The history of Compton cameras began with the detection of radiation sources originally for
applications in astronomy. A Compton camera is a promising γ-ray detector that operates in …

In the last decade, the development of more compact and lightweight radiation detection
systems led to their application in handheld and small unmanned systems, particularly air …

The study presents a review of research advancements in the field of gamma radiation
detection systems for emergency radiation monitoring, particularly two major sub-systems …

Photomultiplier tubes (PMTs) and silicon photomultipliers (SiPMs) have played essential
roles in various applications, such as fundamental particle physics experiments, nuclear …

Considerable amounts of radioactive substances (mainly 137 Cs and 134 Cs) were
released into the environment after the Japanese nuclear disaster in 2011. Some restrictions …

ABSTRACT The Fukushima Daiichi Nuclear Power Station (FDNPS), operated by Tokyo
Electric Power Company Holdings, Inc., suffered a meltdown as a result of a large tsunami …

Compton imaging is a promising gamma-ray imaging method based on the Compton
scattering kinematics due to high Compton scattering probability for sub-MeV to MeV …

In this paper, we propose a path planning method for the localization of radiation sources
using a mobile robot equipped with an imaging gamma-ray detector, which has a field of …

ABSTRACT X-rays are common tools used in clinical diagnoses. During the X-ray process, a
patient is required to lie still or to hold a deep breath. However, when dealing with patients …

In this study, we qualitatively and quantitatively analyzed unmanned aerial vehicle (UAV)-
based radiation sensor systems suitable for specific survey missions. We examined a variety …