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Radioisotope Center
Since the enormous earthquake hit the northeast area of Japan, we started
to monitor the radiation dose rates on our campus, and opened the results
to the public. |
The radiation dose rates are monitored everyday at the following spots
①, ②, ③ and ④ at Nagaoka University of Technology.
*The readings at point ④ are measured by pocket dosimeter. (average dose
per hour)
Since April 11, we have reported only the pocket dosimeter readings at
point ④, since all the values determined at the four points so far have
been similar and lower than usual levels.
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Radiation dose rates (microsieverts per hour)
The figure indicates radiation dose rates in air at the spots, and the
values are shown as microsieverts/hour (μSv/h).
The recommended maximum radiation dose rate in a place of daily life is
250 μSv/3 months.
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Usual levels measured are between 0.05-0.07 μSv/h.
Usual levels measured with the pocket dosimeter are between 0.04-0.08 μSv/h. |
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