effective gamma
1Gamma correction — Gamma correction, gamma nonlinearity, gamma encoding, or often simply gamma, is the name of a nonlinear operation used to code and decode luminance or tristimulus values in video or still image systems. [cite book | title = Digital Video and HDTV …
2Gamma ray — Gamma rays (denoted as gamma;) are a form of electromagnetic radiation or light emission of frequencies produced by sub atomic particle interactions, such as electron positron annihilation or radioactive decay. Gamma rays are generally… …
3Gamma-ray astronomy — is the astronomical study of the cosmos with gamma rays. Early history Long before experiments could detect gamma rays emitted by cosmic sources, scientists had known that the universe should be producing these photons. Work by Eugene Feenberg… …
4Gamma knife — Gamma Knife® (or Leksell Gamma Knife®) is a device used to treat brain tumors with a high dose of radiation therapy in one day. The device was invented by Lars Leksell, a Swedish neurosurgeon, in 1967 at the Karolinska Institute in Sweden. Gamma… …
5Gamma Trianguli Australis — Constelación Triangulum Australe Ascensión recta α 15h 18min 54,6s Declinación δ 68º 40’ 46’’ Distancia …
6gamma-Glutamylmethylamide — IU …
7Gamma-Hydroxybutyric acid — γ Hydroxybutyric acid Systematic (IUPAC) name 4 Hydroxybutanoic acid …
8Effective action — In quantum field theory, the effective action is a modified expression for the action, which takes into account quantum mechanical corrections, in the following sense: In classical mechanics, the equations of motion can be derived from the action …
9gamma 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… …
10Gamma (satellite) — Infobox Space telescope name = Gamma caption = organization = RKA major contractors = alt names = nssdc id = location = Earth orbit orbit type = height = 375 km period = velocity = accel gravity = launch date = 11 July 1990 launch location =… …
