Tick-tock there is a clock in my rock – 30 years of counting atoms with accelerator mass spectrometry

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dc.contributor.authorFink, Den_AU
dc.date.accessioned2022-04-08T01:31:30Zen_AU
dc.date.available2022-04-08T01:31:30Zen_AU
dc.date.issued2016-06-08en_AU
dc.date.statistics2021-12-21en_AU
dc.description.abstractAccelerator Mass Spectrometry is recognized as one of the most significant advances in analytical isotope research of the 20th century. Since the 1980’s its impact in science and technology has been immeasurable. In all subjects related to the study of planet Earth, geologic and biologic, past and present, outcomes facilitated by the unprecedented sensitivity afforded by AMS have resulted in paradigm shifts of prevailing concepts and models. The art of in-situ produced terrestrial cosmogenic radionuclides (specifically 10Be, 14C, 26Al, and 36Cl) was borne out of AMS methodologies developed in the study of precious lunar and meteoritic samples to unravel their formation, distribution and exposure histories. As a result, measurement of miniscule concentrations of cosmogenic radioisotopes produced in the atmosphere, or within the shallow lithosphere in a myriad of natural archives has enabled scientists to quantify the spatial and temporal evolution of climatic and environmental processes which has shaped our planet. Enabling these advances were commensurate revolutions in AMS technology with the continual drive to reduce complexity, accelerator size and costs. Equivalent AMS performance for 14C, 10Be and 26Al is now possible on dedicated accelerator systems operating at 0.5MV - a considerable step down in size from the shared 10MV nuclear research laboratories of the past. Increased performance in ion detection, background suppression, efficiency, and innovative ion-source developments, together with fully computerised and remote operations afforded by new generation AMS systems has led to ever-increasing sample throughput and improved sensitivity. Together with continual improvements in global production rate calibration, scaling and modelling, a spectrum of diverse applications to “date events, changes in climatic conditions and trace processes across the landscape” has now become part of the researcher’s toolbox which augers well for future years of exciting discoveries. This talk will present a brief 35-year overview of key advances since the time of the first terrestrial in-situ 10Be, 26Al and 36Cl measurements were published in 1986. © 2015 Svensk Kärnbränslehantering ABen_AU
dc.identifier.citationFink, D. (2016). Tick-tock there is a clock in my rock – 30 years of counting atoms with accelerator mass spectrometry. Presented at Third Nordic Workshop on cosmogenic nuclide techniques, "Celebrating 30 years of counting cosmogenic atoms", Stockholm, June 8–10, 2016, (pp. 1). Retrieved from https://www.skb.com/publication/2483898/Nordic+workshop.pdfen_AU
dc.identifier.conferenceenddate10 June 2016en_AU
dc.identifier.conferencenameThird Nordic Workshop on cosmogenic nuclide techniques, 'Celebrating 30 years of counting cosmogenic atoms'en_AU
dc.identifier.conferenceplaceStockholm, Swedenen_AU
dc.identifier.conferencestartdate8 June 2016en_AU
dc.identifier.isbn978-91-980362-7-5en_AU
dc.identifier.pagination1en_AU
dc.identifier.urihttps://www.skb.com/publication/2483898/Nordic+workshop.pdfen_AU
dc.identifier.urihttps://apo.ansto.gov.au/dspace/handle/10238/12964en_AU
dc.language.isoenen_AU
dc.publisherSvensk Kärnbränslehantering ABen_AU
dc.subjectAcceleratorsen_AU
dc.subjectMass spectroscopyen_AU
dc.subjectIsotopesen_AU
dc.subjectClimatic changeen_AU
dc.subjectBeryllium 10en_AU
dc.subjectCarbon 14en_AU
dc.titleTick-tock there is a clock in my rock – 30 years of counting atoms with accelerator mass spectrometryen_AU
dc.typeConference Abstracten_AU
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