A new collimator simulation in SIMIND based on the delta-scattering technique

Michael Ljungberg, A Larsson, L Johansson

Research output: Contribution to journalArticlepeer-review

Abstract

To use conventional ray tracing methods in Monte Carlo simulation of the collimator in a scintillation camera system can be time consuming. It is however necessary to take collimator interactions into account when simulating radionuclides emitting high-energy photons that can penetrate the septa in the collimator. In this work a statistical collimator algorithm, based on the Delta-Scattering method, is evaluated using I-123. The evaluation is performed by comparing results from Monte Carlo simulations and measurements for a scintillation camera system, using point sources and a nonhomogeneous brain phantom. A good agreement can be seen for both images and energy spectra.
Original languageEnglish
Pages (from-to)1370-1375
JournalIEEE Transactions on Nuclear Science
Volume52
Issue number5
DOIs
Publication statusPublished - 2005

Subject classification (UKÄ)

  • Radiology, Nuclear Medicine and Medical Imaging

Free keywords

  • SPECT
  • simulation
  • scattering
  • collimator
  • Monte Carlo

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