International intercomparisons of integrating radon detectors in the NIRS radon chamber.
An international intercomparison of integrating detectors was conducted at NIRS (National Institute of Radiological Science, Japan) with a 24.4 m(3) inner volume walk-in radon chamber that has systems to control radon concentration, temperature and humidity. During the first intercomparison (05.2007) four groups participated from four countries and for the second intercomparison (10.2007) 17 participants were involved from 11 countries. Most of detectors are in good agreement with each other when compared to the radon level provided by the radon chamber. It appeared that the 70% of detectors are unified within the 20% margin of uncertainty.
National Institute of Radiological Sciences, Inage-ku, Chiba, Japan.
Miroslaw
M
Janik
Shinji
S
Tokonami
Tibor
T
Kovács
Norbert
N
Kávási
Chutima
C
Kranrod
Atsuyuki
A
Sorimachi
Hiroyuki
H
Takahashi
Nobuyuki
N
Miyahara
Tetsuo
T
Ishikawa