Abstract
The MCNP Monte Carlo radiation transport code was modified for diagnostic medical physics applications. In particular, the modified code was thoroughly benchmarked for the production of polychromatic tungsten x-ray spectra in the 30-150 kV range. Validating the modified code for coupled electron-photon transport with benchmark spectra was supplemented with independent electron-only and photon-only transport benchmarks. Major revisions to the code included the proper treatment of characteristic K x-ray production and scoring, new impact ionization cross sections, and new bremsstrahlung cross sections. Minor revisions included updated photon cross sections, electron-electron bremsstrahlung production, and K x-ray yield. The modified MCNP code is benchmarked to electron backscatter factors, x-ray spectra production, and primary and scatter photon transport.
Original language | English (US) |
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Pages (from-to) | 2680-2687 |
Number of pages | 8 |
Journal | Medical physics |
Volume | 27 |
Issue number | 12 |
DOIs | |
State | Published - 2000 |
Keywords
- Benchmarking
- MCNP
- Monte Carlo
- X-ray spectra
ASJC Scopus subject areas
- Biophysics
- Radiology Nuclear Medicine and imaging