TY - JOUR AU - Usoskin, Ilya AU - Miyake, Fusa AU - Baroni, Melanie AU - Brehm, Nicolas AU - Dalla, Silvia AU - Hayakawa, Hisashi AU - Hudson, Hugh AU - Jull, Timothy AJ AU - Knipp, Delores AU - Koldobskiy, Sergey AU - Maehara, Hiroyuki AU - Mekhaldi, Florian AU - Notsu, Yuta AU - Poluianov, Stepan AU - Rozanov, Eugene AU - Shapiro, Alexander AU - Spiegl, Tobias AU - Sukhodolov, Timofei AU - Uusitalo, Joonas AU - Wacker, Lukas TI - Extreme Solar Events: Setting up a Paradigm JF - SPACE SCIENCE REVIEWS J2 - SPACE SCI REV VL - 219 PY - 2023 IS - 8 PG - 114 SN - 0038-6308 DO - 10.1007/s11214-023-01018-1 UR - https://m2.mtmt.hu/api/publication/34397517 ID - 34397517 N1 - Space Physics and Astronomy Research Unit and Sodankylä Geophysical Observatory, University of Oulu, Oulu, 90014, Finland Institute for Space-Earth Environmental Research, Nagoya University, Nagoya, 464-8601, Japan Aix Marseille Univ, CNRS, IRD, INRAE, CEREGE, Aix-en-Provence, France Department of Physics, ETH Zurich, Otto-Stern-Weg 5, Zurich, 8093, Switzerland Jeremiah Horrocks Institute, University of Central Lancashire, Preston, PR1 2HE, United Kingdom Institute for Advanced Research, Nagoya University, Nagoya, 4648601, Japan RAL Space, Rutherford Appleton Laboratory, Science and Technology Facilities Council, Didcot, OX11 0QX, United Kingdom RIKEN, Wako, 3510198, Japan University of Glasgow, Glasgow, G12 8QQ, United Kingdom SSL, UC Berkeley, Berkeley, CA 94720, United States Department of Geosciences, The University of Arizona, 1040 East Fourth St, Tucson, AZ 85721, United States Institute for Nuclear Research, Bem ter 18c, Debrecen, 4026, Hungary Smead Aerospace Engineering Sciences Department, University of Colorado Boulder, 3775 Discovery Drive, Boulder, 80903, United States Space Weather Technology Research and Education Center, University of Colorado Boulder, 3775 Discovery Drive, Boulder, 80903, United States Subaru Telescope Okayama Branch Office, National Astronomical Observatory of Japan, 3037-5 Honjo, Kamogata, Asakuchi, Okayama, 719-0232, Japan Department of Geology-Quaternary Sciences, Lund University, Lund, 22362, Sweden British Antarctic Survey, Ice Dynamics and Paleoclimate, Cambridge, CB3 0ET, United Kingdom Laboratory for Atmospheric and Space Physics, University of Colorado Boulder, 3665 Discovery Drive, Boulder, CO 80303, United States National Solar Observatory, 3665 Discovery Drive, Boulder, CO 80303, United States Physikalisch-Meteorologisches Observatorium Davos and World Radiation Center, Dorfstrasse 33, Davos, 7260, Switzerland Ozone layer and upper atmosphere research laboratory, St. Petersburg State University, Peterhof, Ulyanovskaya ul. 1, St. Petersburg, 198504, Russian Federation Max-Planck-Institut für Sonnensystemforschung, Justus-von-Liebig-Weg 3, Göttingen, 37077, Germany Institute of Meteorology, Free University of Berlin, Carl-Heinrich-Becker-Weg 6-10, Berlin, 12165, Germany Finnish Museum of Natural History, University of Helsinki, P.O. Box 64, Helsinki, 00014, Finland Department of Physics, University of Helsinki, P.O. Box 64, Helsinki, 00014, Finland Export Date: 1 January 2024 CODEN: SPSRA Correspondence Address: Usoskin, I.; Space Physics and Astronomy Research Unit and Sodankylä Geophysical Observatory, Finland; email: ilya.usoskin@oulu.fi LA - English DB - MTMT ER - TY - JOUR AU - Varga, Tamás AU - Szejke, Dóra AU - Nemes, Zoltán AU - Jull, Timothy AJ AU - Molnár, Mihály TI - THE POTENTIAL OF BIOGENIC FRACTION ANALYSIS BY RADIOCARBON IN FOOD, DRUG, AND COSMETIC PRODUCTS JF - RADIOCARBON J2 - RADIOCARBON VL - 65 PY - 2023 IS - 5 SP - 1176 EP - 1192 PG - 17 SN - 0033-8222 DO - 10.1017/RDC.2023.98 UR - https://m2.mtmt.hu/api/publication/34265370 ID - 34265370 N1 - Export Date: 23 November 2023 CODEN: RACAA Correspondence Address: Varga, T.; International Radiocarbon Ams Competence and Training (INTERACT) Center, Bem tér 18/c, Hungary; email: varga.tamas@atomki.hu AB - Biobased content analysis is a well-established, analytically independent, standardized method to determine the biobased content of fuels and plastics, based on differences of the specific radiocarbon ( 14 C) activity of fossil and recent biogenic compounds. This biogenic content analysis can be useful for the producers as a quality assurance tool, for the customers as feedback about the truly biobased products and for the control organizations as an independent analytical tool to prove the biological origin. More than 100 commercially available foods, cosmetics, and drug samples have been used for biobased carbon content analysis by accelerator mass spectrometry (AMS) 14 C measurement to demonstrate the potential of this technique. Our results show that this measurement technique is a unique tool for the determination of biocontent in foodstuff and medical products. Most of the tested materials were nearly or completely biobased (≥ 98 pMC), and no completely fossil-based final product was detected. The lowest biogenic compound was measured in a vanilla aroma flavor. In 45 of the 102 samples selected a wide range (2–98%) presented fossil-based carbon content. The method can be applied for monitoring raw materials and final products for biobased content in the industry and consumer protection as well. LA - English DB - MTMT ER - TY - JOUR AU - Kutschera, Walter AU - Jull, Timothy AJ AU - Paul, Michael AU - Wallner, Anton TI - Atom counting with accelerator mass spectrometry JF - REVIEWS OF MODERN PHYSICS J2 - REV MOD PHYS VL - 95 PY - 2023 IS - 3 SN - 0034-6861 DO - 10.1103/RevModPhys.95.035006 UR - https://m2.mtmt.hu/api/publication/34237373 ID - 34237373 N1 - Faculty of Physics - Isotope Physics, University of Vienna, Vienna Environmental Research Accelerator (VERA), Waehringerstrasse 17, Vienna, A-1090, Austria Geosciences and Physics, University of Arizona, Tucson, AZ 85721-0077, United States Racah Institute of Physics, The Hebrew University of Jerusalem, Jerusalem, 91904, Israel Accelerator Mass Spectrometry and Isotope Research, Helmholtz-Zentrum Dresden-Rossendorf, Institute of Ion Beam Physics and Materials Research, Bautzner Landstrasse 400, Dresden, D-01328, Germany Isotope Climatology and Environmental Research Centre (ICER), Institute for Nuclear Research, Debrecen, 4026, Hungary Institute of Nuclear and Particle Physics, Technische Universität Dresden, Dresden, D-01062, Germany Export Date: 4 November 2023 Correspondence Address: Kutschera, W.email: walter.kutschera@univie.ac.at LA - English DB - MTMT ER - TY - GEN AU - Molnár, Mihály AU - Baráth, Balázs Áron AU - Jull, Timothy AJ TI - VAS ALAPANYAGÚ ESZKÖZÖK C-14 TARTALMÁNAK MÉRÉSTECHNIKAI FEJLESZTÉSE A HEKAL AMS LABORATÓRIUMBAN CY - 2023. április 18–20. Gyula, Hungary PY - 2023 UR - https://m2.mtmt.hu/api/publication/34062100 ID - 34062100 LA - Hungarian DB - MTMT ER - TY - GEN AU - Molnár, Mihály AU - Baráth, Balázs Áron AU - László, Szolnoki AU - János, Dani AU - Jull, Timothy AJ TI - Fast and effective sample preparation and AMS C-14 analyses of iron material at HEKAL AMS Lab, Debrecen, HU CY - May 7–12, 2023. Budapest, Hungary PY - 2023 UR - https://m2.mtmt.hu/api/publication/34062097 ID - 34062097 LA - English DB - MTMT ER - TY - JOUR AU - Zhou, W. AU - Kong, X. AU - Paterson, G.A. AU - Sun, Y. AU - Wu, Y. AU - Ao, H. AU - Xian, F. AU - Du, Y. AU - Tang, L. AU - Zhou, J. AU - Shi, Z. AU - Jull, Timothy AJ AU - Zhao, G. AU - An, Z. TI - Eccentricity-paced geomagnetic field and monsoon rainfall variations over the last 870 kyr JF - PROCEEDINGS OF THE NATIONAL ACADEMY OF SCIENCES OF THE UNITED STATES OF AMERICA J2 - P NATL ACAD SCI USA VL - 120 PY - 2023 IS - 17 PG - 7 SN - 0027-8424 DO - 10.1073/pnas.2211495120 UR - https://m2.mtmt.hu/api/publication/33767356 ID - 33767356 N1 - State Key Laboratory of Loess, Institute of Earth Environment, Chinese Academy of Sciences, Xi'an, 710061, China Shaanxi Key Laboratory of Accelerator Mass Spectrometry and Application, Xi'an Accelerator Mass Spectrometry Center, Xi'an, 710061, China Faculty of Geographical Science, Beijing Normal UniversityBeijing 100875, China Department of Earth, Ocean and Ecological Sciences, Geomagnetism Laboratory, University of Liverpool, Liverpool, L69 3GP, United Kingdom School of Human Settlements and Civil Engineering, Xi'an Jiaotong University, Xi'an, 710049, China University of Chinese Academy of SciencesBeijing 100049, China Xi'an Institute for Innovative Earth Environment Research, Xi'an, 710061, China Isotope Climatology and Environmental Research Centre, Institute for Nuclear Research, Debrecen H, 4026, Hungary University of Arizona, Tucson, AZ 85721, United States Export Date: 24 April 2023 LA - English DB - MTMT ER - TY - JOUR AU - Varga, Tamás AU - Hajdas, I. AU - Calcagnile, L. AU - Quarta, G. AU - Major, István AU - Jull, Timothy AJ AU - Molnár, Anita AU - Molnár, Mihály TI - Intercomparison exercise on fuel samples for determination of biocontent ratio by 14c accelerator mass spectrometry JF - RADIOCARBON J2 - RADIOCARBON VL - 65 PY - 2023 IS - 2 SP - 539 EP - 548 PG - 10 SN - 0033-8222 DO - 10.1017/RDC.2023.7 UR - https://m2.mtmt.hu/api/publication/33767355 ID - 33767355 N1 - Export Date: 24 April 2023 CODEN: RACAA Correspondence Address: Varga, T.; International Radiocarbon Ams Competence and Training (INTERACT) Center, Hungary; email: varga.tamas@atomki.mta.hu AB - The method of determining the biobased carbon content in liquid fuel samples is standardized, but different laboratories use different protocols during sample preparation and perform the measurements using different machines. The accelerator mass spectrometry (AMS) laboratories use different combustion, preparation, and graphitization methods for the graphite production for the spectrometric measurements. As a result, the intercomparison between the laboratories is inevitable to prove precision and accuracy and to demonstrate that the results are comparable. In this study, we present the results of an intercomparison campaign involving three 14C accelerator mass spectrometry laboratories. Five samples were used in the measurement campaign, including two biocomponents (fatty acid methyl ester, hydrotreated vegetable oil), one fossil component (fossil diesel), and two blends (mixtures of fossil and biocomponent with 90–10% mixing ratio) in the laboratories of CEDAD (Italy), ETH (Switzerland), and INTERACT (Hungary). The results presented by the laboratories are comparable, and all three laboratories could determine the biobased carbon content of the samples within 1% relative uncertainty, which is acceptable in the scientific, economic, and industrial fields for biocomponent determination. LA - English DB - MTMT ER - TY - JOUR AU - Varga, Tamás AU - Molnár, Mihály AU - Molnár, Anita AU - Jull, Timothy AJ AU - Palcsu, László AU - László, Elemér TI - Radiocarbon dating of microliter sized Hungarian Tokaj wine samples JF - JOURNAL OF FOOD COMPOSITION AND ANALYSIS J2 - J FOOD COMPOS ANAL VL - 118 PY - 2023 PG - 8 SN - 0889-1575 DO - 10.1016/j.jfca.2023.105203 UR - https://m2.mtmt.hu/api/publication/33660298 ID - 33660298 N1 - International Radiocarbon AMS Competence and Training Center (INTERACT), Institute for Nuclear Research (ATOMKI), P.O Box 51, Debrecen, H-4001, Hungary University of Debrecen, Doctoral School of Physics, Egyetem tér 1., Debrecen, 4032, Hungary Isotoptech Ltd, P.O. Box 390, Debrecen, H-4001, Hungary Department of Geosciences, University of Arizona, Tucson, AZ 85721, United States University of Arizona AMS Laboratory, Tucson, AZ 85721, United States Export Date: 24 February 2023 CODEN: JFCAE Correspondence Address: Varga, T.; International Radiocarbon AMS Competence and Training Center (INTERACT), P.O Box 51, Hungary; email: varga.tamas@atomki.hu Correspondence Address: László, E.; International Radiocarbon AMS Competence and Training Center (INTERACT), P.O Box 51, Hungary; email: laszlo.elemer@atomki.hu LA - English DB - MTMT ER - TY - JOUR AU - Cao, Huihui AU - Wang, Zongli AU - He, Jianhua AU - Guo, Jiale AU - Jull, Timothy AJ AU - Zhou, Aifeng AU - Dong, Guanghui AU - Chen, Fahu TI - PERFORMANCE AND INTER-COMPARISON TESTS OF THE MICADAS AT THE RADIOCARBON LABORATORY OF LANZHOU UNIVERSITY, CHINA JF - RADIOCARBON J2 - RADIOCARBON VL - 65 PY - 2023 IS - 1 SP - 41 EP - 80 PG - 40 SN - 0033-8222 DO - 10.1017/RDC.2022.80 UR - https://m2.mtmt.hu/api/publication/33648395 ID - 33648395 N1 - Key Laboratory of Western China's Environmental System, Ministry of Education, College of Earth and Environmental Sciences, Lanzhou University, Gansu, Lanzhou, 730000, China Department of Geosciences, University of Arizona, Tucson, AZ 85721, United States Arizona Accelerator Mass Spectrometry Laboratory, University of Arizona, Tucson, AZ 85721, United States Isotope Climatology and Environmental Research Centre (ICER), Institute for Nuclear Research Bem ter 18/c, Debrecen, 4026, Hungary State Key Laboratory of Tibetan Plateau Earth System Science (LATPES), Institute of Tibetan Plateau Research, Chinese Academy of Sciences, Beijing, 100101, China Export Date: 2 March 2023 CODEN: RACAA Correspondence Address: Wang, Z.; Key Laboratory of Western China's Environmental System, Gansu, China; email: zlwang@lzu.edu.cn Correspondence Address: Zhou, A.; Key Laboratory of Western China's Environmental System, Gansu, China; email: zhouaf@lzu.edu.cn LA - English DB - MTMT ER - TY - CONF AU - Baráth, Balázs Áron AU - Jull, Timothy AJ AU - Molnár, Mihály TI - Novel sample preparation approach to investigate ¹⁴C from iron material T2 - 24th Radiocarbon 10th 14C & Archaeology Conference Abstract Book PY - 2022 UR - https://m2.mtmt.hu/api/publication/34056405 ID - 34056405 N1 - 34056401 másolata. LA - English DB - MTMT ER -