A Preliminary ion Source Background Study at Lalonde AMS
| العنوان: | A Preliminary ion Source Background Study at Lalonde AMS |
|---|---|
| المؤلفون: | R J Cornett, Sarah Murseli, Carley Crann, William E. Kieser, M Wilk, X.-L. Zhao, Gilles St-Jean, Ian D. Clark |
| المصدر: | Radiocarbon. 61:1091-1106 |
| بيانات النشر: | Cambridge University Press (CUP), 2019. |
| سنة النشر: | 2019 |
| مصطلحات موضوعية: | 010302 applied physics, 010506 paleontology, Archeology, Isotope, Radiochemistry, 01 natural sciences, Ion source, Ion, Sputtering, 0103 physical sciences, General Earth and Planetary Sciences, Environmental science, 0105 earth and related environmental sciences, Accelerator mass spectrometry |
| الوصف: | Observation of the ion source generated background has been an area of focus during our routine analytical work. It is noted that the results of very-low-ratio samples are dependent upon the particular procedures for measurement using the present-day Cs+ sputter ion sources. When measured without excessive Cs+ fluxes and without interleafing with other higher-ratio samples and references, the accelerator mass spectrometry (AMS) sensitivity can be somewhat improved. In some cases, it appears possible to assess old radiocarbon (14C) samples to beyond the long-standing 60 kyr limit. A number of observational studies are made for the sole purpose of minimizing the final contamination to the rare isotopes that is generated within the ion source. |
| تدمد: | 1945-5755 0033-8222 |
| DOI: | 10.1017/rdc.2019.58 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_________::ec5e7ce6809c02fd36cd830ad442f206 https://doi.org/10.1017/rdc.2019.58 |
| Rights: | OPEN |
| رقم الانضمام: | edsair.doi...........ec5e7ce6809c02fd36cd830ad442f206 |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 19455755 00338222 |
|---|---|
| DOI: | 10.1017/rdc.2019.58 |