Accession Number : ADD003253

Title :   Isothermal Gas Dynamic Laser Nozzle.

Descriptive Note : Patent,

Corporate Author : DEPARTMENT OF THE AIR FORCE WASHINGTON D C

Personal Author(s) : Neal,John W

Report Date : 12 Oct 1976

Pagination or Media Count : 5

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.

Descriptors :   *Patents, *Gas dynamic lasers, *Nozzles, Metal vapors, Sodium, Nickel, Metal fibers

Subject Categories : Lasers and Masers

Distribution Statement : APPROVED FOR PUBLIC RELEASE