x-ray emission
61gamma ray — Physics. 1. a photon of penetrating electromagnetic radiation (gamma radiation) emitted from an atomic nucleus. 2. a photon emitted by an electron as a result of internal conversion. 3. electromagnetic radiation with wavelengths shorter than… …
62X-ray computed tomography — For non medical computed tomography, see Industrial CT Scanning. catSCAN redirects here. For the Transformers character, see Transformers: Universe. X ray computed tomography Intervention A patient is receiving a CT scan for cancer. Outsid …
63Cathode ray tube — Cutaway rendering of a color CRT: 1. Three Electron guns (for red, green, and blue phosphor dots) 2. Electron beams 3. Focusing coils 4. Deflection coils 5. Anode connection 6. Mask for separating beams for red,… …
64Low-mass X-ray binaries — Binaire X à faible masse Une binaire X à faible masse, ou LMXB (de l anglais Low Mass X ray Binary) est une étoile binaire rayonnant dans le domaine des rayons X (ce que l on appelle une binaire X), dont un des deux membres est une étoile à… …
65Fermi Gamma-ray Space Telescope — Pour les articles homonymes, voir Fermi. Fermi Gamma ray Space Telescope …
66Near edge X-ray absorption fine structure — NEXAFS (Near Edge X ray Absorption Fine Structure) is an element specific electron spectroscopic technique which is highly sensitive to bond angles, bond lengths and the presence of adsorbates. It is widely used in surface science and has also… …
67Ultra-luminous X-ray source — Source X ultralumineuse En astrophysique, une source X ultralumineuse (de l anglais Ultraluminous X ray source), abrégée ULX désigne un objet astrophysique extrêmement lumineux dans le domaine des rayons X qui n est pas le trou noir supermassif… …
68Ultra-luminous x-ray source — Source X ultralumineuse En astrophysique, une source X ultralumineuse (de l anglais Ultraluminous X ray source), abrégée ULX désigne un objet astrophysique extrêmement lumineux dans le domaine des rayons X qui n est pas le trou noir supermassif… …
69Thermionic emission — Closeup of the filament on a low pressure mercury gas discharge lamp showing white thermionic emission mix coating on the central portion of the coil. Typically made of a mixture of barium, strontium and calcium oxides, the coating is sputtered… …
70Field emission — (FE) is the emission of electrons from the surface of a condensed phase into another phase due to the presence of high electric fields. In this phenomenon, electrons with energies below the Fermi level tunnel through the potential barrier at the… …
