Journal Article

Measurement of the electric potential and the magnetic field in the shifted analysing plane of the KATRIN experiment

Priester, F., Schlüter, L., Salomon, R., Forstner, C., Lehnert, B., Schwenck, A., Krause, H., Poyato, J. M. L., Böttcher, M., Mark, M., Schürmann, J., Siegmann, D., Marsteller, A., Pavan, M., Rodenbeck, C., Saenz, A., Kellerer, J., Debowski, K., Röllig, M., Caldwell, T. S., Urban, K., Gumbsheimer, R., Ellinger, E., Enomoto, S., Fränkle, F. M., Lebeda, O., Wüstling, S., Karl, C., Höhn, T., Khosonthongkee, K., Melzer, C., Le, T. L., Lokhov, A., Beisenkötter, J., Carminati, M., Drexlin, G., Šefčík, M., Huber, A., Dragoun, O., Batzler, D., Bornschein, L., Fiorini, C., Hinz, D., Gavin, A. S., Suwonjandee, N., Spanier, F., Vénos, D., Grössle, R., Chatrabhuti, A., Block, F., Telle, H. H., Mohanty, S., McMichael, K., Schlösser, K., Hickford, S., Machatschek, M., Wolf, J., Glück, F., Steidl, M., Jerome, N. Tan, Chilingaryan, S., Biondi, Y., Mertens, S., Xu, W., Köhler, C., Mostafa, J., Barrero, D. Díaz, Descher, M., Felden, A., Thümmler, T., Bornschein, B., Lasserre, T., Daniel, B. A., Štorek, J., Eitel, K., Schrank, M., Parno, D. S., Pozzi, S., Welte, S., Hasselmann, L., Zeller, G., Schlösser, M., Nava, A., Zadorozhny, S., Titov, N., Helbing, K., Hillesheimer, D

2024

Overview

The projected sensitivity of the effective electron neutrino-mass measurement with the KATRIN experiment is below 0.3 eV (90 % CL) after 5 years of data acquisition. The sensitivity is affected by the increased rate of the background electrons from KATRIN’s main spectrometer. A special shifted-analysing-plane (SAP) configuration was developed to reduce this background by a factor of two. The complex layout of electromagnetic fields in the SAP configuration requires a robust method of estimating these fields. We present in this paper a dedicated calibration measurement of the fields using conversion electrons of gaseous 83m Kr, which enables the neutrino-mass measurements in the SAP configuration.

• Publisher: Springer Berlin Heidelberg,Springer,Springer Nature B.V,Springer Verlag (Germany),Springer Nature,SpringerOpen
• Subject: Astronomy / Astrophysics / Astrophysics and Cosmology / Collaboration / Configurations / Data acquisition / Electromagnetic fields / Electromagnetism / Electrons / Elementary Particles / Experiments / Hadrons / Heavy Ions / Instrumentation and Detectors / Magnetic fields / Measurement / Measurement Science and Instrumentation / Neutrinos / Nuclear Energy / Nuclear Physics / Physics / Physics and Astronomy / PHYSICS OF ELEMENTARY PARTICLES AND FIELDS / Quantum Field Theories / Quantum Field Theory / Regular / Regular Article / Science / Sensitivity analysis / String Theory