Coded aperture imaging transcends planar imaging with conventional collimators in efficiency and Field of View (FOV). We present experimental results for the detection of 141 keV and 122 keV γ-photons emitted by uniformly extended 99mTc and 57Co …
We describe a setup which consists of two CdTe based gamma cameras with coded apertures and a video camera. The system is used for the localization of radioactive sources via triangulation. By adjusting the mask-to-detector distance the maximum Fully …
We describe a system consisting of two CdTe based gamma cameras with coded apertures and a video camera. The system is used for the localization of radioactive sources with the aid of triangulation. The methods used and the performance of the system …
The development of instruments utilizing coded apertures has become more feasible with the progress of the Cd(Zn)Te hybrid detector technology. The collective performance of systems comprised by such devices can be evaluated in all the fields where …
Several small gamma cameras for radioguided surgery using CdTe or CdZnTe have parallel or pinhole collimators. Coded aperture imaging is a well-known method for gamma ray source directional identification, applied in astrophysics mainly. The increase …
We review the feasibility studies performed regarding the ability of a proposed portable radiation CdTe pixelated detecting system to localize radioactive sources. The proposed instrument is a stack of ten CdTe layers …
We present the development of a stacked gamma radiation detecting system, consisting of three layers of pixelated Cadmium Telluride detectors (PID350). A high speed (120 frames/s) data acquisition system has been developed in order the …
We present simulation studies on the ability of a proposed portable radiation detecting instrument to reconstruct images of radioactive sources. The instrument is a stack of ten CdTe layers placed 2 cm apart, consisting of 10000 …
Simulation studies are presented regarding the performance of algorithms that localize point‐like radioactive sources detected by a position sensitive portable radiation instrument (COCAE). The source direction is estimated by using the List Mode …
We present results on the reconstructed image resolution of a position sensitive radiation instrument (COCAE) based on extensive simulation studies. The reconstructed image resolution has been investigated in a wide range of incident photon energies …