Neutronics analysis for integration of ITER diagnostics port EP10

Colling, Bethany and Eade, Tim and Joyce, Malcolm John and Pampin, Raul and Seyvet, Fabien and Turner, Andrew and Udintsev, Victor (2016) Neutronics analysis for integration of ITER diagnostics port EP10. Fusion Engineering and Design. ISSN 0920-3796

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Abstract

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.

Item Type:
Journal Article
Journal or Publication Title:
Fusion Engineering and Design
Uncontrolled Keywords:
/dk/atira/pure/subjectarea/asjc/2100/2104
Subjects:
ID Code:
78632
Deposited By:
Deposited On:
05 Aug 2016 15:00
Refereed?:
Yes
Published?:
Published
Last Modified:
18 Mar 2020 05:16