How to use positron in a sentence

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Sentence Examples The placebo induced a significant release of dopamine from the damaged striatal neurons, detectable by positron emission tomography. If the nucleus of the an atom has too few neutrons to be stable, however, positron emission occurs. He pressed a series of controls and fired his only projectile weapon, a positron grenade, directly behind him. This is a partial list of radionuclides that decay by positron emission and have been used in biomedical imaging studies. The emission of the electron's antiparticle, the positron, is also called beta decay. Solar neutrinos are produced when two protons fuse together to form a deuterium nucleus, a positron, and a neutrino. Rifle stocks, made for use with iron sights, were little help in establishing a constant head positron. More recent and dramatic evidence has come largely through functional magnetic resonance imaging and positron emission tomography. If, on the other hand, there is a hydrogen ion and a positron, the end result is a proton and gamma radiation. Soon, we produced antiprotons in accelerators and finally, in 1995, we combined a positron with an antiproton to produce an antimatter atom. Antimatter also exists and so there is an antiproton, an antineutron and an antielectron often called the positron. A photon can temporarily become an electron and positron which quickly annihilate one another to reform the original photon. The prefix anti is appropriate because an electron and a positron can annihilate each other, disappearing in a burst of energy. We've also requisitioned every watt of power within the city to power the positron cannon. The Health Technology Advisory Committee has published a report on positron emission tomography for oncologic applications. The nuclide can then be detected using existing photon or positron emission tomography methods. The first anti-matter particle discovered was the positron, which has a mass similar to an electron but with a positive charge. Anderson discovered that the collision of an electron and a positron resulted in the annihilation of both particles, with their mass being converted into energy. That means that we do not have the positron capacity to carry out these bone scans. By making two atoms go into collision at high speed one can simultaneously create an electron and a positron. Show More Sentences It is necessary to investigate the relationship between each muscle stiffness and brain activities by electroencephalogram, positron emission tomography, and so on. Four years later Dirac's positron was also found in a cosmic ray shower and in 1933 Dirac was awarded the Nobel Prize in Physics for his extension of atomic theory. His equation also predicted the hitherto undreamed-of positron, and hence the whole concept of antimatter. By the end of 1932, however, Carl Anderson in the United States had discovered the first antiparticle the positron, or antielectron. A positron has the same size and mass of an electron, but an opposite charge. For example ultrasound diagnosis, X-ray diagnosis, scintigraphy, positron emission tomography, nuclear spin tomography, computer tomography. Back in 1928, Dirac had the temerity to take the second solution seriously, and today the beast is a tamed antiparticle known as a positron. The uncertainty in the positron counts are huge at the high energy end of the AMS-02 results. These data show that the positron fraction does indeed rise with energy, just as theory predicts. If pulsars are responsible, theory predicts that the positron fraction should decline steadily at energies above this value. The other one is a positron, a particle which has the same characteristics as the electron, except that its charge is the exact opposite. Each small black loop represents a photon creating an electron and a positron, which then annihilate one another and produce a photon, in what is called a virtual process. 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. So the normally stable proton can decay into a neutron, a positron, and a neutrino if continuously fed enough energy through constant, extreme acceleration. One year later, to the astonishment of physicists, this particle the antielectron, or positron was accidentally discovered in cosmic rays by Carl Anderson of the United States. The second is beta decay, in which the atom emits an electron, which is negatively charged, or its positively charged cousin, the positron. Over the last year the breadth of EGSnrc has been expanded with new capabilities for positron emission tomography, cone beam CT, voxelized human phantoms, and more efficient simulation of ionization chambers. Another highly regarded method was PET, or positron emission tomography. Imagin Molecular Corporation strategy and focus is dedicated to business opportunities in positron emission tomography manufacturing. Well, the best alternative for what we call conventional nuclear medicine procedures, SPECT imaging with technetium or other single-photon tracers, is basically positron emission tomography. Show More Sentences For decades, physicists at CERN and elsewhere have been trying to overcome these limitations with antihydrogen, which consists of a single positron orbiting a single antiproton. Inhibition of dopamine release via 5HT2A receptor agonism has been supported by radioreceptor labeling and positron emission tomography scans. The body's chief source of energy is glucose, and it is possible to get a good idea of local energy consumption by injecting somebody with a form of glucose that contains fluorine-18, another positron emitter. The patient was examined using a positron emission tomographic system. This work led Dirac to predict the existence of the positron, the electron's antiparticle, which he interpreted in terms of what came to be called the Dirac sea. I don't doubt I'd be pants at puffing hard in hot places, and though I do know some cracking science words, like positron, my knowledge of physics is full of black holes. It also served as a showcase for the best worldwide facilities, including the intense positron beam facility at Munich and the positron microprobe at AIST, Japan. The aim of this special collection is to present recent progress made, and reflect current ideas, in research fields where positron and positronium are involved. It was the antiparticle to the electron, later called the positron. Radiography, Computed tomography, Positron emission tomography and Medical ultrasonography are important diagnostic tools developed in the West. Positron emission tomography requires the patient to ingest a radioactive tracer that lands in cells, especially cancer cells. These cyclotrons will focus on isotopes used in Positron Emission Tomography, Single Photon Emission Computed Tomography and Therapy by virtue of their respective energies. Examples from Classical Literature The design of the electron brain had completely ignored the polarity of the positron. These units are the positron, the negatron, and the neutron. Find more words! 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Words that rhyme with positron What is the plural of positron? What is the noun for positron? Use our Sentence Generator Nearby Words positivity positivistic positivist positivism positive thinking positives positronic posits posole posology poss posse 8-letter Words Starting With p po pos posi posit positr positro