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MICADAS: A new compact radiocarbon AMS system

✍ Scribed by Hans-Arno Synal; Martin Stocker; Martin Suter

Publisher: Elsevier Science
Year: 2007
Tongue: English
Weight: 354 KB
Volume: 259
Category: Article
ISSN: 0168-583X
DOI: 10.1016/j.nimb.2007.01.138

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✦ Synopsis

A novel tabletop AMS system with overall dimensions of only 2.5 • 3 m 2 has been built and tested. The mini radiocarbon dating System (MICADAS) is based on a vacuum insulated acceleration unit that uses a commercially available 200 kV power supply to generate acceleration fields in a tandem configuration. At the high-energy end, ions in charge state 1 + are selected and interfering molecules of mass 14 amu are destroyed in multiple collisions. The new system is now fully operational. It is the prototype of a new generation of radiocarbon spectrometers which fulfill the requirements for radiocarbon dating applications as well as for the less demanding 14 C/ 12 C isotopic ratio measurements as needed, e.g. in biomedical applications. A detailed description of the system is given and results of performance tests are discussed.

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