The Analytical Laboratory for the JET Active Gas Handling System &mdash; Inactive Commissioning

R L&auml;sser; B Grieveson; J L Hemmerich; R Stagg; K Walker

doi:dx.doi.org/10.13182/FST95-A30542

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Home / Publications / Journals / Fusion Science and Technology / Volume 28 / Number 3P2

The Analytical Laboratory for the JET Active Gas Handling System — Inactive Commissioning

R Lässer, B Grieveson, J L Hemmerich, R Stagg, K Walker

Fusion Science and Technology / Volume 28 / Number 3P2 / October 1995 / Pages 1033-1038

Analysis and Accountancy / Proceedings of the Fifth Topical Meeting on Tritium Technology In Fission, Fusion, and Isotopic Applications Belgirate, Italy May 28-June 3, 1995 / dx.doi.org/10.13182/FST95-A30542

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The Analytical Laboratory (AN) of the JET Active Gas Handling System (AGHS) is a central facility of the AGHS connected via small bore tubes to the other AGHS sub-systems. It offers various techniques such as gas chromatography, mass spectrometry, ionisation chambers, katharometers and calorimetry, to characterise the various gas samples. The detection ranges of the gas chromatograph for the six hydrogen molecules, helium, nitrogen and oxygen are from about 100ppm to 100% and for methane, higher hydrocarbons, CO and CO₂ from about 10ppm to 100% with a thermal conductivity detector and a flame ionisation detector, respectively. Similar detection ranges can be achieved with the quadrupole and omegatron mass spectrometers. In addition tritiated hydrogen and hydrocarbons will be detected with flow proportional counter detectors and ionisation chambers down to the low ppm range. Inactive commissioning results will be presented.