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 cm2 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. © 2009 American Institute of Physics.
Performance of a lanthanum bromide detector and a new conception collimator for radiopharmaceuticals molecular imaging in oncology / Pani, Roberto; Pellegrini, Rosanna; Paolo, Bennati; Cinti, Maria Nerina; Raffaele, Scafe; DE VINCENTIS, Giuseppe; Francesco, Navarria; Giuliano, Moschini; Valentino Orsolini, Cencelli; Francesco De, Notaristefani; Paolo, Rossi. - STAMPA. - 1099:(2009), pp. 488-491. (Intervento presentato al convegno 20th International Conference on the Application of Accelerators in Research and Industry, CAARI 2008 tenutosi a Fort Worth, TX nel 10 August 2008 through 15 August 2008) [10.1063/1.3120080].
Performance of a lanthanum bromide detector and a new conception collimator for radiopharmaceuticals molecular imaging in oncology
PANI, Roberto;PELLEGRINI, Rosanna;CINTI, Maria Nerina;DE VINCENTIS, Giuseppe;
2009
Abstract
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 cm2 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. © 2009 American Institute of Physics.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
