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Low-voltage gyrotrons
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View: Figures


Image of FIG. 1.
FIG. 1.

The ratio as the function of the beam voltage for the pitch ratio  = 1.0 (solid lines); 1.2 (dashed lines) and three first cyclotron harmonics .

Image of FIG. 2.
FIG. 2.

The contours of the maximum efficiency (solid lines) and corresponding values of the Q-ratio (dashed-dotted lines) and the optimal values of normalized cavity length (dashed lines) for gyrotrons operating at the first three cyclotron harmonics. Star and triangle show operating points for the 60 kV and 15 kV designs, respectively.

Image of FIG. 3.
FIG. 3.

The power and the output efficiency as functions of the beam voltage for 203 GHz fundamental harmonic gyrotron (solid lines—α = 1.2, dashed lines—α = 1.0; triangles—microwave power; diamonds—efficiency).

Image of FIG. 4.
FIG. 4.

The power and the output efficiency as functions of the beam voltage for a 395 GHz second harmonic gyrotron (solid lines—α = 1.4, dashed lines—α = 1.2; triangles—microwave power, diamonds—efficiency).

Image of FIG. 5.
FIG. 5.

Ratio of the width of the Gaussian profile at the 0.6 level to the length of the cavity straight section in the plane of “the angle of the input taper versus the angle of the output taper.”


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752b84549af89a08dbdd7fdb8b9568b5 journal.articlezxybnytfddd
Scitation: Low-voltage gyrotrons