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Technical University of Munich

Analysis with neutrons

Two scientists sit in front of a PC and analyze the results of a sample.
Prompt gamma activation analysis for the measurement of trace elements. © Astrid Eckert / TUM
A scientist prepares the sample for the experiment
The sample is prepared for the experiment. © Astrid Eckert / TUM
A scientist positions the sample in the sample holder.
The sample must be placed correctly in the sample holder for the experiment. © Astrid Eckert / TUM
A scientist positions the loaded sample holder in the instrument.
The loaded sample holder is positioned in the instrument. © Astrid Eckert / TUM
A scientist removes the sample holder after the experiment.
Removal of the sample holder after the experiment has been carried out. © Astrid Eckert / TUM
After irradiation, the chemical fingerprint can be recognized in the form of a spectrum. © FRM II / TUM

Thanks to the high neutron flux, the FRM II with its 26 unique instruments offers a diverse portfolio of analytical investigation methods for simple to very complex materials. The experiments can be carried out on samples on the entire length scale from 10-10 m up to component sizes of several decimeters.

Typical methods used here include

  • Neutron radiography
  • Neutron tomography for imaging (2D and 3D)
  • Diffraction for phase analysis and residual stress measurement
  • Small-angle scattering to determine nanoscale objects
  • Neutron depth profile analysis for lithium distribution on the surface
  • Prompt-gamma-activation analysis for the measurement of trace elements.

Very special sample environments (furnaces, testing machines, potentiostats, electric fields, magnets, gas atmospheres, hydrogen loading station) can easily be used to support in-situ and operando studies.

 

In addition, radioisotopes can be produced in the irradiation facilities or the doping of samples can be offered.

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