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Background Reduction Methods and Vacuum Technology at the KATRIN Spectrometers

Görhardt, Stefan

Abstract:
The goal of KATRIN is to measure the absolute mass of the electron-antineutrino with a sensitivity of 200 meV by analyzing the shape of the tritium-beta-decay energy spectrum. To minimize the background due to residual gas ionization, a pressure in the lower 10E-11 mbar region is required. This work focuses on the applied vacuum technology. In addition a system of LN2 cooled baffles was designed that eliminates radon-induced background, which is essential for a neutrino mass measurement.

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Volltext §
DOI: 10.5445/IR/1000038050
Seitenaufrufe: 31
seit 12.05.2018
Downloads: 267
seit 03.02.2014
Zugehörige Institution(en) am KIT Institut für Kernphysik (IKP)
Publikationstyp Hochschulschrift
Jahr 2014
Sprache Englisch
Identifikator urn:nbn:de:swb:90-380506
KITopen-ID: 1000038050
HGF-Programm 51.02.01 (POF II, LK 01)
Verlag KIT, Karlsruhe
Abschlussart Dissertation
Fakultät Fakultät für Physik (PHYSIK)
Institut Institut für Kernphysik (IKP)
Prüfungsdaten 24.01.2014
Referent/Betreuer Prof. G. Drexlin
Schlagworte KATRIN, vacuum, bake-out, NEG, LN2 cooled baffle
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