Wide-Band Heterodyne-Radiometer with Fast Frequency-Switching Local Oscillator for Electron Cyclotron Emission Diagnostics

Author

Wataya, Y. ; Idei, Hiroshi ; Inagaki, Shun ; Shimozuma, Takashi ; Nagayama, Y. ; Kawahata, K.

Author_Institution

Kyushu Univ., Kasuga

fYear

2006

fDate

18-22 Sept. 2006

Firstpage

501

Lastpage

501

Abstract

In the report, a backward wave oscillator (-100 GHz) was used as a local oscillator. In this work, a fast-switching local oscillator part in lower frequency range was built for higher time resolution. The lower frequency becomes wide-band in millimeter-wave range (-100 GHz) using millimeter multipliers. The local-frequency part plays an important role to determine the frequency switching-time, step-width and total range in the ECE measuremt. The frequency switching of the lower local-frequency part is mainly discussed in this report.

Keywords

heterodyne detection; plasma devices; plasma diagnostics; plasma temperature; radiometers; backward wave oscillator; electron cyclotron emission diagnostics; frequency switching; heterodyne radiometer; Cyclotrons; Electron emission; Frequency measurement; Frequency synthesizers; Local oscillators; Plasma diagnostics; Plasma measurements; Plasma temperature; Radiometry; Wideband;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared Millimeter Waves and 14th International Conference on Teraherz Electronics, 2006. IRMMW-THz 2006. Joint 31st International Conference on

Conference_Location

Shanghai

Print_ISBN

1-4244-0400-2

Electronic_ISBN

1-4244-0400-2

Type

conf

DOI

10.1109/ICIMW.2006.368709

Filename

4222443