A Gamma Camera for medical applications 10 x 10 cm(2) has been built using a triple GEM chamber prototype. The photon converters placed in front of the three GEM foils, has been realized with different technologies. The chamber, High Voltage supplied with a new active divider made in Frascati, is readout through 64 pads, 1 mm(2) wide, organized in a row of 8 cm long, with LHCb ASDQ chip. This Gamma Camera can be used both for X-ray movie and PET-SPECT imaging; this chamber prototype is placed in a scanner system, creating images of 8 x 8 cm(2). Several measurements have been performed using phantom and radioactive sources of Tc-99m (140 keV) and Na-22 (511 keV). Results on spatial resolution and image reconstruction are presented. (c) 2006 Elsevier B.V. All rights reserved.
Anulli, F., Balla, A., Bencivenni, G., Corradi, G., D'Ambrosio, C., Domenici, D., et al. (2007). A triple GEM gamma camera for medical application. In Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment (pp.266-267). AMSTERDAM : ELSEVIER SCIENCE BV [10.1016/j.nima.2006.10.297].
A triple GEM gamma camera for medical application
MORONE, MARIA CRISTINA;SCHILLACI, ORAZIO
2007-01-01
Abstract
A Gamma Camera for medical applications 10 x 10 cm(2) has been built using a triple GEM chamber prototype. The photon converters placed in front of the three GEM foils, has been realized with different technologies. The chamber, High Voltage supplied with a new active divider made in Frascati, is readout through 64 pads, 1 mm(2) wide, organized in a row of 8 cm long, with LHCb ASDQ chip. This Gamma Camera can be used both for X-ray movie and PET-SPECT imaging; this chamber prototype is placed in a scanner system, creating images of 8 x 8 cm(2). Several measurements have been performed using phantom and radioactive sources of Tc-99m (140 keV) and Na-22 (511 keV). Results on spatial resolution and image reconstruction are presented. (c) 2006 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
