Illumination of a Black Box: Analysis of Gas Composition During Graphite Target Preparation
- 1 January 1992
- journal article
- Published by Cambridge University Press (CUP) in Radiocarbon
- Vol. 34 (3), 321-329
- https://doi.org/10.1017/s0033822200063499
Abstract
We conducted a study of relative gas composition changes of CO2, CO and CH4during the formation of graphite targets using different temperatures, catalysts and methods. Reduction with H2increases the reaction rate without compromising the quality of the AMS target produced. Methane is produced at virtually any temperature, and the amount produced is greater at very low temperatures. The reduction of CO to graphite is very slow when H2is not included in the reaction.Keywords
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