MetalJet E1+ 160 kV

Boundaries are meant to be pushed

Introducing MetalJet E1+ 160 kV.
Kilowatt microfocus performance with submicron stability

At 1000 watts, the new MetalJet E1+ delivers 17 times more X-ray flux across a broad spectral range compared to a 30 W conventional tungsten-solid-anode microfocus source with the same 30 µm spot size. In the spectral range of 24-29 keV where the indium and tin characteristic emission lines are present, the flux advantage is as high as 100 times.

Built for 24/7 continuous performance

The MetalJet E1+ is designed for high-throughput, 100% duty-cycle operation with up to once-per-year preventive maintenance cycles. This eliminates the need for frequent filament changes as required by traditional tubes.

Sub-µm positional stability

Although running at a high thermal load of 1000 W, the MetalJet E1+ maintains a positional stability of below 1 µm during continuous long-term operation.

Unprecedented 24 keV indium Kα emission

For applications requiring focused or collimated high-energy monochromatic radiation, the MetalJet E1+ delivers unprecedented power into the 24 keV indium Kα emission lines. See e.g. the 1.3×1010 ph/s/mm2 example when combined with Montel-type focusing X-ray mirror.

Features and benefits

  • Extreme microfocus source power
  • Superior spot quality
  • Single (left or right) X-ray window or dual (left and right)
  • Minimal maintenance
  • User variable size and aspect ratio of spot
  • LaB6 long-life cathode
  • Very stable X-ray emission and spot position
  • User-friendly Graphical User Interface
  • Controlled through GUI or TCP/IP protocol
  • Adjustable take-off angle
  • No external cooling water requirement
  • Operated remotely from any computer

Technical specifications

Target material1

Liquid metal alloy

Min. focal spot size

< 10 μm

Target type

Liquid jet

Emission stability3

< 1%

Voltage

30-160 kV

Position stability3

< 1 μm

Power2

0-1000 W

Min. focus-object distance

22.5mm

Max current

6.25 mA

Beam angle

20°

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 160 kV high-voltage generators is 3000 W software limited to 1000 W.
3) Standard deviation.

Available target alloys

Target alloy

Gallium
[weight %]

Indium
[weight %]

Tin
[weight %]

ExAlloy-G14

95

5

-

ExAlloy-I1

68

22

10

ExAlloy-I24

47

37

16

ExAlloy-I34

75

25

-

4) Operation of ExAlloy-G1, ExAlloy-I2 and ExAlloy-I3 requires that the MetalJet E1+ source is equipped with a heater system to manage the alloy temperature.

The source consists of the head and the pump system with dimensions shown in the drawing. The head must be mounted essentially straight above the pump system. The coupling is semi-rigid, allowing some movement of the source head. Sources operating with ExAlloy-G1, ExAlloy-I2 and ExAlloy-I3 are equipped with heater jackets around parts in the alloy recirculation loop (not shown in the drawing).

In addition, the MetalJet E1+ 160 kV consists of several 19” rack mounted parts that can be mounted up to 4 m from the head and pump system.

The source can be remotely operated through TCP/IP or directly through the GUI. The GUI can be operated on the source itself if it is equipped with monitor, keyboard and mouse, or on most computer platforms with a TCP/IP connection to the source.

The source cannot be operated as a standalone unit and must be integrated into a system providing the proper interlock connections.

Mains: AC, single phase, 200-240 V, 2.6 kW-3.5 kW (depending on configuration), 50/60 Hz.

Ambient: 20-30 °C (stable within ± 0.5 °C for optimal source stability), max 85% relative humidity.

Performance examples5

Jet material

Acceleration voltage 
[kV]

Nominal X-ray spot size6
[µm]

E-beam power 
[W]

Peak brightness
[photons/(s mm2 mrad2)]

Radiant flux
[photons/(s mrad2)]

ExAlloy-I2

160

30

1000

1.4×1010
1.5x107

160

30

700

1.4×1010
1.3×107

160

25

570

2.2x1010
1.1x107

120

20

380

2.5x1010
8.8x106

70

20

250

1.7x1010
6.5x106

70

10

150

3.3x1010
4.4x106

ExAlloy-G1

160

30

1000

3.9x1010
4.7x107

160

30

700

3.8x1010
3.9x107

160

25

570

5.6x1010
3.4x107

120

20

380

70

20

250

4.1x1010
1.4x107

70

10

150

7.1x1010
9.6x106

Jet material

Acceleration voltage 
[kV]

Nominal X-ray spot size6
[µm]

E-beam power 
[W]

Peak brightness
[photons/(s mm2 mrad2)]

Radiant flux
[photons/(s mrad2)]

ExAlloy-I2

160

30

1000

9.0x109
1.0x107

160

30

700

8.9x109
8.5×106

160

25

570

1.5x1010
7.2x106

120

20

380

1.6x1010
5.7 x106

70

20

250

1.1x1010
4.0x106

70

10

150

2.0x1010
2.7x106

ExAlloy-G1

160

30

1000

3.2x1010
3.7x107

160

30

700

3.0x1010
3.1x107


160

25

570

4.6x1010
2.7x107

120

20

380

5.0x1010
1.9x107

70

20

250

3.2x1010
1.1x107

70

10

150

5.5x1010
7.4x106

Jet material

Acceleration voltage 
[kV]

Nominal X-ray spot size6
[µm]

E-beam power 
[W]

Peak brightness
[photons/(s mm2 mrad2)]

Radiant flux
[photons/(s mrad2)]

ExAlloy-I2

160

30

1000

1.6×1010
1.9×107

160

30

700

1.5×1010
1.5×107

160

25

570

2.1×1010
1.3×107

120

20

380

2.2×1010
8.5×106

70

20

250

1.3×1010
4.3×106

70

10

150

2.2×1010
2.9×106

ExAlloy-G1

160

30

1000

6.3×109
7.7×106

160

30

700

5.9×1010
6.4×106

160

25

570

8.3×1010
5.6×106

120

20

380

70

20

250

7.6×109
2.5×106

70

10

150

1.3×1010
1.7×106

Jet material

Acceleration voltage 
[kV]

Nominal X-ray spot size6
[µm]

E-beam power 
[W]

Peak brightness
[photons/(s mm2 mrad2)]

Radiant flux
[photons/(s mrad2)]

ExAlloy-I2

160

30

1000

4.9×109
5.7×106

160

30

700

4.5×109
4.7×106


160

25

570

6.5×109
4.1×106

120

20

380

5.9×109
2.3×106

70

20

250

2.3×109
7.9×105

70

10

150

3.8×109
5.2×105

ExAlloy-G1

160

30

1000

7.3×108
8.8×105

160

30

700

6.8×108
7.3×105

160

25

570

9.5×108
6.4×105

120

20

380

70

20

250

4.7×108
1.6×105

70

10

150

7.7×108
1.1×105

Jet material

Acceleration voltage 
[kV]

Nominal X-ray spot size6
[µm]

E-beam power 
[W]

Peak brightness
[photons/(s mm2 mrad2)]

Radiant flux
[photons/(s mrad2)]

ExAlloy-I2

160

30

1000

9.3×109
9.6×106

160

30

700

8.4x109
7.8x106

160

25

570

1.2x1010
6.7x106

120

20

380

1.3x1010
4.3x106


70

20

250

7.3x109
1.9x106

70

10

150

1.2x1010
1.3x106

ExAlloy-G1

160

30

1000

7.5×109
8.8×106

160

30

700

6.7x109
7.0x106

160

25

570

8.7x109
6.0x106

120

20

380

70

20

250

6.1x109
1.6x106

70

10

150

1.0x1010
1.1x106

Jet material

Acceleration voltage 
[kV]

Nominal X-ray spot size6
[µm]

E-beam power 
[W]

Peak brightness
[photons/(s mm2 mrad2)]

Radiant flux
[photons/(s mrad2)]

ExAlloy-I2

160

30

1000

9.2×109
7.5×106

160

30

700

8.2x109
5.9x106

160

25

570

1.1x1010
5.0x106

120

20

380

8.7x109
2.0x106

70

20

250

6.4x108
1.1x105

70

10

150

1.1x109
7.2x104

ExAlloy-G1

160

30

1000

6.3×109
5.7×106

160

30

700

5.6x109
4.4x106

160

25

570

7.8x109
3.7x106

120

20

380

70

20

250

4.5x108
8.3x104

70

10

150

8.3x108
5.2x104

5) Examples are based on simulations that typically correspond well to experimental validation. Please contact us for details on such simulations vs. experiment validations including experimental method.
6) The spot size is measured as the full width at half maximum (FWHM) of the X-ray intensity distribution integrated in the horizontal and vertical directions respectively. The X-ray spots are realized by various degree of e-beam line focus with a maximum aspect ratio of 6:1. Actual spot size may differ depending on viewing angle and may have different width and height. Please contact us for more details. 

Datasheets

MetalJet E1+

Brochures

The MetalJet technology

Safety and compliance

Excillum x-ray sources

More information

MetalJet E1+ news announcement
The metal-jet technology
Scientific publications (with MetalJet)

Related products

MetalJet D2+ 70 kV
MetalJet D2+ 160 kV
MetalJet C2
MetalJet with optics
User stories

Experiences with the Excillum MetalJet X-ray sources

Learn about some of our customers’ experiences with our state-of-the-art X-ray sources.

Questions about our products?
Speak to our experts

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Ask an expert

Emil Espes, M.Sc.

Area Sales Manager
Business Development, Imaging

Some application areas for MetalJet E1+ 160 kV

Imaging

Scattering and diffraction

Spectroscopy and fluorescence

Customer support

Our MetalJet and NanoTube X-ray sources are designed to ensure the highest levels of performance and reliability. Whenever regular maintenance, troubleshooting or optimization are required, our team of highly experienced engineers is available to provide on-site or remote support in every market where our technologies are installed.

Get support

The Excillum MetalJet E1+ 160 kV is partly based on technology developed in a project that has received funding from the ECSEL Joint Undertaking (JU) under grant agreement No 826589. The JU receives support from the European Union’s Horizon 2020 research and innovation programme and France, Germany, Austria, Italy, Sweden, Netherlands, Belgium, Hungary, Romania, Israel