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VA: Fachverband Vakuumphysik und Vakuumtechnik
VA 3: UHV systems at FAIR and KATRIN
VA 3.2: Vortrag
Montag, 25. Februar 2008, 14:40–15:00, H 0106
Outgassing measurements after 350∘C bake-out of the KATRIN sectrometer — •Joachim Wolf — Universität Karlsruhe, IEKP, Postfach 3640, 76021 Karlsruhe (KATRIN Collaboration)
The KArlsruhe TRItium Neutrino experiment (KATRIN) aims to measure the electron neutrino mass from the β-decay of tritium with an unprecedented sensitivity of 0.2 eV/c2. The kinetic energy of the decay electrons will be measured in an electrostatic spectrometer. Background considerations require a very good vacuum of 10−11 mbar or better in the large spectrometer vessel (volume 1240 m3, surface: 690 m2). A combination of NEG pumps and turbo-molecular pumps will provide the necessary pumping speed. In addition a very clean surface and low outgassing rates are mandatory. This talk reports on the commissioning and final outgassing measurements before and after bake-out at 350∘C.
In part supported by BMBF projects 05CK5VKA/5, 05CK5REA/0, 05CK5PMA/0 and 05CK5UMA/3.