Prof Christopher Ramsey: Publications

Radiocarbon with Gas Chromatography

Radiocarbon Cambridge University Press (CUP) 37:2 (1995) 711-716

Authors:

Christopher Bronk Ramsey, REM Hedges

Abstract:

In 14C tracer studies, and when looking for modern contamination in archaeological samples, it is often necessary to measure the 14C concentration of individual chemical fractions. Gas chromatography (GC) is one method that is frequently used for separation of chemical fractions. The gas ion source at the 91̽�� Radiocarbon Accelerator Unit for accelerator mass spectrometry (AMS) provides the opportunity to measure fractions from a GC instrument directly. Although the first investigations are likely to be 14C tracer studies, such a GC-AMS system could find much wider application. We present results from a pilot study of the peak sensitivity, baseline stability and crosstalk of the accelerator system used in this way. We also discuss the practical considerations in developing a GC-AMS instrument for routine use.

Carbon dioxide sputter source development at 91̽��

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms Elsevier BV 92:1-4 (1994) 100-104

Authors:

C Bronk Ramsey, REM Hedges

Design considerations for a future injection system for radocarbon AMS measurements

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms Elsevier BV 92:1-4 (1994) 217-220

Authors:

REM Hedges, C Bronk Ramsey

Gas handling systems for radiocarbon dating by AMS

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms Elsevier BV 92:1-4 (1994) 105-110

Authors:

C Bronk Ramsey, REM Hedges

Imaging AMS

Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms Elsevier BV 92:1-4 (1994) 231-236

Authors:

SPHT Freeman, C Bronk Ramsey, REM Hedges

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