Design of a 460 GHz second harmonic gyrotron oscillator for use in dynamic nuclear polarization

Author

Hornstein, M.K. ; Bajaj, V.S. ; Griffin, R.G. ; Kreischer, K.E. ; Mastovsky, I. ; Shapiro, M.A. ; Temkin, Richard J.

Author_Institution

Plasma Sci. & Fusion Center / Francis Bitter Magnet Lab., MIT, Cambridge, MA, USA

fYear

2002

fDate

26-26 Sept. 2002

Firstpage

193

Lastpage

194

Abstract

We report the design of a gyrotron oscillator for continuous operation at 460 GHz at a power level of up to 50 W. The gyrotron oscillator will be used in dynamic nuclear polarization (DNP) NMR (nuclear magnetic resonance) studies with a 700 MHz (/sup 1/H), 16.5 T NMR spectrometer and will operate at the second harmonic of the electron cyclotron frequency.

Keywords

NMR spectrometers; cyclotron resonance; dynamic nuclear polarisation; gyrotrons; submillimetre wave generation; submillimetre wave oscillators; submillimetre wave tubes; 16.5 T; 460 GHz; 50 W; 700 MHz; DNP; NMR spectrometers; continuous operation second harmonic gyrotron oscillators; dynamic nuclear polarization applications; electron cyclotron frequency second harmonic; gyrotron power output/frequency; nuclear magnetic resonance; submm-wave generation; Boring; Electron beams; Frequency; Gyrotrons; Magnetic fields; Magnetic separation; Oscillators; Polarization; Structural beams; Superconducting magnets;

fLanguage

English

Publisher

ieee

Conference_Titel

Infrared and Millimeter Waves, 2002. Conference Digest. Twenty Seventh International Conference on

Conference_Location

San Diego, CA, USA

Print_ISBN

0-7803-7423-1

Type

conf

DOI

10.1109/ICIMW.2002.1076150

Filename

1076150