Channeling effect

{
  "id": "MLC-T-CHM-001874",
  "term": "Channeling effect",
  "field": "Chemistry",
  "definition": "A phenomenon in which an energetic, well-collimated ion or electron beam aligned with a principal axis or plane of a single crystal penetrates farther than in an amorphous solid, because the interaction cross sections with the lattice atoms drop sharply. The effect cuts the backscattering yield from a well-ordered crystal to a few percent of the random-direction value, which Rutherford backscattering spectrometry uses to assess crystal quality.",
  "subject": "Analytical Chemistry",
  "references": [
    "PAC, 2021, 93, 69. 'Vocabulary of radioanalytical methods (IUPAC Recommendations 2020)' on page 74 (https://doi.org/10.1515/pac-2019-0302)"
  ],
  "url": "https://mlchart.com/terminology/chemistry/channeling-effect/"
}