PRM-9000 Radioactivity measurement in Yonezawa City

Southern

https://www.google.co.jp/maps/place/37%C2%B046'36.5%22N+140%C2%B007'15.2%22E/@3

7.776794,140.120876,215m/data=!3m2!1e3!4b1!4m2!3

m1!1s0x0:0x0?hl=ja

November 8, 2014

Parking of gravel

Ground 1m, shielded by 8mm thick aluminum

0.11μSv/h

Same point

Ground 1m, without shielding (vinyl only)

0.14μSv/h

Same point

Ground 5cm, without shielding (vinyl only)

0.21μSv/h (× 1.9)

Near the dosimeter had shows

0.05μGy/h