Performance of a Lanthanum Bromide Detector and a New Conception Collimator for Radiopharmaceuticals Molecular Imaging in Oncology
- Dep. of Experimental Medicine, 'Sapienza' University of Rome and INFN, p.le Aldo Moro 5, Rome 00185 (Italy)
- Department of Physics, 'Sapienza' University of Rome and INFN, p.le Aldo Moro 5, Rome 00185 (Italy)
- INFN and ENEA, via Anguillarese 301, Casaccia (Rome) 00060 (Italy)
- Department of Radiology, 'Sapienza' University of Rome, p.le Aldo Moro 5, Rome 00185 (Italy)
- Department of Physics, University of Bologna and INFN, via Zamboni, 33, Bologna 40126 (Italy)
- Department of Physics, University of Padova and INFN, via Marzolo 8, Padova 35131 (Italy)
- Department of Electronic Engineering, University 'Roma 3', via della Vasca Navale 84, Rome 00146 (Italy)
We have realized and tested a new-design compact gamma camera for high resolution SPET (Single Photon Emission Tomography), and small animals' radio-pharmaceutical molecular imaging. The camera is based on a 'continuous' Lanthanum tri-Bromide crystal, and a new Low Energy (LE) collimator. The crystal is interfaced to a 2x2 array of Hamamatsu-H8500 position sensitive photo-multipliers. The lead collimator features parallel hexagonal 1.0 mm holes, 18 mm length, 0.2 mm septa and 10x10 cm{sup 2} detection area. It was newly designed to fully exploit the high spatial resolution a Lanthanum crystal may provide. To better evaluate its role, we have compared our camera to three other systems with similar crystals and photomultipliers, but employing traditional collimators, either pinhole or parallel. The new camera seems to be complementary to pinhole systems and shows a very attractive trade-off between spatial resolution and detection area.
- OSTI ID:
- 21289579
- Journal Information:
- AIP Conference Proceedings, Vol. 1099, Issue 1; Conference: CAARI 2008: 12. international conference on application of accelerators in research and industry, Fort Worth, TX (United States), 10-15 Aug 2008; Other Information: DOI: 10.1063/1.3120080; (c) 2009 American Institute of Physics; Country of input: International Atomic Energy Agency (IAEA); ISSN 0094-243X
- Country of Publication:
- United States
- Language:
- English
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