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Definition and Characterization of Focused Beams. Practical Aspects

机译:聚焦光束的定义和表征。实践方面

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Characterization of ultrasonic beams by means of echos coming back from targets is very often used. Results are not independent of shape and size of those targets. Measuring echos from inclined disk-like targets let appear fluctuating results in the very front part of beams. (Atomindex citation 14:720285)

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