Monitoring radiation at all Sites of NIMS
Started monitoring air radiation level at all Sites of NIMS from Sep. 2011.
2022.06.09 UpdateWe have been monitoring the radiation dose rate at NIMS Sengen-site since the accident at Fukushima nuclear power plant No.1. We have now started to measure the air radiation dose rate at all sites of NIMS including Sengen-site, Namiki-site, and Sakura-site.
Announcement
The Nano Characterization Field & Light/Quantum Beam Field of the Research Center for Advanced Measurement and Characterization are involved with this measurement of air radiation dose rate. Because the measuring method and instrument are different from that of Sengen-site mentioned above, we will put the monitoring data separately on this page.
Monitoring Place
| Sengen-site | (on the lawn outdoor) |
| Namiki-site | (on the lawn outdoor) |
| Sakura-site | (on the lawn outdoor) |
Measuring Method
| Instrument | Nal(Tl) scintillation survey meter, ALOKA TCS-172B |
|---|---|
| Dose rate | values including background level of 0.06µSv/h |
| Monitoring cycle | in every two weeks at random times. |
| Measuring height | 0cm, 50cm, 100cm at ground height |
Monitoring Data
µSv/h (Micro sievert/hour; 1 micro sievert = 1/1000 milli sievert)
2022
| Date | Weather | Time | Ground height | Sakura-site | Sengen-site | Namiki-site |
|---|---|---|---|---|---|---|
| MAR 26 NEW | Clody/Rainy, 16℃ | 10:30-11:42 | 0cm | 0.05 | 0.05 | 0.05 |
| 50cm | 0.04 | 0.04 | 0.04 | |||
| 100cm | 0.05 | 0.05 | 0.05 | |||
| MAR 12 NEW | Sunny, 16℃ | 10:41-11:50 | 0cm | 0.05 | 0.05 | 0.05 |
| 50cm | 0.05 | 0.05 | 0.05 | |||
| 100cm | 0.05 | 0.05 | 0.05 | |||
| FEB 23 NEW | Sunny, 8℃ | 10:39-11:35 | 0cm | 0.05 | 0.05 | 0.05 |
| 50cm | 0.03 | 0.05 | 0.04 | |||
| 100cm | 0.04 | 0.05 | 0.05 | |||
| FEB 12 NEW | Sunny, 8℃ | 10:37-11:44 | 0cm | 0.05 | 0.05 | 0.04 |
| 50cm | 0.04 | 0.05 | 0.05 | |||
| 100cm | 0.04 | 0.05 | 0.05 | |||
| JAN 29 NEW | Cloudy, 5℃ | 10:18-11:12 | 0cm | 0.05 | 0.05 | 0.05 |
| 50cm | 0.05 | 0.05 | 0.05 | |||
| 100cm | 0.05 | 0.05 | 0.05 | |||
| JAN 15 NEW | Sunny, 9℃ | 10:25-11:12 | 0cm | 0.05 | 0.06 | 0.04 |
| 50cm | 0.04 | 0.05 | 0.05 | |||
| 100cm | 0.04 | 0.05 | 0.04 |
Radiation monitoring data at other place of NIMS
Related File / Link
2011
Results for Sep. 2011 - Dec. 2011