出典:Wiktionary
出典:『Wiktionary』 (2025/04/13 17:38 UTC 版)
出典:Wikipedia
出典:『Wikipedia』 (2011/04/02 04:40 UTC 版)
Gyrotrons are high powered vacuum tubes which emit millimeter-wave beams by bunching electrons with cyclotron motion in a strong magnetic field. Output frequencies range from about 20 to 250 GHz, covering wavelengths from microwave to the edge of the terahertz gap. Typical output powers range from tens of kilowatts to 1-2 megawatts. Gyrotrons can be designed for pulsed or continuous operation.