To proceed with the decommissioning of the Fukushima Daiichi Nuclear Power Station, it is
necessary to visualize radioactive substances using a gamma camera in high-dose-rate …

ABSTRACT The Fukushima Daiichi Nuclear Power Station (FDNPS), operated by Tokyo
Electric Power Company Holdings, Inc., went into meltdown in the aftermath of a large …

Gamma camera is a useful device to monitor various radiation sources in a wide range of
areas at nuclear facility. To localize and identify radiation sources in large area, angular …

After the nuclear disaster in Fukushima, radiation decontamination has become particularly
urgent. To help identify radiation hotspots and ensure effective decontamination operation …

Abstract The Fukushima Daiichi Nuclear Power Plant was severely damaged during the
2011 Great East Japan Earthquake. However, the ongoing decommissioning work has been …

The development of remote and quick radiation imaging methods for high dose-rate
environments is important to accelerate decommissioning of the Fukushima Daiichi Nuclear …

We present experimental protocols for visualizing various low-level gamma radiation
sources in the ambient environment. Experiments were conducted by using a low-cost, high …

To reduce the exposure doses of workers and to establish decontamination plans, it is
important to understand and visualize the distribution of radioactive substances at the …

With the wide application of the coded-aperture gamma-ray camera in the field of nuclear
radiation monitoring, research on its imaging performance of radioactive point sources has …

The purpose of this study is to perform radiation monitoring by acquiring gamma images and
real-time optical images for 99m Tc vial source using charge couple device (CCD) cameras …