### Abstract

The distribution of photons is described by the integrodifferential Boltzmann equation. However, this equation is difficult to solve because of the scatter integral and the size of the problem when discretized. A method is presented that models all orders simultaneously using spherical harmonics to efficiently describe the directional dependence. The method also partitions the problem to take advantage of the fact that a scattering event results in an energy loss. Then, within a parallel computing paradigm, it is assumed that the source and the attenuation map of the medium are known, and an attempt is made to solve for the distribution. This distribution can then be used in any imaging system model to approximate experimental images.

Original language | English (US) |
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Title of host publication | IEEE Nuclear Science Symposium and Medical Imaging Conference |

Publisher | IEEE |

Pages | 1964-1968 |

Number of pages | 5 |

ISBN (Print) | 0780350227 |

State | Published - Jan 1 1999 |

Event | Proceedings of the 1998 IEEE Nuclear Science Symposium Conference Record - Toronto, Que, Can Duration: Nov 8 1998 → Nov 14 1998 |

### Publication series

Name | IEEE Nuclear Science Symposium and Medical Imaging Conference |
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Volume | 3 |

### Other

Other | Proceedings of the 1998 IEEE Nuclear Science Symposium Conference Record |
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City | Toronto, Que, Can |

Period | 11/8/98 → 11/14/98 |

### Fingerprint

### ASJC Scopus subject areas

- Computer Vision and Pattern Recognition
- Industrial and Manufacturing Engineering

### Cite this

*IEEE Nuclear Science Symposium and Medical Imaging Conference*(pp. 1964-1968). (IEEE Nuclear Science Symposium and Medical Imaging Conference; Vol. 3). IEEE.