Crossword clues for klystron
Wiktionary
n. (context physics English) an electron tube used to amplify microwave-frequency electromagnetic radiation.
WordNet
n. an electron tube used to generate or amplify electromagnetic radiation in the microwave region by velocity modulation
Wikipedia
thumb|upright=2|5kW klystron tube used as power amplifier in UHF television transmitter, 1952. When installed, the tube projects through holes in the center of the cavity resonators, with the sides of the cavities making contact with the metal rings on the tube.
A klystron is a specialized linear-beam vacuum tube, invented in 1937 by American electrical engineers Russell and Sigurd Varian, which is used as an amplifier for high radio frequencies, from UHF up into the microwave range. Low-power klystrons are used as oscillators in terrestrial microwave relay communications links, while high-power klystrons are used as output tubes in UHF television transmitters, satellite communication, and radar transmitters, and to generate the drive power for modern particle accelerators.
In a klystron, an electron beam interacts with radio waves as it passes through resonant cavities, metal boxes along the length of a tube. The electron beam first passes through a cavity to which the input signal is applied. The energy of the electron beam amplifies the signal, and the amplified signal is taken from a cavity at the other end of the tube. The output signal can be coupled back into the input cavity to make an electronic oscillator to generate radio waves. The gain of klystrons can be high, 60 dB (one million) or more, with output power up to tens of megawatts, but the bandwidth is narrow, usually a few percent although it can be up to 10% in some devices.
A reflex klystron is an obsolete type in which the electron beam was reflected back along its path by a high potential electrode, used as an oscillator.
The name klystron comes from the stem form κλυσ- (klys) of a Greek verb referring to the action of waves breaking against a shore, and the suffix -τρον ("tron") meaning the place where the action happens. The name "klystron" was suggested by Hermann Fränkel, a professor in the classics department at Stanford University when the klystron was under development.
Usage examples of "klystron".
Only Kulat, whose back was to the door, kept up his litany of complaints as a smiling Gul Marak walked into the gambling hall accompanied by the Klystron ambassador.
If an influential world like Klystron, for example, were to openly repudiate this spurious Bajoran claim to the territory in question, were to abandon the trade negotiations now, then I think the Cardassian government could guarantee very attractive terms indeed.
The light Doc used was an adaptation of the klystron rays, the new development of focusing invisible electrons into a steady beam.
With higher authorization, I've taken a Navy plane wave generator and klystron and the necessary black boxes and cobbled them together.
One of them merely phasered the housing loose and flung it out into space, then all four people leaped upon the Klystrons and began ripping them loose, replacing them with new units that continuously beamed into easy reach beside them.