Title :
PEDRO: A hybrid small animal imaging system
Author :
Brown, J. M C ; Dimmock, M.R. ; Gillam, J.E. ; Jones, M. ; Lewis, R.A. ; Lynch, A. ; Panjkovic, G. ; Hall, C.
Author_Institution :
Sch. of Phys., Monash Univ., Clayton, VIC, Australia
fDate :
Oct. 24 2009-Nov. 1 2009
Abstract :
The pixelated emission detector for radioisotopes (PEDRO) is a hybrid emission imaging system designed for the measurement of single photon emission from small animals. The PEDRO is based on the combination of mechanical and electronic collimation (through the Compton effect). It utilizes a Compton-camera stack geometry situated behind an aperture array to modulate the incident radiation. The geometry is intended to maximize detection efficiency over a wide range of photon energies whilst maintaining the enhanced resolution of single photon emission imaging (SPEI). Geant4 simulations have been performed to allow validation of the model with experimental and theoretical data. This paper presents a preliminary validation of the simulation and an investigation into the effects of detector spacing for a multi-plane detector geometry.
Keywords :
Compton effect; biomedical imaging; radioisotopes; single photon emission computed tomography; Compton effect; Geant4 simulations; PEDRO; hybrid small animal imaging; pixelated emission detector for radioisotopes; single photon emission imaging; Animals; Cameras; Collimators; Composite materials; Detectors; Electromagnetic scattering; Geometry; Libraries; Particle scattering; Solid modeling;
Conference_Titel :
Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE
Conference_Location :
Orlando, FL
Print_ISBN :
978-1-4244-3961-4
Electronic_ISBN :
1095-7863
DOI :
10.1109/NSSMIC.2009.5401985
