Temperature Tests of Miniature Ceramic/Antimony Hall Sensors for ITER and DEMO

The magnetic diagnostics of the ITER and DEMO reactors include Hall sensors to measure the steady-state magnetic field. High temperature compatible and neutron radiation-resistant Hall sensors based on an antimony-sensitive layer are being developed for this purpose. The tests confirm the linear dependence of the output Hall voltage of the sensors on the magnetic field and the stability of the sensors’ sensitivity for temperatures up to 400
$^{\circ}$
C.