Commissioning of the vacuum system of the KATRIN Main Spectrometer

6533b7d9fe1ef96bd126c3d7

RESEARCH PRODUCT

Commissioning of the vacuum system of the KATRIN Main Spectrometer

Marcus Beck M. Suesser D. Eversheim E. Malcherek A. Kosmider D. Hilk M. Hötzel A. Kovalík W. Seiler Kathrin Valerius S. Fischer R. G. H. Robertson M. Hackenjos C. Weiss S. Rupp F. Heizmann S. Rosendahl Sebastian Mirz M. Prall A. W. P. Poon Thomas Thümmler R. Grössle B. Krasch A. Osipowicz M. Fedkevych K. Helbing Beate Bornschein Sascha Wüstling Guido Drexlin A. Off John E. Barrett J. Schwarz Holger Neumann N. Wandkowsky A. González Ureña A. Unru N. Titov T. Bergmann J. F. Wilkerson W. Herz Igor Tkachev J. Bonn J. Bonn K. Wierman M. Erhard K. Müller M. Ryšavý M. Steidl A. K. Skasyrskaya Andreas Kopmann Bernhard Holzapfel N. Trost Benjamin Monreal L. Kippenbrock K. Schönung D. Winzen A. ŠPalek S. Vöcking S. Vöcking R. Gumbsheimer J. Reich S. Zadoroghny Joseph A. Formaggio Michael Sturm O. Dragoun M. Zacher M. Schrank J. Sentkerestiová S. Ebenhöch P. Plischke Sanshiro Enomoto M. Bahr N. S. Oblath L. Kuckert Ernst W. Otten K. Bokeloh S. Bauer D. Vénos J. Behrens Volker Hannen Ondřej Lebeda W. Gil A. Huber N. Kernert S. Hickford P. C.-o. Ranitzsch K. Eitel J. Letnev H. Seitz-moskaliuk N. Steinbrink E. Ellinger Helmut H. Telle Helmut H. Telle S. Dyba Lutz Bornschein S. Büsch S. Niemes H. Krause M. Neuberger T.h. Burritt A. Felden H.-w. Ortjohann Marco Röllig F. M. Fränkle F. M. Fränkle J. Blümer M. Kraus K. Schlösser D. Furse O. Rest L. La Cascio Mathias Noe M. Mark F. Harms B. Kuffner V.m. Lobashev N. Haußmann Alexey Lokhov E. L. Martin Reiner Vianden Joachim Wolf M. Slezák L. De Viveiros M. Kleesiek T.j. Corona Magnus Schlösser Magnus Schlösser Diana Parno J. Wendel Marcel Krause Laura Bodine M. Babutzka Steffen Grohmann Florian Priester Marc Weber Susanne Mertens Susanne Mertens S. Görhardt B. Hillen B. L. Wall M. Arenz P. J. Doe T. Höhn A. Jansen Ferenc Glück Ch. Weinheimer M. A. Howe M. Klein A. Beglarian Stefan Welte Suren Chilingaryan M. Zbořil U. Besserer S. Groh M. Ghilea B. Leiber

subject

010302 applied physics Physics Light nucleus Physics - Instrumentation and Detectors Spectrometer Spectrometers Physics::Instrumentation and Detectors Vacuum-based FOS: Physical sciences Instrumentation and Detectors (physics.ins-det)01 natural sciences Energy analysis Nuclear physics 0103 physical sciences Energy spectrum Gas systems and purification Neutrino detectors ddc:620 010306 general physics Instrumentation Mathematical Physics Engineering & allied operations KATRIN detectors

description

The KATRIN experiment will probe the neutrino mass by measuring the β-electron energy spectrum near the endpoint of tritium β-decay. An integral energy analysis will be performed by an electro-static spectrometer (``Main Spectrometer''), an ultra-high vacuum vessel with a length of 23.2 m, a volume of 1240 m[superscript 3], and a complex inner electrode system with about 120 000 individual parts. The strong magnetic field that guides the β-electrons is provided by super-conducting solenoids at both ends of the spectrometer. Its influence on turbo-molecular pumps and vacuum gauges had to be considered. A system consisting of 6 turbo-molecular pumps and 3 km of non-evaporable getter strips has been deployed and was tested during the commissioning of the spectrometer. In this paper the configuration, the commissioning with bake-out at 300 °C, and the performance of this system are presented in detail. The vacuum system has to maintain a pressure in the 10[superscript −11] mbar range. It is demonstrated that the performance of the system is already close to these stringent functional requirements for the KATRIN experiment, which will start at the end of 2016.

year	journal	country	edition	language
2016-03-03

https://dx.doi.org/10.48550/arxiv.1603.01014