Search results for "Positron" - New World Encyclopedia
From New World Encyclopedia
- analysis tools like Electroencephalography (EEG), Positron Emission Tomography (PET), and Functional Magnetic Resonance Imaging (fMRI) to this study. ...35 KB (5,056 words) - 17:58, 26 March 2023
- and new technologies, such as computerized EEG, positron emission tomography, regional cerebral blood flow, and nuclear magnetic resonance imaging, are ...33 KB (4,676 words) - 00:39, 2 May 2023
- where e+ is a positron, γ is a gamma ray photon, νe is a neutrino, and H and He are isotopes of hydrogen and helium, respectively. The energy ...80 KB (12,078 words) - 15:50, 27 April 2023
- example with the pulsed Godiva device) and positron radiation date=March 2008 ) (for example, neutron activation analysis and potassium-argon dating. ...45 KB (6,704 words) - 00:40, 17 November 2022
- predicted the existence of the positron, which was discovered two years later in 1932. Despite this early success, the idea was soon abandoned ...37 KB (5,624 words) - 20:38, 21 April 2020
- [[File:Brain metabolism and drug addiction.jpg|thumb|400px|Brain positron emission tomography images that compare [[Human brain#Metabolism|brain ...52 KB (7,118 words) - 05:48, 15 June 2023
- Uranium (chemical symbol U, atomic number 92) is a silvery metallic chemical element in the actinide series of the periodic table. The heaviest ...48 KB (6,867 words) - 15:33, 16 January 2024
- (usually either a gamma-emitter or a positron emitter). There is a degree of overlap between nuclear medicine and radiology, as evidenced by ...53 KB (7,336 words) - 04:05, 9 November 2022
- , Asimov disliked the word "positron" as the term for the electron's antiparticle. As he explained in the nonfiction work Atom: ...53 KB (8,012 words) - 13:28, 6 March 2024
- predicting the existence of the positron (which had been postulated by Paul Dirac), a formulation that he however did not carry to its natural ...58 KB (8,808 words) - 01:10, 8 February 2023
