emission+of+rays
11positron emission tomographypositron emission comp — PET; = PECT a technique in nuclear medicine for cross sectional imaging that enables a noninvasive assessment and localization of metabolic activity to be made. Originally used to study activity in the brain, PET is now also used for… …
12Neutron stimulated emission computed tomography — (NSECT) uses induced gamma emission through neutron inelastic scattering to generate images of the spatial distribution of elements in a sample.[1] Contents 1 NSECT mechanism 2 Clinical Applications …
13Positron emission — is a type of beta decay, sometimes referred to as beta plus ( beta;+). In beta plus decay, a proton is converted, via the weak force, to a neutron, a positron (also known as the beta plus particle , the antimatter counterpart of an electron), and …
14Atomic emission spectrum — The atomic emission spectrum of an element is the set of frequencies of the electromagnetic waves emitted by atoms of that element. Each atom s atomic emission spectrum is unique and can be used to determine if that element is part of an unknown… …
15Soft X-ray emission spectroscopy — is an experimental technique for determining the electronic structure of materials. It is a form of X ray spectroscopy.UsesX ray emission spectroscopy (XES) provides a means of probing the partial occupied density of electronic states of a… …
16Gamma ray burst emission mechanisms — are theories that explain how the energy from a gamma ray burst progenitor (regardless of the actual nature of the progenitor) is turned into radiation. These mechanisms are a major topic of research as of 2007. Neither the light curves nor the… …
17electron emission — Synonyms and related words: Becquerel ray, Grenz ray, Roentgen ray, X radiation, X ray, actinic ray, alpha radiation, alpha ray, anode ray, beta radiation, beta ray, canal ray, cathode glow, cathode ray, collision emission, cosmic radiation,… …
18cascade gamma rays — pakopinė gama spinduliuotė statusas T sritis fizika atitikmenys: angl. cascade gamma rays; successive gamma rays vok. Kaskaden Gamma Strahlen, m; Kaskaden Gamma Strahlung, f rus. каскадное гамма излучение, n; каскадные гамма лучи, m pranc.… …
19successive gamma rays — pakopinė gama spinduliuotė statusas T sritis fizika atitikmenys: angl. cascade gamma rays; successive gamma rays vok. Kaskaden Gamma Strahlen, m; Kaskaden Gamma Strahlung, f rus. каскадное гамма излучение, n; каскадные гамма лучи, m pranc.… …
20positron 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… …
