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

  • Michael Ljungberg
  • Sven-Erik Strand
  • Nallakkandi Rajeevan
  • Michael A King
Publishing year: 1994
Language: English
Pages: 1577-1584
Publication/Series: IEEE Transactions on Nuclear Science
Volume: 41
Issue: 4
Document type: Journal article
Publisher: IEEE--Institute of Electrical and Electronics Engineers Inc.

Abstract 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.


  • Radiology, Nuclear Medicine and Medical Imaging


  • ISSN: 0018-9499
Sven-Erik Strand
E-mail: sven-erik [dot] strand [at] med [dot] lu [dot] se

Project manager

Systemic Radiation Therapy Group


Professor emeritus

Medical Radiation Physics, Lund