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TAKE THE QUIZ“single photon”
The following 2 entries include the term single photon.
single photon absorptiometry
noun: a scanning technique using photons of a single energy to measure the density of a material and especially bone
single photon emission computed tomography
noun: a medical imaging technique that is used especially for mapping brain function and that is similar to positron-emission tomography in using the photons emitted by the agency of a radioactive tracer to create an image but that differs in being able to detect only a single photon for each nuclear disintegration and in generating a lower-quality image —abbreviation SPECT
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Merriam-Webster unabridged
