electron radiography n.
A radiographic imaging process in which the incident x-rays are converted to a latent charge image and developed by a special printing process to eliminate background fog and image noise.
- Electron-ray tube
[ih-lek-tron-rey] /ɪˈlɛk trɒnˌreɪ/ noun, Electronics. 1. a small cathode-ray tube having a fluorescent screen on which the pattern varies with the voltage applied to the grid: used chiefly in radio receivers to indicate accuracy of tuning.
noun, Physics. 1. the flipping back and forth between two spin directions of electrons in a magnetic field when electromagnetic radiation of the proper frequency is applied. Abbreviation: ESR. noun 1. a technique for investigating paramagnetic substances by subjecting them to high-frequency radiation in a strong magnetic field. Changes in the spin of unpaired electrons […]
noun 1. a telescope in which an infrared image of a distant object is focused on the photosensitive cathode of an image tube. noun 1. an astronomical telescope with an attachment for converting the infrared radiation emitted from the surface of planets into a visible image
noun 1. an electronic device that consists, typically, of a sealed glass bulb containing two or more electrodes: used to generate, amplify, and rectify electric oscillations and alternating currents. noun 1. an electrical device, such as a valve, in which a flow of electrons between electrodes takes place Also called vacuum tube Sometimes shortened to […]