Performance of Custom-Made Very High Temperature Thermocouples in the Advanced Gas Reactor Experiment AGR-5/6/7 during Irradiation in the Advanced Test ReactorA. J. Palmer, R. S. Skifton, M. Scervini, D. C. Haggard and W. D. SwankEPJ Web Conf., 225 (2020) 04010DOI: https://doi.org/10.1051/epjconf/202022504010