Oscillators – Molecular or particle resonant type
Patent
1978-01-30
1980-04-01
Davie, James W.
Oscillators
Molecular or particle resonant type
H01S 300
Patent
active
041964004
ABSTRACT:
An improvement to the chemical pump as currently used to pump a gas laser cavity is achieved by employing a chemical pump with a fluidized bed, i.e., a bed of particles of a reactive material wherein the particles are suspended in a column by an inert driving fluid. The driving fluid which is nonreactive with the particles of reactive material can be selected from the group consisting of helium and argon. In addition to its function to fluidize the particles of reactive material, the driving fluid can function for some designs to load or unload the particle bed material. The reactive material is selected from the materials consisting of lithium, sodium, potassium, rubidium, cesium, calcium, strontium, barium, titanium, zirconium, hafnium, and alloys of the same which are reactive with the laser effluent gases which include various mixtures of hydrogen, deuterium, nitrogen, hydrogen fluoride, deuterium fluoride, and other combustion products. The reactive materials form solids or liquids from the effluent gases which are brought into intimate contact with the fluidized bed. Fluidization of the bed results from flow of the laser effluent gases as augmented by the driving fluid to maintain the proper fluidization and particle motion to maintain the reaction required for retention of the low pressure necessary for efficient operation of the laser. The particle motion also serves to reduce the temperature gradients in the bed and increases the heat transfer from the bed to the container walls.
REFERENCES:
patent: 3429654 (1969-02-01), Friedrichsen et al.
patent: 3992685 (1976-11-01), Ogren et al.
patent: 4031484 (1977-06-01), Freiberg et al.
Davie James W.
Edelberg Nathan
Gibson Robert P.
Voigt Jack W.
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