metaljetmetaljet Data Collection System

  • Ultimate performance by combining the Excillum MetalJet with a DECTRIS detector and amar345 mar345s mardtb goniostat

    metaljet data collection system

  • High brilliance X-ray source with very small beam

    metaljet data collection system

  • State-of-the-art mirrors with low divergence

    metaljet data collection system

  • Easy to use controller with full network connectivity

    metaljet data collection system

  • Controllers for Oxford Cryostream and the mar345 mar345smarLiN2 automatic refill system

    metaljet data collection system

  • Approx. 1.0 Angstroem resolution with PILATUS3 R 1M detector

    metaljet data collection system

  • Apps for iOS and Android to operate shutter and X-ray generator

    metaljet app

The liquid metal technology brought to science by Excillum is a major breakthrough in microfocus X-ray generator technologies. The liquid metal jet produces a smaller and more brilliant X-ray beam than any other conventional X-ray source. Other than rotating anodes, the MetalJet generator does not require a huge cooling system to keep the anode from melting - the anode already is molten. Only small amounts of liquid metal dissipate the heat generated by the electron gun hitting the molten metal jet very efficiently. Most typically, an alloy consisting of gallium and indium produces X-rays with 9.2 keV energy (1.35 Ang. wavelength), but alloys for higher energies are available as well. For protein crystallography as well as other X-ray fields, the Excillum's MetalJet D2+ 70kV is the dream machine when combined with a DECTRIS hybrid photon counting detector like the EIGER R 4M or the PILATUS3 R 1M and the mardtb goniostat. This truely is the ultimate data collection system with no equivalent in the market! 


MetalJet D2+ 70kV X-ray Generator:
Excillum D2+ 70kV MetalJet microfocus X-ray generator operating at 250 Watts (70 kV, 3.5 mA) and with 2 usable ports, producing a  spot with a size of approx. 20 by 20 µm at the source. The generator does not require special water and electrical installations. Other models of the MetalJet generator are available, e.g. an entry level version using the same liquid metal technology but a simpler elecron focussing device and hence smaller X-ray flux.
AXO optics X-ray Optics:
State-of-the-art AXO multi-layer optic producing a spot size at the sample of < 150 by 150 µm FWHM. Other configurations, e.g. for a parallel beam are available on request.
PILATUS3 R pixel detector X-ray Detectors:
mardtb desktop beamline Goniostat:
mardtb “desktop beamline” multi-purpose goniometer system, optionally with the “easymount” extension or the brand-new marxps crystallization plate scanner addition.
Oxford Cryosystems 800 Cryo-cooler:
Optional Oxford Cryosystems “Cryostream 800” low temperature unit.
marLiN2 LN2 refill system LN2 refill system:
Optional marLiN2 automatic LN2 refill system
Radiation enclosure Table top and enclosure:
A functional and stable table with plenty of space for all electronics and attachments. Optional table top radiation enclosure.
Mobile apps Mobile apps:
Apps for iOS and Android to operate safety control system, i.e. open/close shutters and turn on/off of X-rays.


Incredible brilliance: Even very small samples will receive enough X-ray photons - as on a synchrotron!
Dependable: Every single component of the system is renowned for its reliability, the one for the DECTRIS EIGER and PILATUS3 detectors, the mar345 detector and the mardtb goniostat being proverbial.
Performance: Let’s face it: would you have believed that a generator running at 250 Watts can beat another one running at 2500 Watts?.
No electrical installations: The entire system can be used on three-phase 220/110 V wall sockets with a 16A fuse.
No water installations: Cooling of the liquid metal anode is accomplished by a air/water heat exchanger that ships with the system. No other water cooling required!
Low power consumption: The generator runs at 70 kV / 3.5 mA, i.e. 250 Watts!
Network connectivity: The generator and the safety control system are fully hooked up to the network and can be operated from remote computers.
Mobile apps: marXperts provides mobile apps for iOS and Android to operate the safety control system.
Compact design: The footprint of the entire system is 1.7 x 1 m². Basically, it will fit anywhere in your lab.
Low noise: Due to limited cooling requirements, the noise generated by the system is far inferior as the one from rotating anode generators


The generator delivers a very small beam with such a high brilliance that even very small crystals sized < 50 µm will see enough X-ray photons. This is achieved by a highly optimized combination of source and optics parameters. Please read the application notes for further details!

Application Notes:

We have carried out some very exciting experiments with lysozyme, trypsin and thaumatin which will be presented shortly...


Please click on headlines to expand. 

Generator: Excillum MetalJet D2+ 70kV

Target material: Ga or In rich alloy
Voltage: 25 - 70 kV
Power: 250 W
Beam size at sample: ≤ 100 x 100 μm
Peak flux density at focal spot: > 3.3  x 1010 photons/sec/mm2
Focal distance: approx. 520 mm from source
Anode cooling: air/water heat exchanger
Mirror protection: diaphragm vacuum pump with interlock to shutter


Active area: 155.2 x 162.5 mm (2 x 4 modules)
Pixel size: 75 μm
Frame rate: 5 Hz (laboratory version)
Dynamic range: 32 bits


Active area: 155.2 x 162.5 mm (2 x 5 modules)
Pixel size: 172 μm
Frame rate: 5 Hz (laboratory version)
Dynamic range: 20 bits

Detector: mar345s image plate

Detector surface diameter: 345 mm
Pixel size: 150 μm standard or fast read-out, 100 μm upon request
Cycle times: 27-80 sec (depending on diameter and read-out mode)
Dynamic range: 17 bits (1-131000)
Sensitivity: 1.5 X-ray photons equivalent

Goniostat: mardtb system with automatic X-ray beam alignment

  • mardtb standard goniostat with 14 motors
  • mardtb + built-in motorized goniometer head
  • easymount: mardtb + automated sample mounting system
  • marxps: crystallization plate scanner

Cryo-cooler: Oxford Cryosystems Cryostream 800

LN2 auto-refill system: marLiN2 weight based level control

Experimental table:

Dimensions: 1700 x 1000 x 800 mm (w:d:h), stainless steel
Material: magnetic table top and aluminum table frame



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