Title :
Simulation-based and experimental evaluation of HiSens, a new CdZnTe gamma-camera architecture
Author :
Robert, C. ; Montémont, G. ; Rebuffel, V. ; Buvat, I. ; Guérin, L. ; Verger, L.
Author_Institution :
CEA, LETI, LDET, F-38054 Grenoble, France
Abstract :
The performances of standard gamma-cameras are limited by the well-known trade-off between spatial resolution and sensitivity resulting from the collimator. To overcome this limitation, we have previously proposed a new approach named HiSens, which consists in the association of a pixelated CZT detector, new collimation geometry and dedicated reconstruction algorithms. Two major characteristics of the CZT detector are taken advantage of in this architecture: the availability of the depth of interaction (DOI) information and the fine pixelization.
Keywords :
Cameras; Collimators; Gamma ray detection; Gamma ray detectors; Geometry; Image reconstruction; Performance evaluation; Reconstruction algorithms; Solid modeling; Spatial resolution;
Conference_Titel :
Nuclear Science Symposium Conference Record, 2008. NSS '08. IEEE
Conference_Location :
Dresden, Germany
Print_ISBN :
978-1-4244-2714-7
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2008.4774219