metaljet Data Collection System
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Ultimate performance by combining the Excillum MetalJet with a DECTRIS detector and a
mardtb goniostat
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High brilliance X-ray source with very small beam
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State-of-the-art mirrors with low divergence
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Easy to use controller with full network connectivity
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Controllers for Oxford Cryostream and the
marLiN2 automatic refill system
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Approx. 1.0 Angstroem resolution with PILATUS3 R 1M detector
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Apps for iOS and Android to operate shutter and X-ray generator
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 PILATUS3 R 1M and the mardtb goniostat. This truely is the ultimate data collection system with no equivalent in the market!
Components:
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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. |
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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. |
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X-ray Detectors:
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Goniostat: mardtb “desktop beamline” multi-purpose goniometer system, optionally with the “easymount” extension or the brand-new marxps crystallization plate scanner addition. |
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Cryo-cooler: Optional Oxford Cryosystems “Cryostream 800” low temperature unit. |
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LN2 refill system: Optional marLiN2 automatic LN2 refill system |
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Table top and enclosure: A functional and stable table with plenty of space for all electronics and attachments. Optional table top radiation enclosure. |
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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 EIGER2 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?. |
| 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 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 |
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!
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!
Specifications:
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: | > 3.5 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: | 5 Hz (laboratory version) |
| Dynamic range: | 32 bits |
Detector: DECTRIS PILATUS3 R 1M
| 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
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 |
Downloads:
- Product brochure (pdf: 2.0 MB)
- Application note mar.AN29May18 (pdf: 1.0 MB)
"Atomic resolution data collection with the PILATUS3 R 1M detector on a metaljet X-ray source" - Manual for MetalJet safety control system (pdf)
- Drawing of table, generator, enclosure, goniometer and detector (pdf: 109 kB)
- Windows program to control Metaljet Safety Controller (complete installer, 61 MB)