Monitoring radiation at all Sites of NIMS

Started monitoring air radiation level at all Sites of NIMS from Sep. 2011.

2022.06.09 Update

We 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

Radiation measurement at NIMS Sengen-site

            
                    2021
                
                Results for 2021
            
                    2020
                
                Results for 2020
            
                    2019
                
                Results for 2019
            
                    2018
                
                Results for 2018
            
                    2017
                
                Results for 2017
            
                    2016
                
                Results for 2016
            
                    2015
                
                Results for 2015
            
                    2014
                
                Results for 2014
            
                    2013
                
                Results for 2013
            
                    2012
                
                Results for 2012
            
                    2011
                
                Results for Sep. 2011 - Dec. 2011