Positron
41positron emission tomography — (PET) tomography accomplished by detection of gamma rays emitted from tissues after administration of a natural biochemical substance (e.g., glucose, fatty acids) into which positron emitting isotopes have been incorporated. The paths of the… …
42Positron Emission Tomography — technique for creating detailed images of bodily tissues by injecting positron laden material into the body and recording the gamma rays emitted over a period of about two hours (Medicine) …
43positron emission tomography — pozitroninė tomografija statusas T sritis Standartizacija ir metrologija apibrėžtis Tomografija, kai įvairiomis kryptimis užregistruota pozitronų ir elektronų susidūrimo sukelta gama spinduliuotė apdorojama kompiuterinėmis programomis taip, kad… …
44positron disintegration — pozitroninis skilimas statusas T sritis chemija apibrėžtis Atomų branduolių skilimas, kurio metu išsiskiria pozitronai, o protonai virsta neutronais. atitikmenys: angl. positron disintegration rus. позитронный распад …
45positron emission — pozitronų emisija statusas T sritis fizika atitikmenys: angl. positron emission vok. Positronenemission, f rus. испускание позитронов, n pranc. émission de positrons, f …
46positron spectrum — pozitronų spektras statusas T sritis fizika atitikmenys: angl. positron spectrum vok. Positronenspektrum, n rus. спектр позитронов, m pranc. spectre positronique, m …
47positron decay — pozitroninis skilimas statusas T sritis fizika atitikmenys: angl. positron decay vok. Positronenzerfall, m rus. позитронный распад, m pranc. désintégration positogène, f; désintégration positrogène, f …
48positron emission tomography — noun using a computerized radiographic technique to examine the metabolic activity in various tissues (especially in the brain) • Syn: ↑PET • Hypernyms: ↑imaging, ↑tomography * * * the process of producing a PET scan. Cf. PET scanner. * * *… …
49positron — noun Etymology: positive + tron (as in electron) Date: 1933 a positively charged particle having the same mass and magnitude of charge as the electron and constituting the antiparticle of the electron called also antielectron …
50positron — noun /ˈpɒz.ɪ.trɒn,ˈpɑ.zɪ.trɑn/ The antimatter equivalent of an electron, having the same mass but a positive charge …
