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We propose a new compact SiPM array designed and optimized for low energies (e.g. 140 keV) and multi-tracers gamma rays detection. The final purpose of the array is to populate MR compatible SPECT systems. Coupled to a 4 mm thick CsI(Tl) scintillator, the SiPM array presents a Field of View (FOV) of 25 mm × 25 mm, an Usefull Field of View (UFOV) of 20 mm × 20 mm and an intrinsic spatial resolution...
In this work, we present a novel Position-Sensitive Silicon Photomultiplier based on a charge sharing architecture, which we call Linearly-Graded SiPM (LG-SiPM). We produced both 4×4 mm2 and 8×8 mm2 2D LG-SiPM prototypes with this scheme. The LG-SiPM provides high resolution, low distortion and a very fast output signal, which is fundamental for obtaining a good timing performance. To verify the spatial...
A new multi-modality imaging tool is under development in the framework of the INSERT (INtegrated SPECT/MRI for Enhanced Stratification in Radio-chemoTherapy) project, supported by the European Community. A custom SPECT apparatus, used as an insert for commercially available MRI systems, will enhance the treatment of brain tumors (primarily glioma) by offering more effective and earlier diagnosis...
The goal of the HICAM project, supported by the European Community, is the development of a new Anger camera for clinical and research environments and specific applications where high overall spatial resolution and system compactness are required. The camera is based on a matrix of Silicon Drift Detectors (SDDs) coupled to a CsI(Tl) crystal. Two prototypes were developed during the project, with...
We are developing a new Anger camera for nuclear imaging in the framework of the HICAM (HIgh resolution CAMera) project supported by European Community. The camera is foreseen to be employed in applications where high-position resolution (~ 1 mm intrinsic spatial resolution) and camera compactness are of primary concern. The camera is based on the use of monolithic arrays of Silicon Drift Detectors...
We have proposed a new scanner for small-animal positron emission tomography (PET) based on stacks of double sided silicon detectors. Each stack is composed of 40 planar detectors with dimension 60 times 60 times 1 mm3 and 128 orthogonal strips on both sides to read the two coordinates of interaction, the third being the detector number in the stack. Multiple interactions in a stack may be discarded...
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