Power Limits in Cylindrical Gyromonotrons Using TEonl Modes.
Abstract
Gyrotron oscillators (gyromonotrons) are of great interest as sources of high power mm-wave radiation for heating and preionization in fusion devices. The total radiation power required for reactor size devices has been estimated at 50 - 100 MW at approx. 150 GHz, far beyond the present state of the art for a single source. Since the feasibility and cost of a heating system may be strongly dependent on the number of devices required, it is of interest to estimate the upper limit of the output power of a single gyromonotron. In this note, we present calculations for such an estimate. In addition, we determine the lower limit on output powers. The detailed calculations are limited to right circular cavities supporting TEon1 modes, but some of the results are directly applicable to other geometries. All calculations are for devices operating near the cyclotron frequency, with a beam energy of 70 keV and negligible velocity spread.
Document Details
- Document Type
- Technical Report
- Publication Date
- Nov 13, 1980
- Accession Number
- ADA092955
Entities
People
- K. J. Kim
- Kworay Chu
- M. E. Read
Organizations
- United States Naval Research Laboratory