Electron/Photon Verification Calculations Using MCNP4B | Zendy

David P. Gierga | Zendy; K.J. Adams | Zendy

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Electron/Photon Verification Calculations Using MCNP4B

Author(s) -

David P. Gierga,

K.J. Adams

Publication year - 1999

Publication title -

osti oai (u.s. department of energy office of scientific and technical information)

Language(s) - English

Resource type - Reports

DOI - 10.2172/9448

Subject(s) - bremsstrahlung , photon , physics , electron , range (aeronautics) , computational physics , nuclear physics , detector , reflection (computer programming) , variance reduction , production (economics) , atomic physics , variance (accounting) , optics , computer science , materials science , programming language , accounting , macroeconomics , economics , business , composite material

MCNP4BW was released in February 1997 with significant enhancements to electron/photon transport methods. These enhancements have been verified against a wide range of published electron/photon experiments, spanning high energy bremsstrahlung production to electron transmission and reflection. The impact of several MCNP tally options and physics parameters was explored in detail. The agreement between experiment and simulation was usually within two standard deviations of the experimental and calculational errors. Furthermore, sub-step artifacts for bremsstrahlung production were shown to be mitigated. A detailed suite of electron depth dose calculations in water is also presented. Areas for future code development have also been explored and include the dependence of cell and detector tallies on different bremsstrahlung angular models and alternative variance reduction splitting schemes for bremsstrahlung production

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