In comparison to other neutron sources our neutron generators offer solid and important advantages


This sketch shows how our line source neutron generator can replace two or more point sources in a typical conveyor belt application for online prompt gamma neutron activation analysis.

The maximum total neutron output may be reduced; thus reducing the shielding requirement.

The line source enables a more uniform irradiation of the target material. A "wall source" is also available.


Titel: belthalflife[1]


After 2.5 years (22,000 hours) the 252Cf neutron source will have decayed to about half of its original activity. Replacement and safe reprocessing or top-up servicing will be necessary.

The NSD GRADEL FUSION line source neutron generator will still be running at the original neutron output rate. The plasma-gas target is continuously renewed. Other neutron generators, which have solid target technology, will have been renewed at least five times in the same time-frame.

Experience with the Mk0 development neutron generator which was operated for 7,000 hours, before the order to switch it off, gives us the confidence to offer such long life.



  • Line source geometry
  • Short electrode point source geometry configuration optional
  • Higher specific output in the most compact form (at least 10 times more output than other compact NGs)
  • Longest lifetime because there is no solid target to erode
  • No accelerated aging of the target due to frequent thermal cycles (there is no solid target!)
  • Pulsed or non-pulsed options
  • Submersible version available
  • Uniform neutron flux field to cross conveyor belt width
  • Multi-chamber configuration options for uniform wall source or versatile source location
  • Only one neutron generator set needed
  • Lower source strength may save shielding cost
  • Versatile system design options
  • Constant, very stable, very low fluctuating and repeatable neutron output
  • Far superior life time endurance compared with other neutron generators
  • NSD GRADEL FUSION life cycle economics fully competitive