The MetalJet D2+ is the latest version in Excillum’s line of extreme brightness X-ray sources, following the success of the earlier MetalJet D1 and D2. It is similar to a standard X-ray tube, but features Excillum’s unique metal-jet anode technology and advanced electron optics. Within the 5-30 μm spot-size range, it delivers significantly higher brightness than any other available microfocus X-ray source on the market, and with an excellent spot quality. This makes it an ideal source for any microfocus application requiring shorter exposure times, higher throughput or better signal to noise.
With the introduction of Dynamic Adaptation technology in July 2019 the practical cathode lifetime has been further extended 2-4x, up to a full year of 24/7 operation depending on application.

Technical Specifications

Target material1 Ga or In rich metal alloy Min. focal spot size ~ 5 μm
Target type Liquid jet Emission stability3 < 1%
Voltage 21-70 kV Position stability3 < 1 μm
Power2 0-250 W Min. focus-object distance4 18 mm
Max current 4.3 mA Beam angle 13°/30°

Available Anode Alloys

 

Anode Alloy Gallium
[weight %]
Indium
[weight %]
Tin
[weight %]
ExAlloy-G1 95 5  –
ExAlloy-I1 68 22 10
ExAlloy-I26 47 37 16
ExAlloy-I3 75 25  –

1) The room temperature liquid metal alloys supplied for the MetalJet source consist mainly of gallium, indium and tin. They have low reactivity and low toxicity but should be handled according to their safety data sheets and local regulations. 
2) The actual power used is dependent on spot-size and voltage. However, maximum output power of the 70 kV high-voltage-generator is 300 W.
3) Standard deviation.
4) Without a shutter (24.8 mm with shutter).
5) Without a shutter (10.5° with shutter).

6) Operation of ExAlloy-I2 requires that the MetalJet source is equipped with a heater system since the melting point is above room temperature. Due to this requirement the MetalJet sources with ExAlloy-I2 are under limited availability. Please contact us for further information.

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