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backscatter

Syllabification: back·scat·ter
Pronunciation: /ˈbakˌskadər
 
/

Definition of backscatter in English:

noun

Physics
1Deflection of radiation or particles through an angle of 180°.
Example sentences
  • This inversion technique takes into account atmospheric effects on the radiation and spatial variations in the surface emissivity and backscatter.
  • Different solutions have therefore been published: using the magnetic and magnetic-electrical characteristics of this layer, using the sound velocity of ultrasonic waves, and using the backscatter of ultra-sonic waves.
  • Clear sky forcing is the direct backscatter of solar radiation in clear skies.
1.1Radiation or particles that have been deflected in this way.
Example sentences
  • A lens filter of appropriate laser wavelength may be used over the top of an endoscope viewing port to protect the eye from laser backscatter.
  • Ultrasonic backscatter does react to changes in structure, however it can not be linked to a determined hardness value using the indentation method.
  • Colors are derived from side scan backscatter data, with warmer colors (red and yellow) indicating high backscatter, and cooler colors (blue and purple) indicating low backscatter.
1.2 Photography Light from a flashgun or other light source that is deflected directly into a lens: backscatter causes an underexposed picture with a blizzard effect
More example sentences
  • You will also be able to judge the water clarity - too much backscatter - forget the flash (if you're able to) and go to available light.
  • The holy grail of acoustic swath mapping is to use backscatter more quantitatively; that is, to transform the image into estimates of seafloor properties.
  • Thanks, that is interesting, I had thought that the flash backscatter was the worst aspect.

verb

[with object] Physics Back to top  
Deflect (radiation or particles) through an angle of 180°: (as adjective backscattered) backscattered sound reaches the sonar receiver
More example sentences
  • Monazites were identified in thin section by their very bright backscattered electron images and verified by energy-dispersive spectrometry.
  • Incident solar energy is backscattered away from the earth and acts as a natural cooling mechanism for this area.
  • Lidar uses a pulsating laser source and signals backscattered by molecules and particles are analysed using a specially designed telescope.

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