Observation of vapor pressure enhancement of rare-earth metal-halide salts in the temperature range relevant to metal-halide lamps

Journal Article · Mon Feb 20 00:00:00 EST 2012 · Applied Physics Letters

DOI:https://doi.org/10.1063/1.3687171· OSTI ID:22025446

Curry, J J; Henins, A; Hardis, J E ^[1]; Estupinan, E G ^[2]; Lapatovich, W P ^[3]; Shastri, S D ^[4]

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1. National Institute of Standards and Technology, Gaithersburg, Maryland 20899 (United States)
2. Osram Sylvania Inc., Beverly, Massachusetts 01915 (United States)
3. Independent Consultant, 51 Pye Brook Lane, Boxford, Massachusetts 01921 (United States)
4. Advanced Photon Source, Argonne National Laboratory, Argonne, Illinois 60439 (United States)

Total vapor-phase densities of Dy in equilibrium with a DyI{sub 3}/InI condensate and Tm in equilibrium with a TmI{sub 3}/TlI condensate have been measured for temperatures between 900 K and 1400 K. The measurements show strong enhancements in rare-earth vapor densities compared to vapors in equilibrium with the pure rare-earth metal-halides. The measurements were made with x-ray induced fluorescence on the sector 1-ID beam line at the Advanced Photon Source. The temperature range and salt mixtures are relevant to the operation of metal-halide high-intensity discharge lamps.

• OSTI ID: 22025446
• Journal Information: Applied Physics Letters, Vol. 100, Issue 8; Other Information: (c) 2012 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0003-6951
• Country of Publication: United States
• Language: English

Related Subjects

75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
ADVANCED PHOTON SOURCE
DENSITY
DYSPROSIUM
DYSPROSIUM IODIDES
FLUORESCENCE
INDIUM IODIDES
MIXTURES
RADIOLUMINESCENCE
TEMPERATURE DEPENDENCE
THULIUM
VAPOR PRESSURE
X RADIATION