AX-PET

Main content

reconstructed image  
Reconstructed image of the skeleton of a rat injected with F-18, as obtained by the AX-PET prototype.

Head

G. Dissertori and F. Pauss

Status

Active R&D project

Description

Recent years have seen a significant progress in PET (Positron Emission Tomography) instrumentation, boosted by the migration of technologies originally developed for high energy physics experiments into prototype PET devices.

The AX-PET (Axial PET) project is an excellent example in this direction, showing how calorimetry knowledge could be applied for high resolution PET detectors. AX-PET started in 2007 with the goal of constructing a demonstrator for a PET scanner based on the unconventional axial geometry. It uses modules of axially-oriented long LYSO crystals, interleaved by arrays of WLS strips, all read out by Geiger-mode avalanche photodiodes (G-APD). This novel configuration allows a 3-dimensional reconstruction of the gamma interaction point as well as full identification of Compton interactions in the crystals, that can be included in image reconstruction, thus enhancing the sensitivity.

AX-PET  
One AX-PET detector module with a mouse phantom mounted in front of it.
 
 
Page URL: http://www.ipp.phys.ethz.ch/research/ax-pet.html
Thu Jul 20 10:58:39 CEST 2017
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