Researchers at the National Institute of Standards and Technology (NIST) have used neutron beam to create holograms that show within a solid body. As usual technique based on laser reproduces only the appearance, the new process would provide more perspectives.
The scientists have published their findings in the journal Optics Express. The researchers constructed an aluminum cylinder with a small spiral staircase on one of its faces. When the neutron beam passes through this device, its particular shape changes the rays. Furthermore, the team also found that the phase difference is greater when the crossing section is thicker. Thus, they concluded that this property would better explore solid objects.
NIST scientists have found a new exploration technique
This discovery adds to the list of scientific techniques for the exploration of solid materials. The team showed that a neutron beam and an interferometer help to create visual representations of the interior of an object. Indeed, the interference change clearly define the internal shape of a solid body.
According to the details provided by Michael Huber, the other available techniques focus mainly on the analysis of the surface. He emphasizes that this new method would be more appropriate for measuring deeper interfaces and small structures whose size is less than 10 microns.
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