title: Peniotron: A Promising Microwave Source with Potential That Has Yet to Be Realized
abstract: The peniotron is a fast-wave vacuum tube that can generate coherent microwave radiation in the millimeter-wave range. Although it uses a beam of gyrating electrons like other gyro-devices (gyrotron, gyro-TWT, gyro-BWO, etc.), its operating principle is completely different from that of electron cyclotron masers. The theory predicts a very high efficiency (about 95%) of the peniotron mechanism of interaction and energy transfer from the electron beam to the wave. However, this extremely attractiv
journal: Applied Sciences