Optical Detection of Radiocarbon Dioxide: First Results and AMS Intercomparison

• DOI: 10.1017/s0033822200057313
• Publication Date: 2017-01-20T09:36:52Z
• Authors: I Galli; S Bartalini; P Cancio; P De Natale; D Mazzotti; G Giusfredi; M E Fedi; P A Mandò
• Keywords: Accelerator mass spectrometry; Liquid Scintillation Counting

The first results of an optical method for measuring radiocarbon concentrations, based on mid-infrared laser spectroscopy a carbon dioxide gas sample, are presented with the theoretical bases explained in detail. measurements modern and highly enriched samples show extreme linearity this technique over more than 5 decades. An intercomparison accelerator mass spectrometry (AMS) is performed both 14 C-dead samples, assessing almost perfect agreement their respectively measured concentration values. main features our compared liquid scintillation counting (LSC) AMS, future developments current setup discussed.