Instruments and Facilities

Our analytical facilities include four mass spectrometric systems. Two of these systems are fully automated for large throughput of high-precision tritium and helium isotope measurements. The third, semi-automated system is used as a multi-purpose noble gas machine. It is used for measurements of noble gases in groundwater and in rocks (He, Ne, Ar, Kr, and Xe). A fourth system is currently under development and is going to be used for ultra low-level noble gas measurements of speleothem samples. In addition to the mass spectrometric systems, we also have four gas chromatographic systems. These gas chromatographic system are used for measurements of deliberately-injected SF6, environmental levels of SF6 in groundwater and ocean water, and CFC's and SF6 in the atmosphere.

He-Tr Lab

Two fully automated mass-spectrometer for large throughput of high-precision tritium and He isotope measurements.

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Noble Gas Lab

A semi-automated and a fully-automated system used a multi-purpose noble gas machine for measurements of noble gases in groundwater, rocks and speleothems.

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SF6 Lab for Groundwater and Soil-air

Gas chromatographic systems used for measurements of deliberately-injected SF6, environmental levels of SF6 and CFC's in groundwater, and atmosphere.

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SF6/CFC Lab for Ocean Water

Gas chromatographic systems used for measurements of SF6 and CFC's in ocean water.

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Gas Extraction Lab

Tritium and He isotope samples are prepared for mass spectrometric measurement (He-Tr Lab) by using two vacuum extraction systems.

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Cosmogenic Nuclide Lab

Extraction and analysis of 10Be, 26Al, 36Cl, cosmogenic 3He, 53Mn, and 14C from quartz.

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