Wacker, L.

Solis, C.; Chavez, E.; Ortiz, M.E.; Andrade, E.; Ortiz, E.; Szidat, Sönke; Wacker, L. (2015). AMS-C14 analysis of graphite obtained with an Automated Graphitization Equipment (AGE III) from aerosol collected on quartz filters. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 361, pp. 419-422. Elsevier 10.1016/j.nimb.2015.05.027

Zotter, P.; Ciobanu, V. G.; Zhang, Yanlin; El-Haddad, I.; Macchia, M.; Daellenbach, K. R.; Salazar Quintero, Gary Abdiel; Huang, R.-J.; Wacker, L.; Hueglin, C.; Piazzalunga, A.; Fermo, P.; Schwikowski, Margit; Baltensperger, U.; Szidat, Sönke; Prévôt, A. S. H. (2014). Radiocarbon Analysis of Elemental and Organic Carbon in Switzerland during Winter-Smog Episodes from 2008 to 2012 – Part I: Source Apportionment and Spatial Variability. Atmospheric chemistry and physics, 14(24), pp. 13551-13570. European Geosciences Union 10.5194/acp-14-13551-2014

Hippe, K.; Ivy-Ochs, S.; Kober, F.; Zasadni, J.; Wieler, R.; Wacker, L.; Kubik, P.W.; Schlüchter, Christian (2014). Chronology of Lateglacial ice flow reorganization and deglaciation in the Gotthard Pass area, Central Swiss Alps, based on cosmogenic 10Be and in situ 14C. Quaternary geochronology, 19, pp. 14-26. Elsevier 10.1016/j.quageo.2013.03.003

Fahrni, Simon; Wacker, L.; Synal, H. A.; Szidat, Sönke (2013). Improving a gas ion source for C-14 AMS. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 294, pp. 320-327. Elsevier 10.1016/j.nimb.2012.03.037

Szidat, Sönke; Bench, G.; Bernardoni, V.; Calzolai, G.; Czimczik, C. I.; Derendorp, L.; Dusek, U.; Elder, K.; Fedi, M. E.; Genberg, J.; Gustafsson, O.; Kirillova, E.; Kondo, M.; McNichol, A. P.; Perron, N.; Santos, G. M.; Stenstrom, K.; Swietlicki, E.; Uchida, M.; Vecchi, R.; ... (2013). Intercomparison of C-14 Analysis of Carbonaceous Aerosols: Exercise 2009. Radiocarbon, 55(2-3), pp. 1496-1509. Arizona Board of Regents, University of Arizona 10.2458/azu_js_rc.55.16314

Wacker, L.; Fahrni, Simon; Hajdas, I.; Molnar, M.; Synal, H. A.; Szidat, Sönke; Zhang, Yanlin (2013). A versatile gas interface for routine radiocarbon analysis with a gas ion source. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 294, pp. 315-319. Elsevier 10.1016/j.nimb.2012.02.009

Zapf, Alexander; Nesje, A.; Szidat, Sönke; Wacker, L.; Schwikowski, Margit (2013). C-14 Measurements of Ice Samples from the Juvfonne Ice Tunnel, Jotunheimen, Southern Norway-Validation of a C-14 Dating Technique for Glacier Ice. Radiocarbon, 55(2-3), pp. 571-578. Arizona Board of Regents, University of Arizona 10.2458/azu_js_rc.55.16320

Zhang, Yanlin; Zotter, P.; Perron, N.; Prévôt, A.S.H.; Wacker, L.; Szidat, Sönke (2013). Fossil and Non-Fossil Sources of Different Carbonaceous Fractions in Fine and Coarse Particles by Radiocarbon Measurement. Radiocarbon, 55(203), pp. 1510-1520. Arizona Board of Regents, University of Arizona 10.2458/azu_js_rc.55.16278

Szidat, Sönke; Salazar Quintero, Gary Abdiel; Vogel, Edith; Battaglia, Michael; Wacker, L.; Synal, H.-A. (2013). First operation of the Bern AMS MICADAS. In: DPG Frühjahrstagung. Deutsche Physikalische Gesellschaft

Szidat, Sönke; Zotter, P.; Zhang, Yanlin; Ciobanu, V.G.; Wacker, L.; Baltensperger, U.; Prévôt, A.S.H. (2013). Fossil and non-fossil sources of OC and EC in Switzerland for winter-smog episodes. In: European Aerosol Conference 2013. Prague, Czech Republic. 01.-06.09.2013.

Zotter, P.; Ciobanu, V.G.; Zhang, Y.; El-Haddad, I.; Szidat, S.; Wacker, L.; Baltensperger, U.; Prévôt, A.S.H. (2013). 14C-based source apportionment of carbonaceous aerosols in Switzerland for 2008-2012 (Unpublished). In: 32nd Annual Conference of the American Association for Aerosol Research (AAAR). Portland, USA. 30.9.- 4.10. 2013.

Janovics, R; Kern, Zoltan; Güttler, D.; Wacker, L.; Barnabás, I.; Molnár, M. (2013). Radiocarbon impact in a nearby tree of a light-water VVER type nuclear power plant, Paks, Hungary. Radiocarbon, 55(2-3), pp. 826-832. Arizona Board of Regents, University of Arizona 10.2458/azu_js_rc.55.16381

Wacker, L.; Lippold, Jörg; Molnár, M.; Schulz, H. (2013). Towards radiocarbon dating of single foraminifera with a gas ion source. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 294, pp. 307-310. Elsevier 10.1016/j.nimb.2012.08.038

Wientjes, I.G.M.; De Van Wal, R.S.W.; Schwikowski, M.; Zapf, A.; Fahrni, S.; Wacker, L. (2012). Carbonaceous particles reveal that Late Holocene dust causes the dark region in the western ablation zone of the Greenland ice sheet. Journal of glaciology, 58(210), pp. 787-794. Cambridge: International Glaciological Society 10.3189/2012JoG11J165

Zhang, Yanlin; Perron, N.; Ciobanu, V.G.; Zotter, P.; Minguillón, M.C.; Wacker, L.; Prévôt, A.S.H.; Baltensperger, U.; Szidat, S. (2012). On the isolation of OC and EC and the optimal strategy of radiocarbon-based source apportionment of carbonaceous aerosols. Atmospheric chemistry and physics, 12(22), pp. 10841-10856. Katlenburg-Lindau (D): European Geosciences Union 10.5194/acp-12-10841-2012

Hippe, K.; Kober, F.; Wacker, L.; Fahrni, Simon; Ivy-Ochs, S.; Akçar, Naki; Schlüchter, Christian; Wieler, R (2012). An update on in situ cosmogenic 14C analysis at ETH Zürich. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 294, pp. 81-86. Amsterdam: Elsevier 10.1016/j.nimb.2012.06.020

Ceburnis, D.; Garbaras, A.; Szidat, S.; Rinaldi, M.; Fahrni, Simon; Perron, N.; Wacker, L.; Leinert, S.; Remeikis, V.; Facchini, M. C.; Prevot, A. S. H.; Jennings, S. G.; Ramonet, M.; O'Dowd, C. D. (2011). Quantification of the carbonaceous matter origin in submicron marine aerosol by 13C and 14C isotope analysis. Atmospheric chemistry and physics, 11(16), pp. 8593-8606. Katlenburg-Lindau (D): European Geosciences Union 10.5194/acp-11-8593-2011

Minguillon, M. C.; Perron, N.; Querol, X.; Szidat, S.; Fahrni, Simon; Alastuey, A.; Jimenez, J. L.; Mohr, C.; Ortega, A. M.; Day, D. A.; Lanz, V. A.; Wacker, L.; Reche, C.; Cusack, M.; Amato, F.; Kiss, G.; Hoffer, A.; Decesari, S.; Moretti, F.; Hillamo, R.; ... (2011). Fossil versus contemporary sources of fine elemental and organic carbonaceous particulate matter during the DAURE campaign in Northeast Spain. Atmospheric chemistry and physics, 11(23), pp. 12067-12084. Katlenburg-Lindau (D): European Geosciences Union 10.5194/acp-11-12067-2011

Fahrni, Simon; Szidat, S.; Synal, H.A.; Wacker, L. (2011). Improving a gas ion source for 14C AMS. In: International Workshop on Small Scale Radiocarbon Analysis. Zurich. 13-16 September, 2011.

Szidat, S.; Fahrni, Simon; Perron, N.; Prévôt, A.S.H.; Rzaca, M.; Bauer, H.; Puxbau, H.; Wacker, L. (2011). Compound-specific 14C analysis of acidic aerosol components. In: 12th Accelerator Mass Spectrometry Conference. Wellington, New Zealand. 20-25 March, 2011.

Szidat, S.; Fahrni, Simon; Wacker, L.; Synal, H.A. (2011). Improving and understanding a gas ion source for 14C AMS. In: 12th Accelerator Mass Spectrometry Conference. Wellington, New Zealand. 20-25 March, 2011.

Szidat, S.; Zhang, Yanlin; Perron, N.; Prévôt, A.S.H.; Wacker, L. (2011). Radiocarbon measurements of carbonaceous aerosols: the new sample preparation line at University of Bern. In: 12th Accelerator Mass Spectrometry Conference. Wellington, New Zealand. 20-25 March, 2011.

Wacker, L.; Bernasconi, S.; Birkholz, A.; Fahrni, Simon; Gigera, M.; Hajdas, I.; Perron, N.; Ruff, Matthias; Schulze-Koenig, T.; Smittenberg, R.; Synal, H.A.; Szidat, S.; Zhang, Y.L. (2011). A versatile gas interface for routine radiocarbon analyses with a gas ion source. In: 12th Accelerator Mass Spectrometry Conference. Wellington, New Zealand. 20-25 March, 2011.

Zhang, Y.L.; Perron, N.; Prévôt, A.S.H.; Wacker, L.; Szidat, S. (2011). Radiocarbon measurements of carbonaceous aerosols: the new sample preparation line at University of Bern, 12th Swiss Global Change Day, Bern, Switzerland, 19 April 2011.

Zhang, Y.L.; Perron, N.; Prévôt, A.S.H.; Wacker, L.; Szidat, S. (2011). On the quantification of OC and EC and their isolation for 14C measurement: a modified thermal-optical method, 10th International Conference on Carbonaceous Particles in the Atmosphere, Vienna, Austria, 26-29 June, 2011.

Zhang, Y.L.; Zapf, A.; Schwikowski, M.; Prévôt, A.S.H.; Fahrni, Simon; Wacker, L.; Szidat, S. (2011). Microgram level radiocarbon determination on carbonaceous aerosol particles in the environment. In: International Workshop on Small Scale Radiocarbon Analysis. Zurich. 13-16 September, 2011.

Aiken, A.C.; de Foy, B.; Wiedinmyer, C.; DeCarlo, P.F.; Ulbrich, I.M.; Wehrli, M.N.; Szidat, Sönke; Prevot, A.S.H.; Noda, J.; Wacker, L.; Volkamer, R.; Fortner, E.; Wang, J.; Laskin, A.; Shutthanandan, V.; Zheng, J.; Zhang, R.; Paredes-Miranda, G.; Arnott, W.P.; Molina, L.T.; ... (2010). Mexico city aerosol analysis during MILAGRO using high resolution aerosol mass spectrometry at the urban supersite (T0) - Part 2: Analysis of the biomass burning contribution and the non-fossil carbon fraction. Atmospheric chemistry and physics, 10(12), pp. 5315-5341. Katlenburg-Lindau (D): European Geosciences Union 10.5194/acp-10-5315-2010

Fahrni, Simon; Gäggeler, Heinz; Hajdas, I.; Ruff, Matthias; Szidat, Sönke; Wacker, L. (2010). Direct measurements of small 14C samples after oxidation in quartz tubes. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 268(7-8), pp. 787-789. Amsterdam: Elsevier 10.1016/j.nimb.2009.10.031

Fahrni, Simon; Ruff, Matthias; Wacker, L.; Perron, N.; Gäggeler, Heinz; Szidat, Sönke (2010). A preparative 2D-chromatography method for compound-specific radiocarbon analysis of dicarboxylic acids in aerosols. Radiocarbon, 52(2), pp. 752-760. Tucson, Ariz.: Arizona Board of Regents, University of Arizona

Perron, N.; Szidat, Sönke; Fahrni, Simon; Ruff, Matthias; Wacker, L.; Prévôt, A.S.H.; Baltensperger, U. (2010). Towards on-line 14C analysis of carbonaceous aerosol fractions. Radiocarbon, 52(2), pp. 761-768. Tucson, Ariz.: Arizona Board of Regents, University of Arizona

Ruff, Matthias; Fahrni, Simon; Gäggeler, Heinz; Hajdas, I.; Suter, M.; A Synal, H.; Szidat, Sönke; Wacker, L. (2010). Online radiocarbon measurements of small samples using Elemental Analyzer and MICADAS gas ion source. Radiocarbon, 52(4), pp. 1645-1656. Tucson, Ariz.: Arizona Board of Regents, University of Arizona

Ruff, Matthias; Szidat, Sönke; Gäggeler, Heinz; Suter, M.; Synal, H.-A.; Wacker, L. (2010). Gaseous radiocarbon measurements of small samples. Nuclear Instruments and Methods in Physics Research Section B: Beam Interactions with Materials and Atoms, 268(7-8), pp. 790-794. Elsevier 10.1016/j.nimb.2009.10.032

Sandradewi, J.; Prévôt, A. S. H.; Alfarra, M. R.; Szidat, Sönke; Wehrli, M. N.; Ruff, Matthias; Weimer, S.; Lanz, V. A.; Weingartner, E.; Perron, Nolwenn; Caseiro, A.; Kasper-Giebl, A.; Puxbaum, H.; Wacker, L.; Baltensperger, U. (2008). Comparison of several wood smoke markers and source apportionment methods for wood burning particulate mass (Submitted). Atmospheric chemistry and physics Discussions, 8(2), pp. 8091-8118. European Geosciences Union 10.5194/acpd-8-8091-2008

Szidat, Sönke; Jenk, Theo; Gäggeler, Heinz; Synal, H.-A.; Fisseha, R.; Baltensperger, U.; Kalberer, M.; Samburova, V.; Wacker, L.; Saurer, M.; Schwikowski, Margit; Hajdas, I. (2004). Source apportionment of aerosols by 14C measurements in different carbonaceous particle fractions. Radiocarbon, 46, pp. 475-484. Arizona Board of Regents, University of Arizona