Discharge cell for optogalvanic spectroscopy having orthogonal r

Details Discharge cell for optogalvanic spectroscopy having orthogonal r Discharge cell for optogalvanic spectroscopy having orthogonal r

1983-11-30

1986-04-29

Evans, F. L.

Optics: measuring and testing

By dispersed light spectroscopy

With sample excitation

356318, G01J 3443, G01N 2166

Patent

active

045853444

ABSTRACT:
Disclosed is a method and apparatus for an optogalvanic spectroscopy system. Orthogonal geometry exists between the axis of a laser probe beam and the axis of a discharge created by a pair of spaced-apart and longitudinally aligned high voltage electrodes. The electrodes are movable to permit adjustment of the location of a point in the discharge which is to be irradiated by a laser beam crossing the discharge region. The cell dimensions are selected so that the cross-section of the discharge region is substantially comparable in size to the cross-section of the laser beam passing orthogonally through the discharge region.

REFERENCES:
patent: 4148586 (1979-04-01), Green et al.
patent: 4166219 (1979-08-01), Ausschitt
patent: 4402606 (1983-09-01), Zalewski
patent: 4548496 (1985-10-01), Roberts et al.
Cartwright, Journal of Physics E, vol. 9, No. 2, Feb. 1976, pp. 92 and 93.

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