160 keV 26Al-AMS with a single-stage accelerator mass spectrometer

NUCLEAR INSTRUMENTS & METHODS IN PHYSICS RESEARCH SECTION B-BEAM INTERACTIONS WITH MATERIALS AND ATOMS

卷:361

Article; Proceedings Paper

Shanks, Richard P.¹  Freeman, Stewart P. H. T.¹ 

[1] Scottish Univ Environm Res Ctr SUERC, E Kilbride G75 0QF, Lanark, Scotland

关键词: Al-26;    AMS;    SSAMS;    Low energy;    Aluminium;   

DOI  :  10.1016/j.nimb.2015.07.121

来源: Elsevier

【 摘 要 】

Proof-of-principle Al-26-AMS analysis is achieved with a single-stage accelerator mass spectrometer (SSAMS) utilising very low ion energy. The SSAMS operates by discriminating against atomic isobar interference in a negative ion source and suppressing molecules with thick gas stripper. Resulting 1+ ions counting is with a surface barrier detector. The NEC designed SSAMS for C-14 analysis is a popular model accelerator mass spectrometer and the developed further capability might be a significant addition to established Al-26-AMS capacity. Measurements at these energies should also be sufficient for alternative Al-26 positive-ion mass spectrometry (PIMS). (C) 2015 The Authors. Published by Elsevier B.V.

【 授权许可】

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