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or backscattering

[bak-skat-er or bak-skat-er-ing] /ˈbækˌskæt ər or ˈbækˌskæt ər ɪŋ/
noun, Physics.
the deflection of nuclear particles or of radiation in a scattering process through an angle greater than 90°.
Origin of backscatter
First recorded in 1955-60; back2 + scatter Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2017.
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backscatter in Science
  1. The deflection of radiation or particles by electromagnetic or nuclear forces through angles greater than 90° to the initial direction of travel.

  2. The radiation or particles so deflected.

The American Heritage® Science Dictionary
Copyright © 2002. Published by Houghton Mifflin. All rights reserved.
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