Global Evaluation of Prompt Dose Rates in ITER Using Hybrid Monte Carlo/Deterministic Techniques

Ibrahim, A.; Sawan, M.; Mosher, Scott W; Evans, Thomas M; Peplow, Douglas E.; Wilson, P.; Wagner, John C

Title: Global Evaluation of Prompt Dose Rates in ITER Using Hybrid Monte Carlo/Deterministic Techniques

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Abstract

The hybrid Monte Carlo (MC)/deterministic techniques - Consistent Adjoint Driven Importance Sampling (CADIS) and Forward Weighted CADIS (FW-CADIS) - enable the full 3-D modeling of very large and complicated geometries. The ability of performing global MC calculations for nuclear parameters throughout the entire ITER reactor was demonstrated. The 2 m biological shield (bioshield) reduces the total prompt operational dose by six orders of magnitude. The divertor cryo-pump port results in a peaking factor of 120 in the prompt operational dose rate behind the bioshield by a factor of 47. The peak values of the prompt dose rates at the back surface of the bioshield were 240 uSv/hr and 94 uSv/hr corresponding to the regions behind the divertor cryo-pump port and the equatorial port, respectively.

Authors:

Ibrahim, A. ^[1]; Sawan, M. ^[1]; Mosher, Scott W ^[2]; Evans, Thomas M ^[2]; Peplow, Douglas E. ^[2]; Wilson, P. ^[1]; Wagner, John C ^[2]

University of Wisconsin
ORNL

Publication Date:: Sat Jan 01 00:00:00 EST 2011

Research Org.:: Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

Sponsoring Org.:: USDOE

OSTI Identifier:: 1020796

DOE Contract Number:: DE-AC05-00OR22725

Resource Type:: Journal Article

Journal Name:: Fusion Science and Technology

Additional Journal Information:: Journal Volume: 60; Journal Issue: 2

Country of Publication:: United States

Language:: English

Subject:: 70 PLASMA PHYSICS AND FUSION TECHNOLOGY; BIOLOGICAL SHIELDS; DIVERTORS; DOSE RATES; EVALUATION; SAMPLING; SIMULATION

Citation Formats


                    Ibrahim, A., Sawan, M., Mosher, Scott W, Evans, Thomas M, Peplow, Douglas E., Wilson, P., and Wagner, John C. Global Evaluation of Prompt Dose Rates in ITER Using Hybrid Monte Carlo/Deterministic Techniques.  United States: N. p., 2011. 
        Web.

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                    Ibrahim, A., Sawan, M., Mosher, Scott W, Evans, Thomas M, Peplow, Douglas E., Wilson, P., & Wagner, John C. Global Evaluation of Prompt Dose Rates in ITER Using Hybrid Monte Carlo/Deterministic Techniques.  United States.

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                    Ibrahim, A., Sawan, M., Mosher, Scott W, Evans, Thomas M, Peplow, Douglas E., Wilson, P., and Wagner, John C. 2011.  
        "Global Evaluation of Prompt Dose Rates in ITER Using Hybrid Monte Carlo/Deterministic Techniques".  United States.

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@article{osti_1020796,

  title        = {Global Evaluation of Prompt Dose Rates in ITER Using Hybrid Monte Carlo/Deterministic Techniques},

  author       = {Ibrahim, A. and Sawan, M. and Mosher, Scott W and Evans, Thomas M and Peplow, Douglas E. and Wilson, P. and Wagner, John C},

  abstractNote = {The hybrid Monte Carlo (MC)/deterministic techniques - Consistent Adjoint Driven Importance Sampling (CADIS) and Forward Weighted CADIS (FW-CADIS) - enable the full 3-D modeling of very large and complicated geometries. The ability of performing global MC calculations for nuclear parameters throughout the entire ITER reactor was demonstrated. The 2 m biological shield (bioshield) reduces the total prompt operational dose by six orders of magnitude. The divertor cryo-pump port results in a peaking factor of 120 in the prompt operational dose rate behind the bioshield by a factor of 47. The peak values of the prompt dose rates at the back surface of the bioshield were 240 uSv/hr and 94 uSv/hr corresponding to the regions behind the divertor cryo-pump port and the equatorial port, respectively.},

  doi          = {},

  url          = {https://www.osti.gov/biblio/1020796},
  journal      = {Fusion Science and Technology},
number       = 2,

  volume       = 60,

  place        = {United States},

  year         = {Sat Jan 01 00:00:00 EST 2011},

  month        = {Sat Jan 01 00:00:00 EST 2011}

}

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