The cathode ray tube that until recent years served as the principal television and video display device generates its own light. The CRT's electron beam bombards electroluminescent phosphors, which ...

(Nanowerk Spotlight) Heat energy can be converted into electricity with very high efficiency through a temperature-induced electron flow process known as thermionic emission. The basic operating ...

IT has been known for many years 1–5 that when high current densities are drawn from vacuum tubes containing oxide-coated cathodes a green glow may be observed in the anode-cathode interspace. This ...

CERTAIN types of cathode-ray tubes in which the luminous spot on the fluorescent screen is moved by magnetic fields are liable to a peculiar defect, known as 'ion spot' or 'ion burn'. It is now ...