The KATRIN superconducting magnets: Overview and first performance results

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. Q.; Deffert, M.; Doe, P. J.; Dragoun, O.; Drexlin, G.; Dyba, S.; Edzards, F.; Eitel, K.; Ellinger, E.; Engel, R.; Enomoto, S.; Erhard, M.; Eversheim, D.; Fedkevych, M.; Formaggio, J. A.; Fränkle, F. M.; Franklin, G. B.; Friedel, F.; Fulst, A.; Gil, W.; Glück, F.; Ureña, A. Gonzalez; Grohmann, S.; Grössle, R.; Gumbsheimer, R.; Hackenjos, M.; Hannen, V.; Harms, F.; Haußmann, N.; Heizmann, F.; Helbing, K.; Herz, W.; Hickford, S.; Hilk, D.; Howe, M. A.; 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. L.; Mertens, S.; Mirz, S.; Monreal, B.; Neumann, H.; Niemes, S.; Off, A.; Osipowicz, A.; Otten, E.; Parno, D. S.; Pollithy, A.; Poon, A. W. P.; Priester, F.; Ranitzsch, P. C. -O.; Rest, O.; Robertson, R. G. H.; 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.; Telle, H. H.; Thorne, L. A.; Thümmler, T.; Titov, N.; Tkachev, I.; Trost, N.; Valerius, K.; Vénos, D.; Vianden, R.; Hernández, A. P.  Vizcaya; Weber, M.; Weinheimer, C.; Weiss, C.; Welte, S.; Wendel, J.; Wilkerson, J. F.; Wolf, J.; Wüstling, S.; Zadoroghny, S.

doi:10.1088/1748-0221/13/08/T08005

Title: The KATRIN superconducting magnets: Overview and first performance results

Journal Article · Mon Aug 13 00:00:00 EDT 2018 · Journal of Instrumentation

DOI:https://doi.org/10.1088/1748-0221/13/08/T08005· OSTI ID:1482540

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. Q.; Deffert, M.; Doe, P. J.; Dragoun, O.; Drexlin, G. more »

The KATRIN experiment aims for the determination of the effective electron anti-neutrino mass from the tritium beta-decay with an unprecedented sub-eV sensitivity. The strong magnetic fields, designed for up to 6~T, adiabatically guide β-electrons from the source to the detector within a magnetic flux of 191~Tcm2. A chain of ten single solenoid magnets and two larger superconducting magnet systems have been designed, constructed, and installed in the 70-m-long KATRIN beam line. The beam diameter for the magnetic flux varies from 0.064~m to 9~m, depending on the magnetic flux density along the beam line. Two transport and tritium pumping sections are assembled with chicane beam tubes to avoid direct "line-of-sight" molecular beaming effect of gaseous tritium molecules into the next beam sections. The sophisticated beam alignment has been successfully cross-checked by electron sources. In addition, magnet safety systems were developed to protect the complex magnet systems against coil quenches or other system failures. The main functionality of the magnet safety systems has been successfully tested with the two large magnet systems. The complete chain of the magnets was operated for several weeks at 70% of the design fields for the first test measurements with radioactive krypton gas. The stability of the magnetic fields of the source magnets has been shown to be better than 0.01% per month at 70% of the design fields. This paper gives an overview of the KATRIN superconducting magnets and reports on the first performance results of the magnets.

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Research Organization:: Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States); University of North Carolina, Chapel Hill, NC (United States)

Sponsoring Organization:: USDOE Office of Science (SC), Nuclear Physics (NP)

Contributing Organization:: The KATRIN collaboration

Grant/Contract Number:: AC02-05CH11231; FG02-97ER41020; FG02-94ER40818; SC0004036; FG02-97ER41033; FG02-97ER41041; SC0011091

OSTI ID:: 1482540

Alternate ID(s):: OSTI ID: 1658834; OSTI ID: 1658955

Journal Information:: Journal of Instrumentation, Vol. 13, Issue 08; ISSN 1748-0221

Publisher:: Institute of Physics (IOP)Copyright Statement

Country of Publication:: United States

Language:: English

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Cited by: 14 works

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From First Tritium Operation of the Karlsruhe Tritium Neutrino Experiment Toward Precise Determination of the Neutrino Mass Schlösser, Magnus; Collaboration, Katrin Fusion Science and Technology, Vol. 76, Issue 3 https://doi.org/10.1080/15361055.2019.1668253	journal	December 2019
$$\upbeta $$ β -Decay spectrum, response function and statistical model for neutrino mass measurements with the KATRIN experiment Kleesiek, M.; Behrens, J.; Drexlin, G. The European Physical Journal C, Vol. 79, Issue 3 https://doi.org/10.1140/epjc/s10052-019-6686-7	journal	March 2019
Improved Upper Limit on the Neutrino Mass from a Direct Kinematic Method by KATRIN Aker, M.; Altenmüller, K.; Arenz, M. American Physical Society (APS) https://doi.org/10.5445/ir/1000100414	text	January 2019
β-Decay spectrum, response function and statistical model for neutrino mass measurements with the KATRIN experiment Kleesiek, M.; Behrens, J.; Drexlin, G. Karlsruhe https://doi.org/10.5445/ir/1000092672	text	January 2019
An improved upper limit on the neutrino mass from a direct kinematic method by KATRIN Aker, M.; Altenmüller, K.; Arenz, M. arXiv https://doi.org/10.48550/arxiv.1909.06048	text	January 2019

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Title: The KATRIN superconducting magnets: Overview and first performance results

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