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Microfocus x-ray Products
Microfocus Sources
Our newest product line, produces spot sizes of less than 10 micron with power from a few watts and potentials up to 90kV in a completely integrated tube and power supply package. Check out the full page on this exciting new product from XTG.
- Microfocus Products
- Integrated Small Spot X-ray tube and power supply
XTG UltraBright Microfocus X-ray Source
Appl. Cryst. (2000). 33, 882-887
First results from a macromolecular crystallography system with a polycapillary collimating optic and a micro focus X-ray generator
M. Gubarev, E. Ciszak, I. Ponomarev, W. Gibson and M. Joy
Abstract:
The design and performance of a high-flux X-ray crystallography system, optimized for diffraction measurements from small macromolecular crystals, is described. This system combines a microfocus X-ray generator [40 µm full width at half-maximum (FWHM) spot size at a power level of 40 W] and a short focal length (F= 2.6 mm) polycapillary collimating optic, and produces a small-diameter quasi-parallel X-ray beam. Measurements of the X-ray flux, divergence and spectral purity of the resulting X-ray beam are presented. The X-ray flux through an aperture of 250 µm diameter produced by the microfocus system is 16 times higher than that from a 3.15 kW rotating-anode generator equipped with a pyrolytic graphite monochromator. Diffraction data from lysozyme test crystals collected with the microfocus X-ray system are of high quality and can be reduced with standard crystallographic software, yielding an overall merging factor Rsym< or = 6%. Significant additional improvements in flux are possible, and plans for achieving these goals are discussed.
XTG UltraBright Microfocus x-ray Source
31K jpg
Specifications: 90kV Micro focus X-Ray tube and controller
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X-Ray tube |
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Item |
Value |
Unit |
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Item |
Description |
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Target voltage |
20 to 90 |
kV |
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X-ray tube |
Integrated/Sealed |
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Target current |
0 to 2.0 |
mA |
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Cooling method |
Air (50 CFM @ 4") |
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Max output power |
80 |
watts |
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Window material |
245 micron Be |
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Focal spot size |
<10 to 40 |
micron |
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Cathode design |
Dispenser cathode |
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Beam angle |
>45 |
degrees |
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Window position |
End window |
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Minimum optic distance |
2 |
mm |
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Environment temp. |
+10 to +55 degrees C |
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Target angle |
67.5 |
degrees |
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Operation |
Continuous |
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Exit window diameter |
9.50 |
mm |
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Weight |
Approx 4.0 kg |
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Dimensions: Length: 17.5", Diameter:4.5" (includes X-ray tube and power supply) |
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Controller
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Functions |
Key switched power, HV on/off, kV adjust, Brightness/Autofocus adjust |
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External control |
Remote control (RS232 available) |
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Power consumption |
100W maximum |
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Input voltage |
110/220 AC auto sensing |
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HV cable |
Not necessary, HV power supply and X-ray tube fully integrated. |
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LV cable |
Std 25 pin D-type connector (up to 25 feet) |
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Size |
L: 17.25", H: 5.75", D: 16" (Rack mount available) |
Innovative anode design provides highest flux available in a microfocus X-ray Source
- Two watts per micron power loading
- 2 mm object distance for high magnification
- True round spot source in a fully integrated package
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90kV Microfocus X-Ray tube |
- "Smart" controller allows for easy operation
- No "burning out the spot"
- One knob operation controls intensity and spot
- Auto focus design maximizes throughput
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- 4 mm sample to source distance maximizes magnification
- Grounded anode design eliminates need for high voltage standoff
- Concentrated heat dissipation allows for small forced air fan cooling
- Unique anode geometry allows for beam angle greater than 45 degrees
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