Eye lens dosimetry for workers at Fukushima Daiichi Nuclear Power Plant—2: Field study using humanoid phantoms

We performed a field study of eye lens dosimetry for workers involved in the decommissioning operation at the Fukushima Daiichi Nuclear Power Plant. In this study, humanoid phantoms equipped with different personal dosemeters were placed at selected locations in the workplace. The experiment showed...

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Bibliographic Details
Published in:Radiation measurements 2020-06, Vol.134, p.106305, Article 106305
Main Authors: Tsujimura, Norio, Hoshi, Katsuya, Aoki, Katsunori, Yoshitomi, Hiroshi, Tanimura, Yoshihiko, Yokoyama, Sumi
Format: Article
Language:English
Subjects:
Eye lens dosimetry
Fukushima Daiichi Nuclear Power Plant
Personal dosemeter
Phantom
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Summary:We performed a field study of eye lens dosimetry for workers involved in the decommissioning operation at the Fukushima Daiichi Nuclear Power Plant. In this study, humanoid phantoms equipped with different personal dosemeters were placed at selected locations in the workplace. The experiment showed that Hp(3) at the head is about 20% higher than Hp(10) (or Hp(3)) at the trunk. This level of dose gradient is generally interpreted as being “almost uniform” in radiological control; therefore, tasks conducted in open areas with such relatively small dose gradients (~1.2) will not require specific monitoring with eye lens dosemeters, except when the eye lens dose approaches the dose limit. •Eye lens dosimetry study at the Fukushima Daiichi Nuclear Power Plant.•Humanoid phantoms equipped with eye lens and whole-body dosemeters.•Comparison of Hp(3) at the head with Hp(10) at the trunk.
ISSN:1350-4487
1879-0925
DOI:10.1016/j.radmeas.2020.106305