Interferometric measurement of the velocity of radiating particles

Electro-optical system for measuring very small Doppler shift displacements of spectral wavelengths emitted by atoms and ions in high velocity plasma beam is discussed. Operation of circuits is described and circuit diagram is included

Doppler shift system

A system is described for measuring velocities of radiating particles based on Doppler shift. Light from the particles is directed through a narrow band optical filter to a Fabry-Perot interferometer initially tuned to a selected center line corresponding to zero particle Doppler shift. The movable mirror of the interferometer is made to sweep about the center line by the output of a modulation oscillator. The fringe pattern output is imaged onto a pin hole through which light is directed to a photomultiplier. The output of the photomultiplier is supplied to a phase sensitive detector with the oscillator output as a reference signal and which operates in the quadrature mode. The detector's output is gain controlled and is combined with the oscillator's output to adjust the interferometer's movable mirror to acquire the line center

Plasma boundary interactions - 2

Model of plasma boundary interaction

The study of plasma-boundary interactions Quarterly report, 1 Sep. - 30 Nov. 1967

Electrode drag force measurements in boundary interactions of pulsed accelerator plasm

The study of plasma boundary interactions Quarterly report, 1 Mar. - 31 May 1968

Determination of arc velocity of rotating plasma by back emf and time of flight method

Physical Electronics

Contains reports on two research projects

Physical Electronics

Contains reports on three research projects

Physical Electronics

Contains reports on four research projects

Physical Electronics

Contains reports on four research projects