The use of sodium lamps for low-intensity laboratory safelighting for optical dating

Authors

  • N. A. Spooner Environmental Geochemistry and Geochronology, Research School of Earth, Australian National University, Camberra
  • D. G. Questiaux Environmental Geochemistry and Geochronology, Research School of Earth, Australian National University, Camberra
  • M. J. Aitken Puy-de-Dome

DOI:

https://doi.org/10.26034/la.atl.2000.321

Abstract

The choice of laboratory illumination for use with optical dating samples involves a compromise between minimising the unwanted bleaching of light-sensitive signals while providing sufficient visibility to allow efficient and safe workplace practice. Described here is a laboratory safelight fulfilling these requirements. The safelight module consists of a low-pressure sodium vapour lamp enclosed within a filtered and shuttered housing, and provides lowintensity (< 1 µW/cm2) yellow-orange light, predominantly from the well-known 589.0 and 589.6 nm sodium D-lines.

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Published

2000-11-15

How to Cite

Spooner, N. A., Questiaux, D. G., & Aitken, M. J. (2000). The use of sodium lamps for low-intensity laboratory safelighting for optical dating. Ancient TL, 18(2), 45–49. https://doi.org/10.26034/la.atl.2000.321

Issue

Vol. 18 No. 2 (2000)

Section

Contributions

License

Copyright (c) 2000 N. A. Spooner, D. G. Questiaux, M. J. Aitken

Creative Commons License

This work is licensed under a Creative Commons Attribution 4.0 International License.