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PET doesn't use antimatter, at least it doesn't use it directly. It uses regular radioactive tracers.
by joelthelion 11mo ago
PET doesn't use antimatter, at least it doesn't use it directly. It uses regular radioactive tracers.
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- Romain_Winler 11mo agoPET stands for Positron Emission Tomography. The radioactive tracers emit positrons (antimatter), which then annihilate with electrons to produce the gamma rays that are detected. So it does use antimatter, just indirectly through the decay process.
- joelthelion 11mo agoI am familiar with PET. As we both agree, PET does not use antimatter directly, so this article is irrelevant to it (which is what the original comment was asking about).
- secult 11mo agoIndeed, it would be quite difficult to smuggle some antimatter to a tumor. I'm saying that research in this particular area eventually led to practical application, PET scans.
- ben_w 11mo agoQuite difficult, but also already in experiment: https://home.cern/science/experiments/ace https://home.cern/science/experiments/ace
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