Berlin 2014 – wissenschaftliches Programm

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MO: Fachverband Molekülphysik

MO 7: Experimental Techniques 1

MO 7.5: Vortrag

Dienstag, 18. März 2014, 11:30–11:45, BEBEL SR144

Fibertest - Test for suitability of optical fiber feed-throughs and fibers in tritium atmosphere — •Kerstin Schönung and Sebastian Senst — Karlsruhe Institute of Technology (KIT), Institute of Technical Physics - Tritium Laboratory Karlsruhe (ITEP-TLK), Germany

Up to now the only possibility for tritium analytical methods, like FTIR-spectroscopy, to safely inject light into a glove box and a tritium system itself are optical windows bonded into vacuum flanges. Optical fiber feed-throughs and fibers could replace these windows and at the same time facilitate the setup.

But before fiber components can be used in a tritium system, two main questions have to be answered: Does tritium permeate through the fiber feed-through? Do optical properties change if the fiber is exposed to tritium? To answer these questions the Fibertest experiment is set up.

In this talk the setup and the measurement principle is explained. Furthermore the first results of the experiment are shown. This work is supported by the Carl-Zeiss-Foundation.