Radioisotope Center {փWv
Radioisotope Center

Since the enormous earthquake hit the Northern East areas of Japan, we started to monitor the radiation dose rates in our campus, and opened the results to the public.

The radiation dose rates are monitored everyday at the following spots @, A and B in Nagaoka University of Technology.
Radiation dose rates (micro sievert per hour)
The table indicates radiation dose rates in air at the spots, and the values are shown by micro sievert/hour (Sv/h).
The recommended limit of radiation dose rate in a place of daily life is
250 Sv/3 months.

Date Point @ Point A Point B
2/28
0.07 0.07 0.07
3/14
12:00-13:00
0.04 0.05 0.05
3/15
12:00-13:00
0.05 0.05 0.06
3/16
12:00-13:00
0.05 0.05 0.05
3/17
12:00-13:00
0.05 0.05 0.05
3/18
12:00-12:40
0.04 0.05 0.04
3/19
11:30-12:30
0.05 0.05 0.04
3/20
11:30-12:30
0.04 0.05 0.05
3/21
11:30-12:30
0.05 0.06 0.05
3/22
11:30-12:30
0.05 0.06 0.07
3/23
11:30-12:30
0.05 0.05 0.04
3/24
11:30-12:30
0.04 0.05 0.05
3/25
11:30-12:30
0.05 0.05 0.05
3/26
11:30-12:30
0.04 0.04 0.04
3/27
11:30-12:30
0.05 0.05 0.05
3/28
11:30-12:30
0.04 0.05 0.05
3/29
11:30-12:30
0.06 0.05 0.06
3/30
11:30-12:30
0.05 0.05 0.06
3/31
11:30-12:30
0.04 0.05 0.06

Usual levels measured are between 0.05-0.07 Sv/h.
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