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| Content Provider | IEEE Xplore Digital Library |
|---|---|
| Author | Gonzalez, A.J. Conde, P. Hernandez, L. Sanchez, F. Benlloch, J.M. Majewski, S. Aguilar, A. Garcia-Olcina, R. Torres, J. |
| Copyright Year | 2014 |
| Description | Author affiliation: Inst. for Instrum. in Mol. Imaging (I3M), Valencia, Spain (Gonzalez, A.J.; Conde, P.; Hernandez, L.; Sanchez, F.; Benlloch, J.M.) || DSDC, Univ. de Valencia, Burjassot, Spain (Aguilar, A.; Garcia-Olcina, R.; Torres, J.) || Center for Adv. Imaging, West Virginia Univ., Morgantown, WV, USA (Majewski, S.) |
| Abstract | We report two approaches for a high-resolution, position sensitive, gamma ray detector, based on solid estate photosensors and scintillation crystals. Scintillation photons are detected with a custom-made array of 144 SiPMs (12×12) covering an area of $5×5cm^{2}.$ Individual SiPM signals are processed with 3 multiplexing ASICs. The performance of such assemble has been compared with a standard array of also 144 SiPM from SensL and a diode readout (AiT instruments) with 24 outputs corresponding to the number of rows and columns. The standard configuration easily permits to distinguish pixels of $1.57×1.57mm^{2}$ with a timing resolution of 1.2ns. The custom configuration can hardly resolve pixels of $1.57×1.57mm^{2}$ but reached a promising timing resolution of 750ps. This readout has the advantage to allow programing small array regions reducing the dark noise contribution. When 6×6 SiPMs are enabled, 1mm pixels are well resolved. Both approaches showed an energy resolution as good as 10%. |
| Starting Page | 2159 |
| Ending Page | 2162 |
| File Size | 1084805 |
| Page Count | 4 |
| File Format | |
| ISBN | 9781479901623 |
| DOI | 10.1109/ICSENS.2014.6985466 |
| Language | English |
| Publisher | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Publisher Date | 2014-11-02 |
| Publisher Place | Spain |
| Access Restriction | Subscribed |
| Rights Holder | Institute of Electrical and Electronics Engineers, Inc. (IEEE) |
| Subject Keyword | Crystals Positron emission tomography Detectors Standards Energy resolution Application specific integrated circuits Photonics PET SiPM arrays photosensor gamma ray detectors |
| Content Type | Text |
| Resource Type | Article |
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