Global evaluation of prompt dose rates in iter using hybrid Monte Carlo/Deterministic techniques

A. M. Ibrahim; M. E. Sawan; S. W. Mosher; T. M. Evans; D. E. Peplow; P. P. Wilson; J. C. Wagner

doi:10.13182/FST11-A12462

Global evaluation of prompt dose rates in iter using hybrid Monte Carlo/Deterministic techniques

A. M. Ibrahim, M. E. Sawan, S. W. Mosher, T. M. Evans, D. E. Peplow, P. P. Wilson, J. C. Wagner

Research output: Contribution to journal › Article › peer-review

8 Scopus citations

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 of ITER. The equatorial port, plugged by 2 m of shielding, increases the prompt 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 Sv/hr and 94 Sv/hr corresponding to the regions behind the divertor cryo-pump port and the equatorial port, respectively.

Original language	English
Pages (from-to)	676-680
Number of pages	5
Journal	Fusion Science and Technology
Volume	60
Issue number	2
DOIs	https://doi.org/10.13182/FST11-A12462
State	Published - Aug 2011

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title = "Global evaluation of prompt dose rates in iter using hybrid Monte Carlo/Deterministic techniques",

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 of ITER. The equatorial port, plugged by 2 m of shielding, increases the prompt 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 Sv/hr and 94 Sv/hr corresponding to the regions behind the divertor cryo-pump port and the equatorial port, respectively.",

author = "Ibrahim, {A. M.} and Sawan, {M. E.} and Mosher, {S. W.} and Evans, {T. M.} and Peplow, {D. E.} and Wilson, {P. P.} and Wagner, {J. C.}",

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AU - Ibrahim, A. M.

AU - Sawan, M. E.

AU - Mosher, S. W.

AU - Evans, T. M.

AU - Peplow, D. E.

AU - Wilson, P. P.

AU - Wagner, J. C.

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N2 - 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 of ITER. The equatorial port, plugged by 2 m of shielding, increases the prompt 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 Sv/hr and 94 Sv/hr corresponding to the regions behind the divertor cryo-pump port and the equatorial port, respectively.

AB - 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 of ITER. The equatorial port, plugged by 2 m of shielding, increases the prompt 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 Sv/hr and 94 Sv/hr corresponding to the regions behind the divertor cryo-pump port and the equatorial port, respectively.

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Global evaluation of prompt dose rates in iter using hybrid Monte Carlo/Deterministic techniques

Abstract

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