RADIOACTIVITY OF LUMINOUS WATCHES AND ESTIMATION OF DOSE TO THE WRIST AND THE GONADS
Journal Article
·
· Phys. in Med. Biol.
The dose distribution in the arm due to a luminous wrist watch was calculated and is shown in graphical form. The theoretical values are compared with those measured in a phantom. The gamma activity of 165 watches was measured, and the average activity was found to be 0.13 mu g radium. The amount of radon leaking out of the watches in ten hours varies from around 1 x 10/sup - 10/ curie per mu g radium for watertight watches to around 3 x 10/sup -8/ curie per mu g radium for loosely sealed watches. The measured gonad dose for male persons is 0.012 mrad/hr for 1 mu g radium on the watch. (auth)
- Research Organization:
- Inst. of Physics, Univ. of Oslo, Blindern, Norway
- NSA Number:
- NSA-15-025057
- OSTI ID:
- 4020629
- Journal Information:
- Phys. in Med. Biol., Journal Name: Phys. in Med. Biol. Vol. Vol: 6
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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