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

Summary, in English

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.

• Författare: Michael Ljungberg; A Larsson; L Johansson
• Avdelning/ar: Medicinsk strålningsfysik, Lund
• Publiceringsår: 2005
• Språk: Engelska
• Sidor: 1370-1375
• Publikation/Tidskrift/Serie: IEEE Transactions on Nuclear Science
• Volym: 52
• Issue: 5
• Länkar: http://dx.doi.org/10.1109/TNS.2005.858252
• Dokumenttyp: Artikel i tidskrift
• Förlag: IEEE - Institute of Electrical and Electronics Engineers Inc.
• Ämne: Radiology, Nuclear Medicine and Medical Imaging
• Nyckelord: SPECT; simulation; scattering; collimator; Monte Carlo
• Status: Published
• ISBN/ISSN/Övrigt: ISSN: 0018-9499