Monte Carlo Simulation of Transmission Studies using a Planar Sources with a Parallel Collimator and a Line Source with a Fan-Beam Collimators

Summary, in English

A knowledge of the distribution of the attenuation coefficient is generally required for a successful correction of attenuation in nonhomogeneous regions. This can be accomplished by performing transmission measurement with either parallel or fan-bean collimation. The Monte Carlo method makes it possible to fully evaluate the results of such a correction. This study shows results from such simulations for both parallel and fan-beam transmission imaging. Also, examples of the effect of down-scatter from an emission 99mTc radionuclide into the energy window for a transmission 153Gd radionuclide are shown.

• Författare: Michael Ljungberg; Sven-Erik Strand; Nallakkandi Rajeevan; Michael A King
• Avdelning/ar: Medicinsk strålningsfysik, Lund
• Publiceringsår: 1994
• Språk: Engelska
• Sidor: 1577-1584
• Publikation/Tidskrift/Serie: IEEE Transactions on Nuclear Science
• Volym: 41
• Issue: 4
• Länkar: http://dx.doi.org/10.1109/23.322952
• Dokumenttyp: Artikel i tidskrift
• Förlag: IEEE - Institute of Electrical and Electronics Engineers Inc.
• Ämne: Radiology, Nuclear Medicine and Medical Imaging
• Aktiv: Published
• ISBN/ISSN/Övrigt: ISSN: 0018-9499