Development of an AMS method to study oceanic circulation characteristics using cosmogenic Ar-39

Publication Status is "Submitted" Or "In Press: 
LDEO Publication: 
Publication Type: 
Year of Publication: 
2004
Editor: 
Journal Title: 
Nuclear Instruments & Methods in Physics Research Section B-Beam Interactions with Materials and Atoms
Journal Date: 
Aug
Place Published: 
Tertiary Title: 
Volume: 
223-24
Issue: 
Pages: 
428-434
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Publisher: 
ISBN Number: 
0168-583X
ISSN Number: 
Edition: 
Short Title: 
Accession Number: 
ISI:000223752300079
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Abstract: 

Initial experiments at the ATLAS facility [Nucl. Instr. and Meth. B 92 (1994) 241] resulted in a clear detection of cosmogenic Ar-39 signal at the natural level. The present paper summarizes the recent developments of Ar-39 AMS measurements at ATLAS: the use of an electron cyclotron resonance (ECR) positive ion source equipped with a special quartz liner to reduce K-39 background, the development of a gas handling system for small volume argon samples, the acceleration of Ar-39(8+) ions to 232 MeV, and the final separation of Ar-39 from K-39 in a gas-filled spectrograph. The first successful AXIS measurements of Ar-39 in ocean water samples from the Southern Atlantic ventilation experiment (SAVE) are reported. Published by Elsevier B.V.

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852JTTimes Cited:7Cited References Count:8

DOI: 
DOI 10.1016/j.nimb.2004.04.081