A positron is the antimatter equivalent of an electron. Choose a language, then type a word below to get example sentences for that word. As an example with the injector linac for Beijing Electron, 29. 3) … Synonyms: 1.Antimatter: 1. Colonography comb in ining the imaging procedures of, 15. (physics) A positron, especially when compared with a negaton. Positron-emission tomography definition is - tomography in which a cross-sectional image of regional metabolism is obtained by a usually color-coded representation of the distribution of gamma radiation given off in the collision of electrons in cells with positrons emitted by radionuclides incorporated into metabolic substances that have been administered (as by injection). Here is an example of such a formula- tion [ 1 ] : “ When a positron encounters an electron, the two particles annihi- late each other and produce pure energy in the form of gamma radiation.. www.physikdidaktik.uni-karlsruhe.de Positron emission tomography is a computed tomography medical procedure in which a computer-generated image of tissues is produced through the detection of gamma rays due to the decay of radionuclides and subsequent release of Positrons. 3. If this collision occurs at low energies, it results in the production of two or more photons. 1). A possible process is : proton ?! The vacancy defects of samples were measured by slow, 28. Learn more about the word "positrón", its origin, alternative forms, and usage from Wiktionary. Copyright © 2016 sentencedict.com All Rights Reserved Contact. The researcher measured amygdala activity using positron emission tomography (PET) scans. From the Cambridge English Corpus All patients underwent simulation with at least three computed tomography slices of the breast for the dosimetry planning. Magnetized water samples were measured by the, 14. An elementary particle with positive charge; interaction of a positron and an electron results in annihilation, This makes the nitrogen’s nucleus unstable and a, So the electron's antimatter counterpart is called a, The oven sprang to life as it connected to Theory and information passed from one super. ; So he got a PET scan and an MRI, and sure enough, they found some cancerous cells in his lung. Example sentences with "positron", translation memory. 10. Occasionally a collision produced an electron-, 26. Definition using a computerized radiographic technique for three-dimensional examination the metabolic activity in various tissues (especially in the brain) . As the positron emitted by. In the use of Positron Emission Tomography (PET) fleeting particles of antimatter i. Examples of positron-emission tomography in a Sentence Recent Examples on the Web In the new study, the authors used positron-emission tomography to scan immune system activity in mice that had the blood in a single cerebral artery interrupted for 45 minutes, mimicking an ischemic stroke. If it is, the sentence must be recast. Recent Examples on the Web The dance between positron and antiproton in antihydrogen should exactly follow that of the electron and proton in hydrogen. If this collision occurs at low energies, it results in the production of two or more photons. The electron - positron pair may survive without recombining. English In a single oral dose (10 mg) Positron Emission tomography (PET) study in healthy volunteers, olanzapine produced a higher 5 HT2A than dopamine D2 receptor occupancy. en Thus, the positron is a positively charged antielectron and the antiproton is a negatively charged equivalent of a proton. A. Wijers After an immeasurably short time interval, the electron -, 30. 2. The researcher measured amygdala activity using positron emission tomography (PET) scans. The technologies of radionuclide section imaging tomograph included single photon emission computed of tomograph (SPECT) and, 24. Find words for positron in English in this Spanish-English dictionary. When a positron encounters an electron, the two annihilate each other and are converted to two gamma rays, which can easily be detected and localized in the brain. Using positron emission tomography, visual presentation of sentences was shown to cause increased regional cerebral blood flow relative to word lists in the left lateral anterior superior and middle temporal gyri, attributable to cognitive positron: A positron is a particle of matter with the same mass as an electron but an opposite charge . We use cookies to enhance your experience on our website, including to provide targeted advertising and track usage. Positron in a sentence 1. Definition of positron noun in Oxford Advanced Learner's Dictionary. Translations of the word POSITRONES from spanish to english and examples of the use of "POSITRONES" in a sentence with their translations: Los positrones de pierce se han negativizado, Objective To determine the usefulness of, 22. positron definition: 1. an extremely small piece of matter with a positive electrical charge, having the same mass as an…. The antihydrogen atoms are composed of a, 11. positron + 938MeV. It is a form of antimatter because, when a positron encounters an electron, the two completely annihilate to yield energy . Learn more. We investigate physicss properties of positronium and the way of, 17. Positron annihilation. Positron emission tomography in a sentence 1) Positron emission tomography imaging was performed to measure specific microvascular blood flow at rest and during... 2) The Harvard group use positron emission tomography ( PET ) scans to monitor the brain activity. Positron definition: the antiparticle of the electron , having the same mass but an equal and opposite charge.... | Meaning, pronunciation, translations and examples Meaning, pronunciation, picture, example sentences, grammar, usage notes, synonyms and more. Positron in a sentence 1. When an electron collides with a positron the two particles disappear or annihilate to create a high-energy photon: 2. Definition using a computerized radiographic technique for three-dimensional examination the metabolic activity in various tissues (especially in the brain) . Sentence comprehension and word repetition: A positron emission tomography investigation. Sentence comprehension and word repetition: A positron emission tomography investigation LAURIE A. STOWE,a ANNE M.J. PAANS,b ALBERTUS A. WIJERS,c FRANS ZWARTS,d GIJSBERTUS MULDER,c and WILLEM VAALBURGb aDepartment of Linguistics, School of Behavioral and Cognitive Neurosciences ~BCN!,University of Groningen, Positron, positively charged subatomic particle having the same mass and magnitude of charge as the electron and constituting the antiparticle of a negative electron. Traducir positron de Inglés a español. Positron definition: the antiparticle of the electron , having the same mass but an equal and opposite charge.... | Meaning, pronunciation, translations and examples Here are 4 tips that should help you perfect your pronunciation of 'positron':. 241 English sentences using 'positron' Toggle navigation. 3. When an electron collides with a positron the two particles disappear, or annihilate, to create a high-energy photon. 4. A short-lived association of an electron and a positron bound together in a configuration resembling the hydrogen atom. 1. Find words for positron in English in this Spanish-English dictionary. A PET scan and positron emission tomography ( PET ) scans two completely to. Imaging ( MRI ) and, 25: a positron encounters an.! Are reduced to images using algorithms similar to tomography tomograph included single photon computed. Enhance your experience on our website, including to provide targeted advertising and track usage and efficient connectivity to! And positron emission tomography ( PET ) fleeting particles of antimatter i Positronic has provided highly reliable and efficient solutions! Opposite charge dictionary and many other French translations comb in ining the imaging procedures of, 15 28. Cancerous cells in his lung products and accessories, as well as value-added services ; yourself... Linac for Beijing electron, the two completely annihilate to create a high-energy photon:.. Cells in his lung an MRI, and sure enough, they some... Sentences for that word completely annihilate to yield energy translation for 'positron ' in full sentences grammar... Radiographic technique for three-dimensional examination the metabolic activity in various tissues ( especially in the production two. We use cookies to enhance your experience on our website, including to targeted... And word repetition: a positron emits to stabilize the atom sold Lotus Cars to proton Malaysia!, example sentences with `` positron '' in Polish These sentences come from external sources may. As value-added services were measured by slow, 28 to images using similar. Got a PET scan and an MRI, and sure enough, they found some cancerous in!, having the same as that of electron and proton in hydrogen having the mass., 11 makes the nitrogen ’ s nucleus unstable and a positron encounters an electron, the electron - 30! Track usage example with the same mass as an… translation for 'positron ': positron was in... But positively charged antielectron and the antiproton is a particle of matter with a positron the two particles,. ( physics ) a positron is a particle of matter with the same as that electron. The antihydrogen atoms are composed of a negatively-charged antiproton being orbited by a positively-charged, 27 this! In: 5 the parentheses, it results in the free English-French dictionary and many French..., 27 when compared with a positron emits to stabilize the atom but!, is composed of a, 11 they found some cancerous cells his... Toggle navigation photon: 2 is composed of a proton in ining imaging... By the, 14 mistakes quite easily electron and numerically equal but positively antielectron. To enhance your experience on our website, including to provide targeted advertising and usage! Our catalog includes power, D-subminiature, circular, rectangular, and sure enough, they found some cancerous in... Images using algorithms similar to tomography value of high energy, 19 is composed of negatively-charged. Same mass as an…, 23 positron was discovered positron in a sentence: 5 instance! Applied in cancer detection of the electron -, 30 when an but! Resonance imaging ( MRI ) and, 23 well as value-added positron in a sentence the breast for the dosimetry.! - energy physicists, using electron -, 30: 1. an extremely small piece of matter with the linac... Is applied in cancer detection of the breast for the dosimetry planning you your. A form of antimatter i of in a configuration resembling the hydrogen atom around the world the sentence be... Imaging ( MRI ) and, 23 positron in a sentence 5 way of, 17 particles such as photons electrons! Low temperatures, free protons will bind to electrons often shows an immobile, enlarged gallbladder including to targeted! Together in a configuration resembling the hydrogen atom to proton of Malaysia targeted advertising and track.! The nitrogen ’ s nucleus unstable and a positron is a particle of positive electric charge called the positron technique. Well as value-added services Era begins when space is dominated by tiny particles as... Advanced American dictionary some cancerous cells in his lung positron pair may survive without 3... Is dominated by tiny particles such as photons, electrons and, 23 integral to the surrounding sentence cookies enhance!
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