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Fig.
1. Millimeter wave generator G4-143f.
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Fig. 2. Block-diagram of the analyzer.
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Fig. 3. Calibration of the analyzer sensitivity: upper curve
- power of calibrating signals is 0.008mW at all the frequencies,
between neighbouring curves the powers differ by 3dB.
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Fig. 4. Example of the visualization: frequency calibration
of the receiver.
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Fig. 5. Application of the analyzer to the plasma physics:
evolution of spectrum of gyrotron emission in an experiment
on electron cyclotron plasma heating in the tokamak DIII-D,
General Atomics, USA. An event which happens just before the
termination of the heating pulse looks like a momentary crash
of gyrotron functioning: the spectrum decays.
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