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

Autor: Arenz, M., Baek, W.J., Beck, M., Beglarian, A., Behrens, J., Bergmann, T., Berlev, A., Besserer, U., Blaum, K., Bode, T., Bornschein, B., Bornschein, L., Brunst, T., Buzinsky, N., Chilingaryan, S., Choi, W., Deffert, M., Doe, P., Dragoun, O., Drexlin, G., Dyba, S., Edzards, F., Eitel, K., Ellinger, E., Engel, R., Enomoto, S., Erhard, M., Eversheim, D., Fedkevych, M., Fischer, S., Formaggio, J., Fränkle, F., Franklin, G., Friedel, F., Fulst, A., Gil, W., Glück, F., Ureña, A., Grohmann, S., Grössle, R., Gumbsheimer, R., Hackenjos, M., Hannen, V., Harms, F., Haußmann, N., Heizmann, F., Helbing, K., Herz, W., Hickford, S., Hilk, D., Hillesheimer, D., Howe, M., Huber, A., Jansen, A., Kellerer, J., Kernert, N., Kippenbrock, L., Kleesiek, M., Klein, M., Kopmann, A., Korzeczek, M., Kovalík, A., Krasch, B., Kraus, M., Kuckert, L., Lasserre, T., Lebeda, O., Letnev, J., Lokhov, A., Machatschek, M., Marsteller, A., Martin, E., Mertens, S., Mirz, S., Monreal, B., Neumann, H., Niemes, S., Off, A., Osipowicz, A., Otten, E., Parno, D., Pollithy, A., Poon, A., Priester, F., Ranitzsch, P., Rest, O., Robertson, R., Roccati, F., Rodenbeck, C., Röllig, M., Röttele, C., Ryšavý, M., Sack, R., Saenz, A., Schimpf, L., Schlösser, K., Schlösser, M., Schönung, K., Schrank, M., Seitz-Moskaliuk, H., Sentkerestiová, J., Sibille, V., Slezák, M., Steidl, M., Steinbrink, N., Sturm, M., Suchopar, M., Suesser, M., Telle, H., Thorne, L., Thümmler, T., Titov, N., Tkachev, I., Trost, N., Valerius, K., Vénos, D., Vianden, R., Hernández, A., Weber, M., Weinheimer, C., Weiss, C., Welte, S., Wendel, J., Wilkerson, J., Wolf, J., Wüstling, S., Zadoroghny, S.
Jazyk: angličtina
Rok vydání: 2018
Předmět:
Zdroj: European Physical Journal C: Particles and Fields, Vol 78, Iss 5, Pp 1-7 (2018)
European Physical Journal
ISSN: 1434-6052
1434-6044
DOI: 10.1140/epjc/s10052-018-5832-y
Popis: 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-precise high-voltage dividers were developed and built in cooperation with the German national metrology institute Physikalisch-Technische Bundesanstalt (PTB). Until now, regular absolute calibration of the voltage dividers required bringing the equipment to the specialised metrology laboratory. Here we present a new method based on measuring the energy difference of two $$^{83{\mathrm{m}}}$$ 83m Kr conversion electron lines with the KATRIN setup, which was demonstrated during KATRIN’s commissioning measurements in July 2017. The measured scale factor $$M=1972.449(10)$$ M=1972.449(10) of the high-voltage divider K35 is in agreement with the last PTB calibration 4 years ago. This result demonstrates the utility of the calibration method, as well as the long-term stability of the voltage divider.
Databáze: OpenAIRE
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