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CitationBronk, C. R., & Hedges, R. E. M. (1989). Use of the CO2 source in radiocarbon dating by AMS. Radiocarbon, 31(3), 298-304.
DescriptionFrom the 13th International Radiocarbon Conference held in Dubrovnik, Yugoslavia, June 20-25, 1988.
AbstractSince Middleton showed the potential for a sputter source working from CO2, we have been building a source which can automatically change samples. The source produces a maximum beam of 25 micro-A of C-, with typical operation between 10 and 20 micro-A. Although beam generation from the source is very reliable, the mechanics of sample changing have given considerable problems. The changing of samples also involves considerable care in gas handling, and a computer control system has been written which ensures the correct sequence of the 16 operations required for sample change.