A liquid xenon detector for PET applications: simulated performance

A. Miceli; A. Andreyev; D. Bryman; J. Glister; L. Kurchaninov; A. Muennich; F. Retiere; V. Sossi

doi:10.1117/12.911662

2 March 2012 A liquid xenon detector for PET applications: simulated performance

A. Miceli, A. Andreyev, D. Bryman, J. Glister, L. Kurchaninov, A. Muennich, F. Retiere, V. Sossi

Proceedings Volume 8313, Medical Imaging 2012: Physics of Medical Imaging; 83130V (2012) https://doi.org/10.1117/12.911662
Event: SPIE Medical Imaging, 2012, San Diego, California, United States

Abstract

We are investigating a liquid xenon (LXe) gamma ray detector-based PET system for small animals. The proposed system consists of 12 modules arranged into a ring. Each detector module is a trapezoidal LXe time projection chamber (TPC) viewed by two arrays of large area avalanche photodiodes (LAAPD). We developed a Geant4-based Monte Carlo code to model the LXe PET system and study its imaging performance. Events depositing energy in multiple locations were reconstructed with a Compton reconstruction algorithm. The simulated data were stored in a list-mode file and reconstructed with the maximum likelihood expectation maximization iterative algorithm (MLEM). Simulation results indicate an absolute sensitivity at the center of the field of view (FOV) of 12.6% and a 3D position resolution ≤ 0.8 mm (FWHM) throughout the FOV. A simulated image of a micro-Derenzo phantom shows that rods of 0.6 mm diameter are visible.

Citation Download Citation

A. Miceli, A. Andreyev, D. Bryman, J. Glister, L. Kurchaninov, A. Muennich, F. Retiere, and V. Sossi "A liquid xenon detector for PET applications: simulated performance", Proc. SPIE 8313, Medical Imaging 2012: Physics of Medical Imaging, 83130V (2 March 2012); https://doi.org/10.1117/12.911662

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