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000837455 1001_ $$0P:(DE-HGF)0$$aWeinhorst, B.$$b0$$eCorresponding author
000837455 245__ $$aITER core CXRS diagnostic: Assessment of different optical designs with respect to neutronics criteria
000837455 260__ $$aNew York, NY [u.a.]$$bElsevier$$c2017
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000837455 520__ $$aThe Charge Exchange Recombination Spectroscopy (CXRS) diagnostic aims to measure emission lines of impurity isotopes in the ITER plasma in order to quantify several parameters like the composition of the plasma (density of helium, deuterium or tritium), the ion temperature or rotation velocities. The core plasma CXRS shall be installed in one of the ITER Upper Port Plugs (UPP #3). Currently, four different optical layouts are being assessed with respect to the optical performance, engineering feasibility, cost, maintenance especially with respect to remote handling and the performance of their neutron radiation shielding.This work is devoted to the neutronic analysis performed in support for the design of ITER CXRS-core Diagnostic System, presently under development by the IC3 Consortium (FZJ, KIT, BME, Wigner RCP, TU/Eindhoven, FOM-DIFFER, CCFE, CIEMAT, Optimal Optik). Results of the neutronic analyses are presented showing the differences between the four different designs with respect to several nuclear responses such as neutron fluxes around the upper port plug and in the port interspace, maps of nuclear heating around the UPP including the toroidal/poloidal field coils as well as the vacuum vessel. Furthermore, radiation damage maps were calculated covering large areas of the upper port plug and of its environment. The results indicate the viability of one of the preferred designs from the neutronic point of view but also show the potential for improvements.
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000837455 7001_ $$0P:(DE-HGF)0$$aFischer, U.$$b1
000837455 7001_ $$0P:(DE-HGF)0$$aGrossetti, G.$$b2
000837455 7001_ $$0P:(DE-Juel1)4596$$aMertens, Ph.$$b3
000837455 7001_ $$0P:(DE-HGF)0$$aBardawil, D. A. Castaño$$b4
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