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metaljet

State-of-the-art data collection system

Multilayer mirrors

  • superb multi-layer mirrros with extremely high brilliance and low divergence
  • 15 cm mirror length
  • vacuum pump for mirror protection

mardtb goniometer

  • best combined with easymount extension
  • fully automatic beam search
  • fully automatic beam optimization
  • continuous beam monitoring with ionization chambers
  • support for large variety of detectors

Collimator

  • 2 sets of motorized slits
  • 2 ionization chambers for continuous X-ray readings
  • experimental rotary shutter at end of collimator

Cryo device

  • Oxford Cryosystems colling device (or others)

Excillum Metaljet D2+

  • Ga-rich alloy with 1.34 Ang. wavelength or In-rich alloy with 0.5 Ang. wavelength
  • 250 Watt
  • Spot size of 20 x 80 microns

Manual motor control unit

  • push buttons for most important goniometer functions
  • LCDs with readings of ionization chambers
  • buttons for easymount operation
  • centering of sample

X-ray detector

  • support for many detector types: EIGER2, PILATUS3, mar345, Rayonix SX-165, MX-225, etc.
  • ideal combination: EIGER2 R 4M or PILATUS4 R 1M

Controllers for cryogenic devices

  • controller for Oxford 700/800/1000 series
  • marLiN2 liquid nitrogen refill controller

Metaljet safety controller

  • controller for shutters, radiation enclosure and HV generator
  • API for external control via TCP/IP or REST API
  • mobile app for control
  • sophisticated safety features

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 EIGER2 R 4M or the PILATUS4 R 1M and the mardtb goniostat. This truely is the ultimate data collection system with no equivalent in the market!

COMPONENTS

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, typically producing a  spot with a size of approx. 20 by 20 µm or smaller 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.
EIGER R4M 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 1000” 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.

HIGHLIGHTS

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 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?

DUAL PORT SUPPORT

Our safety setup includes dual port use right from the beginning. If you want to use both ports of the X-ray source, you don't need additional hardware!

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 APP

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

PERFORMANCE

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!

It becomes your dream machine when combined with a DECTRIS hybrid photon counting detector like the EIGER2 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!

SPECIFICATIONS

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: > 3.5  x 1011 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
Detector: DECTRIS EIGER2 R 4M
Active area: 155.1 x 162.2 mm (2 x 4 modules)
Pixel size: 75 μm
Frame rate: 20 Hz (laboratory version)
Dynamic range: 32 bits
Detector: DECTRIS PILATUS4 R 1M
Active area: 155 x 162 mm (2 x 4 modules)
Pixel size: 150 μm
Frame rate: 10 Hz (laboratory version)
Dynamic range: 32 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
Configurations:
  • 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
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

APPLICATION NOTES

We have carried out some very exciting experiments with lysozyme, trypsin and thaumatin. Data were collected up to atomic resolution (1.0 Ang.). Superb data quality allowed for solving structures ab-initio using sulfur-SAD phases. Please download application note mar.AN29May18: "Atomic resolution data collection with the PILATUS3 R 1M detector on a metaljet X-ray source" to learn about the details!

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