In the fields of radiation environment monitoring and unknown radioactive materials search,
locating the far-field gamma-ray sources with high accurate coordinates is an important and …

This work presents a novel stereo coded aperture gamma camera based on four detection
modules placed within four quadrants. Each module includes 48× 48 strips of Bi 4 Ge 3 O 12 …

Imaging is an effective way to survey gamma radiation hotspots in nuclear safety, public
health and homeland security applications. The existing gamma imagers either equip a …

Gamma imager capable of monitoring, detection and localization of radioactive sources is of
critical importance for nuclear safety and homeland security with the increasing use of …

Radioactive sources are widely used in industrial and medical applications. In home-land
security, it is important to monitor radioactive source in public areas such as airport to …

Fast and accurate lost radioactive source positioning is of critical importance for the
prevention of radiation damage in the accident. Traditional instruments with low detection …

Gamma hotspots imaging is of dramatic demand in nuclear-related industrial and homeland
security activities such as nuclear facilities monitoring, nuclear emergency response and …

Radioactive source localization plays an important role in tracking radiation threats in
homeland security tasks. Its real-time application requires computationally efficient and …

Radiation detection has largely been a manual inspection process with point sensors such
as Geiger-Muller counters and scintillation spectrometers to date. While their observations of …

In nuclear safety, public health and homeland security, detection of radioactive sources is
essential. The existing systems have limits in FOV and/or sensitivity. Based on gamma …