Excillum MetalJet D2+

Bailey FlemingNov 18, 2025

What to do if there is low photon flux in Excillum Laboratory Equipment?

G
Gregory WardNov 18, 2025
If you're experiencing low photon flux relative to electron-beam power in your Excillum Laboratory Equipment, there are several potential causes. One reason could be that the electron beam isn't hitting the metal jet in the optimal position; try adjusting the electron-beam position relative to the metal jet. Another cause might be a contaminated or out-of-order exit window; check the exit window heating current and voltage – if it's not approximately 1.5 A and 4 V, replace the exit window according to the service manual instructions. A large leakage current in electron caused by contamination of high voltage feedthrough, metal electrodes and vacuum chamber, a faulty high-voltage cable or a faulty high-voltage power supply unit may be the reason. In this case, immediately contact Excillum a...

Summary

1 INTRODUCTION

1.3 Product Information

Details about the MetalJet D2+ source, including identification and components.

1.3.1 Product Identification

Information required for product identification with Excillum, including model and serial numbers.

1.3.2 Design and Function

Overview of the MetalJet D2+ system's operation, including its metal-jet anode and electron gun.

2 SAFETY

2.1 Safety Precautions

General safety measures including qualified personnel, partly completed machinery, and manual.

2.1.1 Qualified Personnel

Specifies requirements for personnel involved in installation, commissioning, and operation.

2.1.4 X-ray Radiation

Details hazards of X-ray radiation and precautions, including personal monitoring and protective devices.

2.1.5 Electricity and High Voltage

Covers safety precautions for electrical work, high voltage, and grounding techniques.

2.1.6 High Pressure

Warns about high liquid-metal pressure in the jet system and required personnel for maintenance.

2.1.9 Poisoning Hazard

Warns about the toxicity of beryllium foil in the exit window and handling procedures for breakage.

3 TRANSPORT AND STORAGE

3.1 Transport

Guidelines for transporting the MetalJet D2+ source, including upright position and handling of dangerous goods.

4 INSTALLATION

4.1 Initial Installation Checklist

A checklist for pre-installation and during installation steps to minimize complications.

4.3 Setting up the MetalJet D2+ Source

Instructions for setting up the MetalJet D2+ source after unpacking.

4.3.1 Mounting of Sub-assembly Units

Details on connecting and mounting the electron gun/x-ray head and pump box semi-rigidly.

4.3.2 Connecting Tubing and Cables

Step-by-step guide for connecting various tubing and cables for system assembly.

4.3.2.2 Flex-hose Assembly and Jet-Exit Port

Procedure for connecting the flex-hose assembly to the jet-exit port and attaching the cooling block.

4.3.2.3 Cooling Water Supply and Return

Describes routing and connecting cooling water supply and return hoses to subassemblies.

4.3.2.4 High-Pressure Tubing and Nozzle Assembly

Instructions for connecting the high-pressure tubing to the nozzle assembly using a VCR gasket.

4.3.2.6 Cooling Water

Guidelines for installing and verifying the water cooling solution for system operation.

4.3.2.7 Interconnecting Cables

Instructions for connecting interconnecting cables between system components based on cable part numbers.

4.3.2.10 Mains Supply

Instructions for connecting grounding cables and mains supply to system modules.

4.4 Safety System

Explains the implementation of a customer-supplied safety system interface for the source.

4.4.1 High Voltage Controller

Details the role of the high voltage controller in the safety system, including relays and monitor outputs.

4.5 Operating Conditions

4.6 System Integration

4.6.2 Network Connectivity

Guidelines for connecting the system controller to a local network and remote access.

5 OPERATION

5.1 Introductory Notes on Source Operation

5.1.4 Electron Beam Power vs. Spot Size

5.2 Starting the MetalJet D2+ System

Flowchart illustrating the decision process for starting the MetalJet D2+ system.

5.3 Capabilities of the Software

5.4 Starting the Software and GUI

Step-by-step guide for starting the XCS software and accessing the Graphical User Interface (GUI).

5.5 The States of the Software

5.7 Error Messages

5.8 Parametrization

Procedure for system parametrization, consisting of six steps for setting up cathode and electron optics.

5.8.1 Prepare System for Parametrization

First step in parametrization: setting system to Admin level, desired acceleration voltage, and Lowpower state.

5.8.2 Align Electron Beam to Optical Axis

Aligns electron beam by adjusting alignment coils and focus lens, and centers the electron-beam dump aperture.

5.8.3 Determine Jet Size and Position

Determines liquid-metal jet size and position by sweeping the electron beam across it.

5.8.4 Characterize Focus Lens and Verify Jet Stability

Maps electron-beam spot sizes for different focus settings and verifies jet stability.

5.8.5 Characterize Linefocus Coils

Characterizes linefocus coils to establish correlation between coil settings and electron-beam spot geometry.

5.9 Set Emission Power and Spot Size

Adjusts focus lens for hysteresis and calibrates electron beam spot size and settings.

5.9.1 Recalibrate Spot Size

5.10 Normal Operation

Procedures for normal operation, including turning X-ray generation on/off and changing settings.

5.10.1 Turning On X-ray Generation

5.10.2 Change Emission Power and Spot Size

5.11 System Settings

6 MAINTENANCE AND SERVICE

Summary of Systems and Components Requiring Maintenance

Table summarizing components requiring maintenance and service, with intervals and references.

6.1 Vacuum System

Details maintenance for roughing pump and turbopump, including troubleshooting and replacement recommendations.

6.1.1 Roughing Pump

6.1.2 Turbopump

6.2 Jet System

Maintenance procedures for the jet pump, including lubricants, diaphragm, and check valves.

6.2.1 Jet Pump Lubricants

6.2.2 Jet Pump Diaphragm

6.2.3 Jet Pump Check Valves

6.2.4 Nozzle Assembly

Guidance on nozzle failure, recommendations for replacement, and troubleshooting for contamination.

6.2.5 Particle Filter

6.2.6 Exit Window

6.3 Electron Gun

Maintenance and operation of the electron gun, focusing on the cathode assembly and beam dynamics.

6.3.1 Cathode Assembly

6.4 Climate System

9 CUSTOMER SUPPORT

System Log Files

9.2 Remote Support

Details how to use TeamViewer for remote support and troubleshooting with Excillum.

Brand	Excillum
Model	MetalJet D2+
Category	Laboratory Equipment
Language	English

Brand

Excillum

Model

MetalJet D2+

Excillum MetalJet D2+ - User Manual

Table of Contents

Questions and Answers