Patent ID: 7982877

Claim:
A method for measuring anisotropy of a zone of a surface of an element comprising at least one fissile material, the method comprising: transmitting a beam of light onto the surface; and passing the beam of light reflected by the surface into a polarisation analyser having a modifiable analysis direction, wherein the method further comprises: transmitting the beam from the polarisation analyser to a device for acquiring digital images, acquiring a first digital image of the zone of the surface of the element with a first analysis direction of the polarisation analyser, acquiring a second digital image of the zone of the surface of the element with a second analysis direction of the polarisation analyzer, and processing the first digital image and the second digital image acquired in order to measure the anisotropy by dividing, pixel by pixel, the first digital image by the second digital image in order to form a cartographic image of measurements of the anisotropy of the zone.