학술논문
Calibration of high voltages at the ppm level by the difference of $$^{83{\mathrm{m}}}$$ 83m Kr conversion electron lines at the KATRIN experiment
Document Type
article
Author
M. Arenz; W.-J. Baek; M. Beck; A. Beglarian; J. Behrens; T. Bergmann; A. Berlev; U. Besserer; K. Blaum; T. Bode; B. Bornschein; L. Bornschein; T. Brunst; N. Buzinsky; S. Chilingaryan; W. Q. Choi; M. Deffert; P. J. Doe; O. Dragoun; G. Drexlin; S. Dyba; F. Edzards; K. Eitel; E. Ellinger; R. Engel; S. Enomoto; M. Erhard; D. Eversheim; M. Fedkevych; S. Fischer; J. A. Formaggio; F. M. Fränkle; G. B. Franklin; F. Friedel; A. Fulst; W. Gil; F. Glück; A. Gonzalez Ureña; S. Grohmann; R. Grössle; R. Gumbsheimer; M. Hackenjos; V. Hannen; F. Harms; N. Haußmann; F. Heizmann; K. Helbing; W. Herz; S. Hickford; D. Hilk; D. Hillesheimer; M. A. Howe; A. Huber; A. Jansen; J. Kellerer; N. Kernert; L. Kippenbrock; M. Kleesiek; M. Klein; A. Kopmann; M. Korzeczek; A. Kovalík; B. Krasch; M. Kraus; L. Kuckert; T. Lasserre; O. Lebeda; J. Letnev; A. Lokhov; M. Machatschek; A. Marsteller; E. L. Martin; S. Mertens; S. Mirz; B. Monreal; H. Neumann; S. Niemes; A. Off; A. Osipowicz; E. Otten; D. S. Parno; A. Pollithy; A. W. P. Poon; F. Priester; P. C.-O. Ranitzsch; O. Rest; R. G. H. Robertson; F. Roccati; C. Rodenbeck; M. Röllig; C. Röttele; M. Ryšavý; R. Sack; A. Saenz; L. Schimpf; K. Schlösser; M. Schlösser; K. Schönung; M. Schrank; H. Seitz-Moskaliuk; J. Sentkerestiová; V. Sibille; M. Slezák; M. Steidl; N. Steinbrink; M. Sturm; M. Suchopar; M. Suesser; H. H. Telle; L. A. Thorne; T. Thümmler; N. Titov; I. Tkachev; N. Trost; K. Valerius; D. Vénos; R. Vianden; A. P. Vizcaya Hernández; M. Weber; C. Weinheimer; C. Weiss; S. Welte; J. Wendel; J. F. Wilkerson; J. Wolf; S. Wüstling; S. Zadoroghny
Source
European Physical Journal C: Particles and Fields, Vol 78, Iss 5, Pp 1-7 (2018)
Subject
Language
English
ISSN
1434-6044
1434-6052
1434-6052
Abstract
Abstract 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.