MetalJet D1/D2 source platform

The MetalJet D1/D2 source platform is the first fully commercialy available x-ray source based on Excillum's MetalJet technology. It is similar to a standard x-ray tube, but features a liquid-metal-jet anode and advanced electron optics. Within the 5-30 µm spotsize range, it delivers significantly higher brightness and power than any other available microfocus x-ray source on the market. And it does so with an excellent spot quality. This makes it an ideal source for any microfocus application requiring shorter exposure times, higher throughput or better signal to noise. The D1 and D2 versions are esentially the same source but with different form factors.

Features

Extreme microfocus source power

Optional shutter

Superior spot quality

Minimal maintenence

User variable size and aspect ratio of spot

LaB6 long-life cathode

Very stable x-ray emission and spot position

Controlled through GUI or TCP/IP protocol

Integrated radiation shielding

Operated remotely from any computer

Technical Specifications

Overview

Target material¹	Gallium alloy	Min. focal spot size	~ 5 μm
Target type	Liquid jet	Emission stability²	< 1%
Voltage	10-70 kV	Position stability²	< 1 μm
Power	0-300 W	Min. focus-object distance³	18 mm
Max current	4.3 mA	Beam angle	13°

1) Room temperature liquid gallium alloys 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) Standard deviation

3)Without a shutter

Installation and Operation

The source consitsts of the head and the pump system with dimensions shown in the drawing. The head has to be mounted essentially straight above the pump system. The coupling is semi rigid, allowing some movement of the source head.

In addition it consists of two 4U (176 mm height) 19” rack electronics boxes 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 a 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, but needs to be integrated into a system providing the proper interlock connections.

Mains:	AC, single phase, 200-240 V,16 A, 50/60 Hz.
Cooling:	Deionized cooling waterer, 25°C ± 0.2°C, 5-6 liters per minute flow rate.
Ambient:	20-25°C (stable within ± 0.2°C for optimal source stability), max 85% relative humidity.

PERFORMANCE EXAMPLES (@ 70 kV)

Spot size¹

[µm, FWHM]

E-beam power

[W]

Ga-Kα peak brightness

[photons/(s∙mm²∙mrad²∙line)]

10	100	5.2×10¹⁰
20	200	2.6×10¹⁰

1) Actual e-beam spot has a 1:4 aspect-ratio line focus, but the projected spot dimension is essentially circular. True round focal spots for, e.g., large-angle imaging can typically generate ¼ power compared to the numbers above.

spot stability_24h spot shape emission spectrum