electron-ray
91cathode-ray oscilloscope — ▪ instrument electronic display device containing a cathode ray tube (CRT) that generates an electron beam that is used to produce visible patterns, or graphs, on a phosphorescent screen. The graphs plot the relationships between two or… …
92Low-energy electron diffraction — (LEED) is a technique used to characterize the structures of surfaces.History =Davisson and Germer s discovery of electron diffraction= The development of electron diffraction was closely linked to the progress of quantum mechanics and atomic… …
93X-ray machine — An X ray machine is a device used by radiographers to acquire an x ray image. They are used in various fields, notably medicine and security.HistoryShay M. Anderson and Ryan W. Preuninger formulated mathematical equations for X rays. Physicist… …
94Particle-induced X-ray emission — or proton induced X ray emission (PIXE) is a technique used in the determining of the elemental make up of a material or sample. When a material is exposed to an ion beam, atomic interactions occur that give off EM radiation of wavelengths in the …
95Compton Gamma Ray Observatory — General information NSSDC ID 1991 027B Organization NASA …
96Formation evaluation gamma ray — In the field of formation evaluation, gamma ray log records natural radioactivity emission of formation. Measurement of natural emission of gamma rays in oil and gas wells are particularly helpful because shales and sandstones typically have… …
97Transmission electron microscopy — A TEM image of the polio virus. The polio virus is 30 nm in size.[1] Transmission electron microscopy (TEM) is a microscopy technique whereby a beam of electrons is transmitted through an ultra thin specimen, interacting with the specimen as it… …
98Soft 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… …
99X-ray lithography — is a next generation lithography that has been developed for the semiconductor industryref|vlad. Batches of microprocessors have already been produced. The short wavelengths of 0.8 nm X rays overcome diffraction limits in the resolution of… …
100Fermi Gamma-ray Space Telescope — ▪ United States satellite U.S. satellite, launched June 11, 2008, that was designed to study gamma ray emitting sources. These sources are the universe s most violent and energetic objects and include gamma ray bursts (gamma ray burster),… …
