Patent ID: 9618463
Date: 2017-04-11
CPC Classifications: G01N,H01J

Claim:
1. Method of acquiring an Electron Backscattering Pattern (EBSP) image and/or a Kossel image of a sample in a charged particle apparatus, the sample showing a flat surface, the charged particle apparatus equipped with an electron column for producing a finely focused electron beam, a position sensitive detector for detecting EBSP patterns and/or Kossel image, and a sample holder for holding and positioning the sample, the method comprising the steps of: positioning the sample with respect to the electron beam, directing the electron beam to an impact point on the sample, thereby causing backscattered electrons and/or X-rays to irradiate the detector, and acquiring the signal from the detector while the beam is kept stationary, the detector is equipped to selectively detect electrons and/or X-rays with an energy above a predefined threshold, and the signal of the electrons and/or X-rays with an energy above said threshold is used to form an EBSP or Kossel image, in which during acquisition of the image the angle between the normal to the flat surface of the sample and the electron beam is less than 45 degrees.