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

[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.

[发布日期] 2015-10-15

[效力级别]  Proceedings Paper

[关键词] Al-26;AMS;SSAMS;Low energy;Aluminium