Attenuation | U.S. Geological Survey
0:05
Attenuation | U.S. Geological Survey
When you throw a pebble in a pond, it makes waves on the surface that move out from the place where the pebble entered the water. The waves are largest where they are formed and gradually get smaller as they move away. This decrease in size, or amplitude, of the waves is called attenuation. Seismic waves also become attenuated as they move away ...
usgs.gov2019年9月30日
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SOLVED: 'The linear attenuation coefficient of water is 0.206/cm at 6OkeV: In a CT image; two tissues differ in their CT number by 29. What is the difference between their linear attenuation coefficients? Answer: 0.006 cm-1'
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