A cold cathode is a cathode in a gas-filled electron tube that is not heated by a filament. The voltage potential within the tube is sufficient to ionize the gas and cause the current to flow.

In this case, it’s a cold cathode audio visualizer, powered by fluorescent tubes doing unexpected things. The build details are a little scant, but we were able to coax an imgur album of [James ...

Some CT tubes are grid controlled for pulsed radiations to reduce the radiation dose. Field emission X-ray tubes (also called cold cathode tubes) In this style, in place of electron emission by ...

The cathode tube was a prime example. By switching on some voltage, scientists could make fluorescent streams of electricity travel from the bottom part of a glass tube to the top -- but no one ...

S. to emerge from the laboratory. With either the Zworykin iconoscope (RCA-Victor) or the Farnsworth cold-cathode dissector tube “high-definition” images equal in clarity to home cinema and 6 ...

Cathodes emit electrons in sputtering systems, cathode ray tubes, and other vacuum tube systems ... cathodes used for field emission in vacuum tubes are called cold cathodes, whereas cathodes used as ...

Argonne develops a breakthrough material for the cathode in lithium-ion batteries. It enables an across-the-board improvement ...

South Korean battery materials producer L&F Company Ltd plans to begin production of nickel-cobalt-manganese (NCM) cathodes ...

Micro-X Limited designs, develops, manufactures, and commercializes healthcare and security markets products using micro-X proprietary cold cathode X ... core X-ray tube and high-voltage generator ...

But there is little you can do for the common cold and other respiratory illnesses, especially once you get sick. Most are caused by viruses, so you cannot cure them with antibiotics, which are ...

A breakthrough in material science could help deliver a new generation of affordable batteries, scientists say. An ...

Sturdy and reliable, the cold-cathode displays found their way into ... the foundation of the Space Race sported the venerable tubes. But time marches on, and a display that requires high voltage ...