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

2017.10.30 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)

Related Image

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)

2017

Date Weather Time Ground height Sakura-site Sengen-site Namiki-site
OCT 28
NEW
Cloudy, 17℃ 11:15-12:40  0cm 0.05 0.06 0.07
 50cm 0.06 0.06 0.06
 100cm 0.06 0.06 0.06
OCT 14 Cloudy, 15℃ 8:33-9:35  0cm 0.06 0.08 0.08
 50cm 0.06 0.07 0.06
 100cm 0.05 0.06 0.06
OCT 1 Cloudy, 22℃ 15:52-18:05  0cm 0.07 0.08 0.09
 50cm 0.05 0.06 0.07
 100cm 0.05 0.06 0.07
SEP 16 Cloudy, 22℃ 9:18-10:40  0cm 0.06 0.07 0.08
 50cm 0.06 0.07 0.08
 100cm 0.06 0.07 0.08
SEP 2 Rain, 17℃ 10:07-11:15  0cm 0.07 0.07 0.08
 50cm 0.07 0.07 0.08
 100cm 0.06 0.06 0.06
AUG 17 Cloudy, 26℃ 10:40-12:02  0cm 0.06 0.07 0.07
 50cm 0.05 0.07 0.07
 100cm 0.05 0.07 0.07
AUG 5 Cloudy, 30℃ 8:50-12:20  0cm 0.07 0.08 0.08
 50cm 0.06 0.07 0.08
 100cm 0.06 0.08 0.07
JUL 23 Cloudy, 29℃ 15:17-16:40  0cm 0.07 0.07 0.10
 50cm 0.06 0.08 0.07
 100cm 0.07 0.07 0.07
JUL 8 Sunny, 30℃ 8:40-10:20  0cm 0.07 0.07 0.09
 50cm 0.05 0.07 0.07
 100cm 0.06 0.07 0.08
JUN 24 Sunny, 29℃ 11:00-15:05  0cm 0.08 0.07 0.08
 50cm 0.07 0.06 0.07
 100cm 0.06 0.06 0.07
JUN 10 Sunny, 25℃ 8:38-10:14  0cm 0.07 0.07 0.10
 50cm 0.06 0.07 0.08
 100cm 0.06 0.07 0.07
MAY 27 Sunny, 21℃ 14:20-16:05  0cm 0.07 0.08 0.09
 50cm 0.07 0.08 0.07
 100cm 0.06 0.07 0.07
MAY 14 Cloudy, 19℃ 15:00-16:26  0cm 0.07 0.07 0.08
 50cm 0.06 0.06 0.07
 100cm 0.06 0.07 0.07
MAY 3 Sunny, 22℃ 11:53-13:14  0cm 0.06 0.08 0.08
 50cm 0.07 0.06 0.07
 100cm 0.06 0.07 0.07
APR 15 Sunny, 22℃ 10:25-12:35  0cm 0.07 0.07 0.09
 50cm 0.06 0.07 0.08
 100cm 0.07 0.07 0.07
APR 1 Cloudy, 8℃ 10:58-12:37  0cm 0.07 0.07 0.09
 50cm 0.07 0.07 0.07
 100cm 0.05 0.07 0.07
MAR 18 Cloudy, 13℃ 11:40-13:10  0cm 0.07 0.08 0.08
 50cm 0.06 0.07 0.08
 100cm 0.07 0.08 0.07
MAR 4 Sunny, 13℃ 11:30-13:25  0cm 0.07 0.09 0.07
 50cm 0.06 0.07 0.08
 100cm 0.06 0.06 0.07
FEB 18 Cloudy, 8℃ 11:25-12:37  0cm 0.07 0.08 0.08
 50cm 0.06 0.09 0.08
 100cm 0.07 0.06 0.07
FEB 4 Sunny, 10℃ 11:25-12:37  0cm 0.07 0.07 0.09
 50cm 0.06 0.07 0.08
 100cm 0.06 0.07 0.08
JAN 21 Sunny, 8℃ 11:50-12:56  0cm 0.06 0.07 0.08
 50cm 0.07 0.08 0.08
 100cm 0.06 0.07 0.07
JAN 7 Sunny, 8℃ 12:10-13:17  0cm 0.07 0.08 0.08
 50cm 0.06 0.07 0.08
 100cm 0.06 0.07 0.07

Radiation monitoring data at other place of NIMS


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

National Institute for Materials Science (NIMS)
1-2-1 Sengen, Tsukuba, Ibaraki 305-0047, JAPAN
TEL.+81-(0)-29-859-2000
FAX.+81-(0)-29-859-2029