Final published version
Research output: Contribution to Journal/Magazine › Journal article › peer-review
Research output: Contribution to Journal/Magazine › Journal article › peer-review
}
TY - JOUR
T1 - Neutronics analysis for integration of ITER diagnostics port EP10
AU - Colling, Bethany
AU - Eade, Tim
AU - Joyce, Malcolm John
AU - Pampin, Raul
AU - Seyvet, Fabien
AU - Turner, Andrew
AU - Udintsev, Victor
PY - 2016/11/1
Y1 - 2016/11/1
N2 - Shutdown dose rate calculations have been performed on an integrated ITER C-lite neutronics model with equatorial port 10. A ‘fully shielded’ configuration, optimised for a given set of diagnostic designs (i.e. shielding in all available space within the port plug drawers), results in a shutdown dose rate in the port interspace, from the activation of materials comprising equatorial port 10, in excess of 2000 μSv/h. Achieving dose rates of 100 μSv/h or less, as required in areas where hands-on maintenance can be performed, in the port interspace region will be challenging. A combination of methods will need to be implemented, such as reducing mass and/or the use of reduced activation steel in the port interspace, optimisation of the diagnostic designs and shielding of the port interspace floor. Further analysis is required to test these options and the ongoing design optimisation of the EP10 diagnostic systems.
AB - Shutdown dose rate calculations have been performed on an integrated ITER C-lite neutronics model with equatorial port 10. A ‘fully shielded’ configuration, optimised for a given set of diagnostic designs (i.e. shielding in all available space within the port plug drawers), results in a shutdown dose rate in the port interspace, from the activation of materials comprising equatorial port 10, in excess of 2000 μSv/h. Achieving dose rates of 100 μSv/h or less, as required in areas where hands-on maintenance can be performed, in the port interspace region will be challenging. A combination of methods will need to be implemented, such as reducing mass and/or the use of reduced activation steel in the port interspace, optimisation of the diagnostic designs and shielding of the port interspace floor. Further analysis is required to test these options and the ongoing design optimisation of the EP10 diagnostic systems.
KW - ITER
KW - Neurotronics
KW - Diagnostic port
KW - Shutdown dose rate
KW - MCNP
U2 - 10.1016/j.fusengdes.2016.01.013
DO - 10.1016/j.fusengdes.2016.01.013
M3 - Journal article
VL - 109-111
SP - 1109
EP - 1113
JO - Fusion Engineering and Design
JF - Fusion Engineering and Design
SN - 0920-3796
IS - B
ER -