Quick search Find article
Quick search
Find article

Infrared losses from a Na/Sc metal-halide high intensity discharge arc lamp

D J Smith1, G A Bonvallet and J E Lawler

Show affiliations


A study of the near-infrared (IR) emission from the arc of a metal-halide high intensity discharge (MH-HID) lamp with a sodium/scandium chemistry is reported. Radiometrically calibrated spectra from 0.7 to 2.5 μm were recorded as a function of position on the arc tube of a 250 W lamp. These spectra were analysed to determine the relative densities of Na and Sc atoms and the arc temperature as a function of radius. Information from these spectra, combined with absorption measurements in the companion paper (Bonvallet and Lawler 2003), were used to determine the absolute output power in the near-IR from the MH-HID lamp.


PACS

52.80.Mg Arcs; sparks; lightning; atmospheric electricity

82.33.Xj Plasma reactions (including flowing afterglow and electric discharges)

42.72.Ai Infrared sources

52.25.Os Emission, absorption, and scattering of electromagnetic radiation

Subjects

Optics, quantum optics and lasers

Plasma physics

Chemical physics and physical chemistry

Dates

Issue 13 (7 July 2003)

Received 21 February 2002

Published 18 June 2003



  1. Infrared losses from a Na/Sc metal-halide high intensity discharge arc lamp

    D J Smith et al 2003 J. Phys. D: Appl. Phys. 36 1519

  2. Kick stability in groups and dynamical systems

    Leonid Polterovich and Zeev Rudnick 2001 Nonlinearity 14 1331

  3. Momentum Transfer of an Atom Moving in an Optical Cavity

    Zhang Jing-Tao and Xu Zhi-Zhan 2001 Chinese Phys. Lett. 18 1069

  4. Optical absorption spectroscopy on a metal-halide high intensity discharge arc lamp using synchrotron radiation

    G A Bonvallet and J E Lawler 2003 J. Phys. D: Appl. Phys. 36 1510

  5. Spectroscopic studies of carbon-13 synthetic diamond

    A T Collins et al 1988 J. Phys. C: Solid State Phys. 21 1363

  6. Microstructural effects on the flow law of power-law fluids through fibrous media

    Z Idris et al 2004 Modelling Simul. Mater. Sci. Eng. 12 995

  7. The connexion between positronium and the condensation of oxygen on silica and alumina powders

    C E Haynes et al 1994 J. Phys.: Condens. Matter 6 2277

  8. A new approach in atomic configuration interaction calculations

    D J Newman and C D Taylor 1972 J. Phys. B: At. Mol. Phys. 5 2332

  9. Phase Modulation in High-resolution Optical Interferometry

    G Basile et al 1991 Metrologia 28 455

  10. A single thermometer wet bulb globe temperature (WBGT) index meter

    L A Kuehn et al 1971 J. Phys. E: Sci. Instrum. 4 293

View by subject




Export








Please login to access our web services, or create an account if you don't yet have one.

You must have cookies enabled in your web browser to be able to login.

Username
Password

Forgotten your password? Get a new one here.