Isothermal gas dynamic laser nozzle

Details Isothermal gas dynamic laser nozzle Isothermal gas dynamic laser nozzle

1974-03-29

1976-10-12

Webster, Robert J.

Oscillators

Molecular or particle resonant type

331 945D, 330 43, 165105, 60267, H01S 304, H01S 3095, H01S 322

Patent

active

039861384

ABSTRACT:
The inventive laser comprises two identical hollow nozzle portions which are positioned in layered fashion (i.e., in stacked condition), in registration, and with their respective longitudinal axes in parallel. Each nozzle portion has a protrusion extending into the void or hollow interior, and coolant flow passages are located in the protrusion. The internal surface of each nozzle portion has a nickel fiber wick sintered to it, and the wick is saturated with a metal, preferably sodium, which is in a liquid state. The unique structure of the inventive nozzle permits a very short transient start and also permits operation of the nozzle at steady-state conditions in an isothermal manner.

REFERENCES:
patent: 3759443 (1973-09-01), Freggens
Meinzer, AIAA Paper No. 71-25, AIAA 9th Aero-Space Sciences Meeting, N.Y., N.Y., Jan. 25-27, 1971 pp. 1-8.
Eastman, Scientific American, vol. 218, No. 5, May 1968, p. 46.

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