PEARL is the new neutron powder diffractometer at the Reactor Institute Delft. The main application of PEARL is in the field of energy materials, through its particular sensitivity to H, Li and magnetic structures. The instrument provides unique capabilities to TU Delft research on sustainable energy, but is also used in national and international collaborations.

Neuton Diffraction

PEARL is pre-eminently suitable for accurately locating lithium in batteries. The atomic resolution of PEARL is used for storage materials for hydrogen and ammonia, and magneto caloric material for energy conversion. Neutron diffraction is an important technique for studying the atomic structure deep underneath the surface of materials and is very sensitive to elements such as hydrogen and lithium in energy materials. The technique is also suited to fields of research such as catalysis, zeolites, thermoelectrics and ferroelectrics.


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PEARL was realised within the OYSTER programme (Optimised Yield – for Science, Technology & Education – of Radiation), for which TU Delft received a grant from the Dutch government in 2012.