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The ITER outer vessel steady state (OVSS) magnetic diagnostic employing bismuth Hall sensors is presently being manufactured. New results on understanding and analytical description of a rather complex dependence of bismuth Hall coefficient on magnetic field and temperature are presented. Both, dependence of bismuth Hall coefficient on temperature and magnetic field is captured by a single analytical function while the error of the fit is comparable to the maximum allowed error of the ITER OVSS diagnostic. Results of FISPACT simulation of indium transmutation under ITER OVSS like neutron fluence are presented. Indium is used within OVSS sensors to provide periodic in-situ recalibration of embedded thermocouples. It is demonstrated that additional impurities introduced by indium transmutation does not compromise precision of the ITER OVSS diagnostic. Finally, outlook for Hall sensing materials (InAs, Bi, BiCu, Sb, Au-nanofilms, and graphene) potentially applicable for DEMO steady state sensors is given reviewing their properties in relation to the harsh environmental constraints posed to their implementation on DEMO reactor. [ABSTRACT FROM AUTHOR]

[Display omitted] • The adsorption of yttrium cations by Na-TiO 2 was investigated. • The maximal adsorption value of yttrium is 259 mg/g. • The equilibrium adsorption of Y3+ is described by Freundlich's theory with high reliability. • The adsorbent is resistant to the influence of β− - irradiation. The adsorption of yttrium cations from an aqueous solution of YCl 3 by sodium-modified titanium dioxide (Na-TiO 2) was investigated. The Na-TiO 2 was obtained by impregnating Na+ cations into the surface layer of TiO 2 nanoparticles. The synthesis of nanoparticle TiO 2 was performed by a liquid-phase sol–gel method, using the aqua complex of [Ti(OH 2) 6 ]3+‧3Cl− as a precursor. Nanoheterostructured Na-TiO 2 is an anatase modification of TiO 2. The amount of incorporated sodium cations on the TiO 2 surface is about 6%. The surface area of Na-TiO 2 is 239 m2‧g−1; the volume of mesopores is 0.098 cm3‧g−1; that of micropores is 0.054 cm3‧g−1. Yttrium ion adsorption was investigated under batch conditions. Complexometric titration and mas-spectrometric analysis determined the initial and equilibrium concentration of yttrium. The radiation resistance of Na-TiO 2 to the influence of beta irradiation was investigated as well. For this purpose, the radiation of β− -particles of the 90Sr-90Y source "Sirius" was used. The flux of β− – particles was 2.1 ‧ 108 electrons/sm2‧s; the maximal energy of incident electrons was 2.28 MeV. It was shown that the investigated adsorbent has a high adsorption capacity toward yttrium cations. The maximum adsorption is about 259 mg/g. The adsorption kinetic is fit well with the kinetic model based on the pseudo-second-order equation. The equilibrium adsorption of yttrium cations is described by Freundlich's theory with high reliability. The adsorbent is resistant to the influence of β− – irradiation. This is manifested in the invariance of its adsorption capacity toward yttrium cations after irradiation. Na-TiO 2 is a promising material for the adsorption of yttrium and Rare Earth elements and can be used as the basis for the 90Y isotopic generator. [ABSTRACT FROM AUTHOR]