Effect of electron-beam pulsations on the operation of an orotron

Наткнулся на еще одну статью, которая помогла бы пролить свет на этот прибор.
http://adsabs.harvard.edu/abs/1979RaEl...24Q1396R
Как найти эту часть книги, пока не знаю, но в скором времени постараюсь найти.Надеюсь NASA нашла достойное применение этому прибору.

Данные об оптических приборах, основных, на оротроне и ледатроне.

HOT TOPIC

A New Source of THz-FIR Radiation

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J. E. Walsh, J. H. Brownell, J. C. Swartz

Department of Physics and Astronomy,

Dartmouth College, Hanover, New Hampshire 03755-3528

M. F. Kimmitt

Department of Physics, Essex University, Colchester, UK

January 7, 1999

Abstract

A new source of tunable coherent radiation which operates in the THz-FIR region of the
spectrum is described. The device is based on the passage of a small diameter, moderate
current but extremely “bright” electron beam over a diffraction grating. The
beam is produced in a modified scanning electron microscope (SEM) and the grating is
mounted in the focal region of the electron beam. Unlike some earlier devices of this type
where the available output power is limited to the incoherent superposition made by
individual electrons as they move over the grating, the present source operates in a
collective mode in which the output power increases as the 4th power of the beam current.
Present performance levels are reviewed and speculations on future developments are
presented.

Сообщения от NASA

Lower voltage operation of the Ledatron

Mizuno, J.; Kuji, N.; Ono, S.

In: European Microwave Conference, 4th, Montreux, Switzerland, September 10-13, 1974, Proceedings. (A75-19751 07-33) Sevenoaks, Kent, England, Microwave Exhibitions and Publishers, Ltd., 1974, p. 46-50.

We have successfully observed the millimeter wave oscillation in the Ledatron due to the TEM-02 field distribution of the Fabry-Perot mode, which had been predicted by our theory of operation. Through operation of this mode, we can reduce an electron accelerating voltage about 10 per cent to obtain the same oscillating frequency without any change of grating structures. The increase of the start-oscillation current is small when proper configuration of the resonator is chosen. The resonant characteristic of the grating has been examined experimentally and theoretically. So far an output power of around 300 milliwatts has been obtained at 300-GHz band.

Keywords: CAVITY RESONATORS, FIELD MODE THEORY, MICROWAVE OSCILLATORS, MICROWAVE TUBES, MILLIMETER WAVES, MODAL RESPONSE, ELECTRIC POWER, FABRY-PEROT INTERFEROMETERS, GRATINGS (SPECTRA), SUBMILLIMETER WAVES, VIBRATION MODE, WAVE GENERATION, WAVE INTERACTION