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.

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 ...

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 ...

In this case, only four of the eight on the board are used to control red, white, blue, and green cold cathode tubes. The video after the break shows the device randomly rotating through different ...

In the world of ever-advancing technology, where the best 4K TVs and advanced display tech like MLA and QD-OLED reign supreme ...

cathodes used for field emission in vacuum tubes are called cold cathodes, whereas cathodes used as heated electrodes or filaments are called hot cathodes. Cathodes have several special features. In a ...

In cold field emission electron microscopy ... SEM images are formed when the electron beam position on the sample surface is synchronized with the CRT, or cathode ray tube viewing screen. At each ...

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 ...

No matter your budget or how large a screen you want, here's what to look for when shopping for a television, along with the ...

With more and more manufacturers moving away from CRT (cathode ray tube) monitors in favor of newer ... Said light source ...

A cold begins when a virus attaches to the lining of your nose or throat. A doctor can usually tell if you have the flu based on your symptoms, especially if it’s during peak season. Bird flu ...