cathode glow space
1cathode glow — noun : a thin layer of luminosity immediately surrounding the cathode in a Crookes tube * * * a luminous region between the Aston dark space and the Crookes dark space in a vacuum tube, occurring when the pressure is low …
2cathode glow — a luminous region between the Aston dark space and the Crookes dark space in a vacuum tube, occurring when the pressure is low. * * * …
3Cathode ray — Cathode rays (also called an electron beam or e beam) are streams of electrons observed in vacuum tubes, i.e. evacuated glass tubes that are equipped with at least two electrodes, a cathode (negative electrode) and an anode (positive electrode)… …
4Cathode heater — A cathode heater is a filament used to heat the cathode in a vacuum tube or cathode ray tube. Before transistors and integrated circuits came into widespread use, electronic devices used vacuum tubes. The cathode element had to achieve the… …
5crookes dark space — ˈkru̇ks noun Usage: usually capitalized C Etymology: after Sir William Crookes died 1919 English physicist physics : a dark space between the cathode glow and the negative glow called also cathode dark space * * * Physics. the dark space between… …
6aston dark space — ˈastən noun Usage: usually capitalized A Etymology: after Francis W. Aston died 1945 English chemist and physicist : a nonluminous layer between the cathode surface and the cathode glow in a vacuum tube * * * Physics. the dark region between the… …
7Crookes dark space — noun the dark space in a vacuum tube between the cathode and the negative glow, occurring when pressure is very low. Also, Crookes space, cathode dark space, cathodic dark space. {named after Sir William Crookes, 1832–1919, English chemist and… …
8Crookes dark space — Physics. the dark space between the cathode glow and the negative glow in a vacuum tube, occurring when the pressure is low. Also called Crookes space. [1890 95; after Sir W. CROOKES] * * * …
9Aston dark space — Physics. the dark region between the cathode and the cathode glow in a vacuum tube, occurring when the pressure is low. [named after F. W. ASTON] * * * …
10Cold cathode — This article is about light sources and indicators. For cold cathode ion sources, see Ion source. CCFL redirects here. For other uses, see CCFL (disambiguation). Cold cathode fluorescent lamp A cold cathode is a cathode used within nixie tubes,… …
