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Development of an automatic gas handling system for microscale AMS 14C measurements by Thomas Uhl; W. Luppold; A. Rottenbach; A. Scharf; K. Kritzler; W. Kretschmer is a Engineering article available to read on EtoBox.

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A gas handling technique has been developed for metering CO 2 into the gas ion source of the Erlangen AMS facility. Further investigations and developments have resulted in a system that enables the handling of gaseous samples with carbon masses from 1 lg to 1 mg. The system has been optimized for coupling an elemental analyzer to a gas ion source. Moreover, the system can be connected to any other system that produces CO 2 , e.g. gas ampoules, gas chromatographs, etc. The principle of the gas handling system is to first store and isolate CO 2 cryogenically. Then the CO 2 is fed into the ion source by the pressure difference between the CO 2 reservoir and the gas ion source which are connected by a glass capillary. By regulation of the CO 2 pressure, the CO 2 flow into the ion source can be controlled. The outstanding advantage of this easy technique is the possibility of its complete automation. For use of the system with an elemental analyzer we created application software that controls the combustion of the sample, the cryogenic storage and the exact metering of the CO 2 into the ion source. Besides the application of using CO 2 for radiocarbon dating, our gas handling system o

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Author

Thomas Uhl; W. Luppold; A. Rottenbach; A. Scharf; K. Kritzler; W. Kretschmer

Publisher

Elsevier Science; Elsevier ; Elsevier BV (ISSN 0168-583X)

Published

2007

Language

EN

Field

Engineering (Physical Sciences)