax optics, compared to other multilayer optics, captures more of the X-ray beam from the microfocus generator resulting in higher flux. High flux, excellent spectral purity, uniform beam profile, and adjustable divergence make VariMax optics the ideal choice for single crystal diffraction experiments.
VariMax optic models
|
Model |
Divergence range (mR) |
Beam size at sample (mm) |
Application |
|
VariMax HR |
3.2 - 0 |
0.30 |
Protein crystallography with Cu radiation and crystals with long unit cells |
|
VariMax HF |
4.8 - 0 |
0.21 |
Protein crystallography with Cu radiation and small crystals |
|
VariMax VHF |
10 - 0 |
0.10 |
Protein crystallography with Cu radiation and very small crystals |
|
VariMax Cr |
3.2 - 0 |
0.45 |
Protein crystallography with Cr radiation for SAD phasing |
|
VariMax Ag |
2.7 - 0 |
0.18 |
Small molecule crystallography with Ag radiation for high Z electron density studies. Available in Kα and Kβ. |
|
VariMax Co |
3.2 - 0 |
0.39 |
Protein crystallography with Co radiation for SAD phasing |
|
VariMax Mo |
3.5 - 0 |
0.20 |
Small molecule crystallography with Mo radiation and small crystals |