MetalJet E1 160 kV
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Introducing MetalJet E1 160 kV.
Get 10 to 70 times more flux than with conventional X-ray sources

At 700 watts, the new MetalJet E1 delivers 10 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 70 times.

Built for 24/7 continuous performance
The MetalJet E1 is designed for high-throughput industrial operations with more than 6-month preventive maintenance cycles. This eliminates the need for frequent filament changes as required by conventional tubes.

Sub-µm positional stability
Although running at a high thermal load of 700 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 1.9×10¹⁰ 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	0-700 W	Min. focus-object distance	22.5 mm
Max current	4.4 mA	Beam angle	20°

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	–

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 limited to 700 W.
3) Standard deviation.
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.

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	700	1.4×10¹⁰	1.3×10⁷
	160	25	570	2.2×10¹⁰	1.1×10⁷
	120	20	380	2.5×10¹⁰	8.8×10⁶
	70	20	250	1.7×10¹⁰	6.5×10⁶
	70	10	150	3.3×10¹⁰	4.4×10⁶
ExAlloy-G1	160	30	700	3.8×10¹⁰	3.9×10⁷
	160	25	570	5.6×10¹⁰	3.4×10⁷
	120	20	380
	70	20	250	4.1×10¹⁰	1.4×10⁷
	70	10	150	7.1×10¹⁰	9.6×10⁶

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	700	8.9×10⁹	8.5×10⁶
	160	25	570	1.5×10¹⁰	7.2×10⁶
	120	20	380	1.6×10¹⁰	5.7×10⁶
	70	20	250	1.1×10¹⁰	4.0×10⁶
	70	10	150	2.0×10¹⁰	2.7×10⁶
ExAlloy-G1	160	30	700	3.0×10¹⁰	3.1×10⁷
	160	25	570	4.6×10¹⁰	2.7×10⁷
	120	20	380	5.0×10¹⁰	1.9×10⁷
	70	20	250	3.2×10¹⁰	1.1×10⁷
	70	10	150	5.5×10¹⁰	7.4×10⁶

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	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	700	5.9×10⁹	6.4×10⁶
	160	25	570	8.3×10⁹	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	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	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	700	8.4×10⁹	7.8×10⁶
	160	25	570	1.2×10¹⁰	6.7×10⁶
	120	20	380	1.3×10¹⁰	4.3×10⁶
	70	20	250	7.3×10⁹	1.9×10⁶
	70	10	150	1.2×10¹⁰	1.3×10⁶
ExAlloy-G1	160	30	700	6.7×10⁹	7.0×10⁶
	160	25	570	8.7×10⁹	6.0×10⁶
	120	20	380
	70	20	250	6.1×10⁹	1.6×10⁶
	70	10	150	1.0×10¹⁰	1.1×10⁶

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	700	8.2×10⁹	5.9×10⁶
	160	25	570	1.1×10¹⁰	5.0×10⁶
	120	20	380	8.7×10⁹	2.0×10⁶
	70	20	250	6.4×10⁸	1.1×10⁵
	70	10	150	1.1×10⁹	7.2×10⁴
ExAlloy-G1	160	30	700	5.6×10⁹	4.4×10⁶
	160	25	570	7.8×10⁹	3.7×10⁶
	120	20	380
	70	20	250	4.5×10⁸	8.3×10⁴
	70	10	150	8.3×10⁸	5.2×10⁴

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 4:1. Actual spot size may differ depending on viewing angle and may have different width and height. Please contact us for more details.

Characteristics

Installation and operation

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.

Safety and compliance

Excillum’s X-ray sources are compliant with the Machinery Directive 2006/42/EC, RoHS Directive 2011/65/EU and Low Voltage Directive 2014/35/EU. Excillum’s X-ray sources are a sub-assembly and therefore excluded from the EMC Directive 2014/30/EU, hence also conform to the definition of partly completed machinery and so should not be CE marked. Our X-ray sources are intended for system integration into customer equipment. The system integrator is solely responsible for final certification and safety compliance. X-rays emitted from the source are harmful for the human body and it is the sole responsibility of the system integrator to comply with all regulations and to protect all personnel during operation. The X-ray source may be subject to local government radiation hazard regulations.

Data sheet

MetalJet E1

Brochure

MetalJet technology

Some MetalJet E1 160 kV application areas

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