Calibration of high voltages at the ppm level by the difference of ${}^{83\mathrm{m}}$Kr conversion electron lines at the KATRIN experiment

M. Arenz, W. -J. Baek, M. Beck +124

The neutrino mass experiment KATRIN requires a stability of 3 ppm for the retarding potential at -18.6 kV of the main spectrometer. To monitor the stability, two custom-made ultra-…