Abstract
The JET Active Gas Handling System (AGHS) analytical glovebox contains a custom built Gas Chromatography (GC) system and an Omegatron Mass Spectrometer. The equipment is primarily used to determine the purity of the hydrogen isotopes recovered and separated by the AGHS.Another application is to analyse the composition of the torus exhaust gas to identify and quantify all compounds including hydrocarbons generated during plasma operation. The installed GC system could only measure hydrocarbons up to propane, hence a new system was added: a Micro Gas Chromatograph, capable of analysing mixtures of hydrocarbons up to decane.Results of the analyses of hydrocarbons at the end of the carbon wall campaign with the new Micro GC are presented in this paper.
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