Optogalvanic effect in a hollow cathode discharge with nonlaser sources

Journal Article · Thu Apr 15 04:00:00 EST 1982 · Appl. Opt.; (United States)

DOI:https://doi.org/10.1364/AO.21.001465· OSTI ID:5232359

Apel, C T; Keller, R A; Zalewski, E F; Engleman, R Jr

Several atomic emission sources were investigated for their potential to induce optogalvanic signals in hollow cathode lamps. The sources included an inductively coupled argon plasma, a H/sub 2/--O/sub 2/ flame, a high-temperature furnace, electrodeless microwave discharge lamps, and hollow cathode lamps. Successful results were obtained with argon emission from the inductively coupled plasma focused into an argon-filled hollow cathode tube and with atomic emission from one hollow cathode discharge focused into a hollow cathode tube containing the same element. Very low level optogalvanic signals were observed from the other sources but could not be unambiguously ascribed to emission from a specific element. A problem encountered was the presence of a background signal due to photoelectric emission and possibly radiative heating of the cathode.

• Research Organization: University of California, Los Alamos National Laboratory, Los Alamos, New Mexico 87545
• OSTI ID: 5232359
• Journal Information: Appl. Opt.; (United States), Journal Name: Appl. Opt.; (United States) Vol. 21:8; ISSN APOPA
• Country of Publication: United States
• Language: English

Related Subjects

640420* -- Fluid Physics-- Properties & Structure of Fluids-- (-1987)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ACTINIDES
ARGON
ARGON IONS
CATHODES
CHARGED PARTICLES
ELECTRIC DISCHARGES
ELECTRODES
ELECTRON EMISSION
ELEMENTS
EMISSION
FLAMES
FLUIDS
GALVANOMAGNETIC EFFECT
GASES
HOLLOW CATHODES
HYDROGEN
IONS
MAGNETO-OPTICAL EFFECTS
METALS
NEON
NONMETALS
OXYGEN
PHOTOELECTRIC EMISSION
PHOTOEMISSION
PLASMA
POWER INPUT
RARE GASES
SECONDARY EMISSION
URANIUM