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A quadrupole residual gas analyzer for fusion research

Hiden Analytical offers precision quadrupole residual gas analyzers designed for cutting-edge Tokamak fusion research. Our DLS-1 operates in a threshold ionization mass spectrometric (TIMS) mode with real-time quantitation of gas species across a mass range of 1 – 100 atomic mass units (AMU). The unique spectral fingerprints of gases critical to fusion research parameters can subsequently be detected with ease.

With tight control of electron energy as standard, and a choice of ion sources available, the DLS-1 quadrupole residual gas analyzer is the ideal component for advanced fusion research applications.


Fusion is widely considered the golden-standard alternate energy source. By harnessing the compression of hydrogen (H2) to form helium (He), researchers hope to provide a clean sustainable source of energy for the future. Various facilities around the world are continually attempting to turn the theory into reality, but the world’s foremost fusion research system is the tokamak device. Challenges in fusion research based on the classical torus design include high energy deficits and the difficulty involved in the mass separation of deuterium (D2) and helium (4He).

The Hiden DLS series systems are designed for applications in fusion where analysis of hydrogen isotopes and deuterated compounds are of interest. The DLS-1 mass spectrometer is for real time quantitative analysis of complex gas and vapour mixtures in fusion applications, using templates developed for analysis of deuterium in helium and deuterated compounds. This makes it one of the best-in-class solutions for validating fuel purity in fusion research applications.

Quadrupole Residual Gas Analysers from Hiden Analytical

If you would like to learn more about the DLS-1 fusion research tool, browse the features and associated product literature on this page. Or, if you would like to speak to a Hiden Analytical representative about specifications and costing, simply contact us today.


Further Reading

The system is supplied with MASsoft Professional software.

This Windows 10 and Windows 11 compatible software allows control of the instrument via USB 2.0, RS232 or Ethernet. Provides comprehensive I/O for data output and for reading data from external devices for integration and display with mass spectrometer data.

The iRGA software is a new and intuitive application for routine vacuum monitoring. It is designed to be simple and automatic.

  • automatically provides partial pressure data for the common residual gas and vapours, including hydrogen, helium, water, nitrogen, oxygen, argon and a custom gas.
  • includes a new tablet view where the background colour changes depending on alarm condition
  • includes a trend view, scan, leak detection and maintenance modes
  • includes alarm function to send alerts to internal I/O, Wi-Fi and by email