A cathode is the electrode from which a conventional current leaves a polarized electrical device such as a lead-acid battery. This definition can be...

A cathode-ray tube (CRT) is a vacuum tube containing one or more electron guns, which emit electron beams that are manipulated to display images on a...

Cathode rays or electron beams (e-beam) are streams of electrons observed in discharge tubes. If an evacuated glass tube is equipped with two electrodes...

Cathodic protection (CP; /kæˈθɒdɪk/ ) is a technique used to control the corrosion of a metal surface by making it the cathode of an electrochemical cell...

In vacuum tubes and gas-filled tubes, a hot cathode or thermionic cathode is a cathode electrode which is heated to make it emit electrons due to thermionic...

Cathodic arc deposition or Arc-PVD is a physical vapor deposition technique in which an electric arc is used to vaporize material from a cathode target...

A cold cathode is a cathode that is not electrically heated by a filament. A cathode may be considered "cold" if it emits more electrons than can be supplied...

heated electron-emitting cathode and an anode. Electrons can flow in only one direction through the device – from the cathode to the anode. Adding one...

A Nixie tube (English: /ˈnɪk.siː/ NIK-see), or cold cathode display, is an electronic device used for displaying numerals or other information using glow...

electronics, cathode bias (also known as self-bias, or automatic bias) is a technique used with vacuum tubes to make the direct current (dc) cathode voltage...

the first subatomic particle to be found. In 1897, Thomson showed that cathode rays were composed of previously unknown negatively charged particles (now...

the electrical circuit through the cathode into the non-metallic part of the electrochemical cell. At the cathode, the reduction reaction takes place...

response in single kHz, and were superseded by the oscilloscope which used a cathode-ray tube (CRT) as its display element. The Braun tube, forerunner of the...

the German physicist Wilhelm Conrad Röntgen. The first-generation cold cathode or Crookes X-ray tubes were used until the 1920s. These tubes work by ionisation...

hollow cathode effect allows electrical conduction at a lower voltage or with more current in a cold-cathode gas-discharge lamp when the cathode is a conductive...

as hot cathodes. However, cold cathode tubes have cathodes that emit electrons only due to the large voltage between the electrodes. The cathodes will be...

discharges are used as a source of light in devices such as neon lights, cold cathode fluorescent lamps and plasma-screen televisions. Analyzing the light produced...

(with a polymer gel as an electrolyte), a lithium cobalt oxide (LiCoO 2) cathode material, and a graphite anode, which together offer high energy density...

A hollow-cathode lamp (HCL) is type of cold cathode lamp used in physics and chemistry as a spectral line source (e.g. for atomic absorption spectrometers)...

using a cathode-ray tube as a receiver, the concept of using one as a transmitter was novel. The first cathode-ray tube to use a hot cathode was developed...

English physicist William Crookes and others around 1869–1875, in which cathode rays, streams of electrons, were discovered. Developed from the earlier...

hot-filament ionization gauge, sometimes called a hot-filament gauge or hot-cathode gauge, is the most widely used low-pressure (vacuum) measuring device for...

The cathode-ray tube amusement device is the earliest-known concept for an interactive electronic game, as well as the first game concept to incorporate...

with two electrodes, a heated cathode and a plate, in which electrons can flow in only one direction, from the cathode to the plate. Among many uses,...

can use metallic lithium for the anode and oxides or sulfides for the cathode, increasing energy density. The solid electrolyte acts as an ideal separator...

In electronics, a decoupling capacitor is a capacitor used to decouple (i.e. prevent electrical energy from transferring to) one part of a circuit from...

tube which had a perforated cathode. When an electrical potential of several thousand volts is applied between the cathode and anode, faint luminous "rays"...

equilibrium under standard conditions of an electrochemical cell in which the cathode reaction is the half-reaction considered, and the anode is a standard hydrogen...

Cathodic protection (CP) is a technique to control the corrosion of a metal surface by making it the cathode of an electrochemical cell. Cathodic protection...

Cathodic modification within chemistry is the retardation of anodic reaction as the result of an increase in the ability of an alloy to be passivated by...