Search Results - "Wacker, L."

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History of the Larsen C Ice Shelf reconstructed from sub-ice shelf and offshore sediments.

Authors: Smith, J. A. Hillenbrand, C.-D. Subt, C. et al.

Source: Geology; Aug2021, Vol. 49 Issue 8, p978-982, 5p

Radiocarbon: A key tracer for studying EarthÕs dynamo, climate system, carbon cycle, and Sun.

Authors: Heaton, T. J. Bard, E. Ramsey, C. Bronk et al.

Source: Science (pre-March 2025). 11/5/2021, Vol. 374 Issue 6568, p707-707. 1p. 1 Color Photograph.

Subjects: Carbon isotopes, Radiocarbon dating, Climatology, Magnetic fields, Earth (Planet)

Re-evaluation of the New Oxalic Acid standard with AMS.

Authors: Wacker, L. Bollhalder, S. Sookdeo, A. et al.

Source: Nuclear Instruments & Methods in Physics Research Section B. Sep2019, Vol. 455, p178-180. 3p.

Subjects: Accelerator mass spectrometry, Oxalic acid, Time measurements, Carbon isotopes

Tracing the Three Atlantic Branches Entering the Arctic Ocean With ¹²⁹I and ²³⁶U.

Authors: Casacuberta, N. Christl, M. Vockenhuber, C. et al.

Source: Journal of Geophysical Research. Oceans. Sep2018, Vol. 123 Issue 9, p6909-6921. 13p.

Subject Terms: *Sea ice, *Ocean currents, *Ice, *Water currents, Isotopes

Progress report on a novel in situ14C extraction scheme at the University of Cologne.

Authors: Fülöp, R.-H. Wacker, L. Dunai, T.J.

Source: Nuclear Instruments & Methods in Physics Research Section B. Oct2015, Vol. 361, p20-24. 5p.

Subjects: Carbon isotopes, Universität zu Köln. Institut für Biochemie, Extraction (Chemistry), Calibration, Quartz, Phase transitions

Comprehensive radiocarbon analysis of benzene polycarboxylic acids (BPCAs) derived from pyrogenic carbon in environmental samples.

Authors: Hanke, U M Wacker, L Haghipour, N et al.

Source: Radiocarbon; Aug2017, Vol. 59 Issue 4, p1103-1116, 14p

Lactation and menstruation shift the vaginal microbiota in captive rhesus monkeys to be more similar to the male urethral microbiota.

Authors: Hallmaier-Wacker, L. K. Lüert, S. Roos, C. et al.

Source: Scientific Reports. 11/22/2019, Vol. 9 Issue 1, pN.PAG-N.PAG. 1p.

A simple laser locking system based on a field-programmable gate array.

Authors: Jørgensen, N. B. Birkmose, D. Trelborg, K. et al.

Source: Review of Scientific Instruments; Jul2016, Vol. 87 Issue 7, p073106-1-073106-5, 5p, 2 Diagrams, 4 Graphs

Measurement of actinides on a compact AMS system working at 300kV

Authors: Wacker, L. Chamizo, E. Fifield, L.K. et al.

Source: Nuclear Instruments & Methods in Physics Research Section B. Oct2005, Vol. 240 Issue 1/2, p452-457. 6p.

Subjects: Actinide elements, Mass spectrometry, Spectrum analysis, Isotopes

Developments in AMS of ⁹⁹Tc.

Authors: Wacker, L. Fifield, L. K. Tims, S.G.

Source: Nuclear Instruments & Methods in Physics Research Section B. Aug2004, Vol. 223-224, p185-189. 5p.

Subjects: Accelerator mass spectrometry, Ionization of gases, Detectors, Energy dissipation, Algorithms

Evidence of 11-year solar cycles in tree rings from 1010 to 1110 AD – Progress on high precision AMS measurements

Authors: Güttler, D. Wacker, L. Kromer, B. et al.

Source: Nuclear Instruments & Methods in Physics Research Section B. Jan2013, Vol. 294, p459-463. 5p.

Subjects: Solar cycle, Tree-rings, Carbon isotopes, Optical resolution, Accelerator mass spectrometry

Geographic Terms: Germany

Improving a gas ion source for ¹⁴C AMS

Authors: Fahrni, S.M. Wacker, L. Synal, H.-A. et al.

Source: Nuclear Instruments & Methods in Physics Research Section B. Jan2013, Vol. 294, p320-327. 8p.

Subjects: Ion sources, Carbon isotopes, Accelerator mass spectrometry, Graphitization, Sputtering (Physics), Performance evaluation

A versatile gas interface for routine radiocarbon analysis with a gas ion source

Authors: Wacker, L. Fahrni, S.M. Hajdas, I. et al.

Source: Nuclear Instruments & Methods in Physics Research Section B. Jan2013, Vol. 294, p315-319. 5p.

Subjects: Carbon isotopes, Ion sources, Graphitization, Stable isotopes, Carbon dioxide, Helium

Direct coupling of a laser ablation cell to an AMS

Authors: Wacker, L. Münsterer, C. Hattendorf, B. et al.

Source: Nuclear Instruments & Methods in Physics Research Section B. Jan2013, Vol. 294, p287-290. 4p.

Subjects: Laser ablation, Accelerator mass spectrometry, Carbon dioxide, Energy density, Ionization of gases, Surfaces (Physics)

Towards radiocarbon dating of single foraminifera with a gas ion source

Authors: Wacker, L. Lippold, J. Molnár, M. et al.

Source: Nuclear Instruments & Methods in Physics Research Section B. Jan2013, Vol. 294, p307-310. 4p.

Subjects: Foraminifera, Radiocarbon dating, Ionization of gases, Accelerator mass spectrometry, Chemical decomposition, Carbonates

A novel approach to process carbonate samples for radiocarbon measurements with helium carrier gas

Authors: Wacker, L. Fülöp, R.-H. Hajdas, I. et al.

Source: Nuclear Instruments & Methods in Physics Research Section B. Jan2013, Vol. 294, p214-217. 4p.

Subjects: Carbonates, Carbon isotopes, Helium, Chemical decomposition, Chemical reduction, Mass spectrometry, Graphitization

Bats: A new tool for AMS data reduction

Authors: Wacker, L. Christl, M. Synal, H.-A.

Source: Nuclear Instruments & Methods in Physics Research Section B. Apr2010, Vol. 268 Issue 7/8, p976-979. 4p.

Subjects: Accelerator mass spectrometry, Data reduction, Associations, institutions, etc., Particle accelerators, Carbon isotopes, Algorithms

A revolutionary graphitisation system: Fully automated, compact and simple

Authors: Wacker, L. Němec, M. Bourquin, J.

Source: Nuclear Instruments & Methods in Physics Research Section B. Apr2010, Vol. 268 Issue 7/8, p931-934. 4p.

Subjects: Graphitization, Carbon isotopes, Accelerator mass spectrometry, Low temperature engineering, Transport theory, Carbon dioxide, Radiation trapping, Molecular sieves

Novel Laser Ablation Sampling Device for the Rapid Radiocarbon Analysis of Carbonate Samples by Accelerator Mass Spectrometry.

Authors: Welte, C Wacker, L Hattendorf, B et al.

Source: Radiocarbon; Jun2016, Vol. 58 Issue 2, p419-435, 17p