Abstract
The operation of a gyrotron requires a strong, stable magnetic field over time. Working in the CW mode requires complex/cryogen solenoid cooling systems. Working in the pulse mode is possible with a simple solenoid, but only for short pulses, typically up to 50 μs. In this article, an intermediate working point for the gyrotron is presented: a pulsed gyrotron with a simple uncooled solenoid, which is capable of producing relatively long pulses of 10 ms. To power a longer pulse with a simple solenoid, a supercapacitor (SC)-based system has been designed, which enables the extension of the operation of pulsed gyrotrons to tens of milliseconds, while keeping the system simplicity, without a cooling system for the solenoid. The setup was realized and a 27-ms current pulse of 1.1 kA was obtained through a gyrotron with a simple copper solenoid with a stability of 0.3%. A 5-kW/10-ms radiation pulse at 28 GHz was measured from the gyrotron. This setup enables the use of a rather simple solenoid and a gyrotron and still obtains a rather long radiation pulse. This concept may open a new regime for pulsed gyrotrons.
Original language | English |
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Article number | 8834846 |
Pages (from-to) | 4928-4931 |
Number of pages | 4 |
Journal | IEEE Transactions on Electron Devices |
Volume | 66 |
Issue number | 11 |
DOIs | |
State | Published - Nov 2019 |
Keywords
- Gyrotron
- long pulse
- magnetic field
- millimeter wave
- solenoid
All Science Journal Classification (ASJC) codes
- Electronic, Optical and Magnetic Materials
- Electrical and Electronic Engineering