Title
GATE : improving the computational efficiency GATE : improving the computational efficiency
Author
Faculty/Department
Faculty of Medicine and Health Sciences
Publication type
article
Publication
Subject
Physics
Human medicine
Source (journal)
Nuclear instruments and methods in physics research: A: accelerators, spectrometers, detectors and associated equipment
Volume/pages
569(2006) :2 , p. 341-345
ISSN
0168-9002
Carrier
E
Target language
English (eng)
Full text (Publishers DOI)
Abstract
GATE is a software dedicated to Monte Carlo simulations in Single Photon Emission Computed Tomography (SPECT) and Positron Emission Tomography (PET). An important disadvantage of those simulations is the fundamental burden of computation time. This manuscript describes three different techniques in order to improve the efficiency of those simulations. Firstly, the implementation of variance reduction techniques (VRTs), more specifically the incorporation of geometrical importance sampling, is discussed. After this, the newly designed cluster version of the GATE software is described. The experiments have shown that GATE simulations scale very well on a cluster of homogeneous computers. Finally, an elaboration on the deployment of GATE on the Enabling Grids for E-Science in Europe (EGEE) grid will conclude the description of efficiency enhancement efforts. The three aforementioned methods improve the efficiency of GATE to a large extent and make realistic patient-specific overnight Monte Carlo simulations achievable.
E-info
https://repository.uantwerpen.be/docman/iruaauth/2cfc17/c1b1b23b556.pdf