Fission-reactor-radiation-tests of MI-cables and magnetic coils for fusion burning plasma diagnostics

Performance of functional materials and components in a fusion reactor: the issue of radiation effects in ceramics and glass materials for diagnostics

“…Systematic studies [16] were confirmed by recent inreactor tests using different materials for the core wires: stainless steel [14], copper [17] or nickel [18]. But the obtained results present often a complex pattern.…”

TIEMF effect in ceramic coated cables

“…At an early stage RIEMF (radiation induced electromotive force) in MI (mineral insulated) cables was recognized as a potential problem for ITER diagnostics [1][2][3][4][5][6][7][8]. Known for many years, RIEMF between the central conductor and outer sheath can generate potentials of the order of volts and microamps of current, producing additional noise in the cables.…”

Radiation-induced thermoelectric sensitivity in the mineral-insulated cable of magnetic diagnostic coils for ITER

“…Magnetic coils wound with mineral insulated (MI) cable are proposed as the most reliable magnetic sensors in ITER [1]. However, radiation-induced EMF (RIEMF) of order 1V was observed between the center conductor and the outer sheath under fission reactor irradiation tests [2][3][4][5]. Should more than a small fraction (10 À6 ) of this RIEMF appear across the center conductor (as the signal voltage does), significant errors will be induced into the plasma position measurements.…”