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


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