back scatter

Science Dictionary
backscatter   (bāk'skāt'ər)  Pronunciation Key 
  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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