A preliminary note on the radioactivity of wrist watches with luminous dials

  • A. Nagaratnam Defence Science Laboratory, New Delhi
DOI: https://doi.org/10.14429/dsj.9.7616
Keywords: Radioactivity, Wrist watch, Luminous dials

Abstract

The activities of 25 wrist watches with luminous dials were experimentally measured. The mean gamma activity was 0.075 microcurie radium equivalent. Under certain simplifying assumptions the radiation dose to the gonads was calculated. The dose is not likely to exceed about 5 milliroentgens per year in the majority of cases.
Published
2014-05-27
How to Cite
Nagaratnam, A. (2014). A preliminary note on the radioactivity of wrist watches with luminous dials. Defence Science Journal, 9(1), 38-39. https://doi.org/10.14429/dsj.9.7616
Issue
Vol 9 No 1
Section
Research Papers
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