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

Authors

  • 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.

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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

License

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