By Topic

A modified statistical system model and an accelerated Monte Carlo simulation for a silicon detector based Compton medical imaging system

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$33 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

2 Author(s)
Li Han ; Univ. of Michigan, Ann Arbor, MI, USA ; Clinthorne, N.H.

The objective of this research is to demonstrate a modified statistical system model and an approach of accelerated Monte Carlo simulation for studying the capability of a dual-planar Compton medical imaging system constructed with silicon and NaI detectors to image 364.4 keV energy photons emitted from I131. The Compton imaging system is a potential medical imaging instrument for effectively observing the process of radionuclide cancer treatments. Since decoupling the tradeoff between spatial resolution and detection efficiency inherent to the absorbing collimation of conventional Anger Camera, the Compton imaging system provides improved imaging performance in both detection efficiency and spatial resolution especially for higher energy photons. In the study, a modified statistical system model of the Compton system was developed considering all factors in the Compton process including Doppler broadening, energy resolution and spatial resolution of the scattering and absorbed detectors in addition to the Compton image formation process. To conquer the limitation of low simulation speed when employing the existent allpurpose Monte Carlo simulation platform due to low Compton interaction cross-section inside of the silicon detector, the developed Monte Carlo simulation involves the techniques of force detection and variance reduction to speed up the simulation. It is proved that two promotion approaches are of benefit to performance analysis and image reconstruction for the Compton imaging system.

Published in:

Nuclear Science Symposium Conference Record (NSS/MIC), 2009 IEEE

Date of Conference:

Oct. 24 2009-Nov. 1 2009