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Monson, D. J.

Publications and source records attributed to Monson, D. J..

26 records · Page 2
All sourcesNASA NTRSDOE OSTI
NASA NTRS1976

Pulser-sustainer glow discharge operation in static carbon monoxide laser mixtures

Successful operation of the pulser-sustainer concept is reported in large volume static room temperature CO laser mixes. High voltage pulses and ultraviolet sparks at 33 kHz combined with a separate low voltage sustainer electric field produce spatially uniform plasmas in a 3.0 liter volume. Completely independent control of ne and E/N is demonstrated. The tests are preliminary to testing of the concept in supersonic flow.

Monson, D. J.↗
NASA NTRS1976

Potential efficiencies of open- and closed-cycle CO, supersonic, electric-discharge lasers

Computed open- and closed-cycle system efficiencies (laser power output divided by electrical power input) are presented for a CW carbon monoxide, supersonic, electric-discharge laser. Closed-system results include the compressor power required to overcome stagnation pressure losses due to supersonic heat addition and a supersonic diffuser. The paper shows the effect on the system efficiencies of varying several important parameters. These parameters include: gas mixture, gas temperature, gas total temperature, gas density, total discharge energy loading, discharge efficiency, saturated gain coefficient, optical cavity size and location with respect to the discharge, and supersonic diffuser efficiency. Maximum open-cycle efficiency of 80-90% is predicted; the best closed-cycle result is 60-70%.

Monson, D. J.↗