S. Siem

7.5k citations

136 papers · 2.7k · h-index 30

Impact in

Nuclear and High Energy Physics top 0.5%
- Nuclear physics research studies
- Astronomical and nuclear sciences
- Quantum Chromodynamics and Particle Interactions
Radiation top 0.5%
- Nuclear Physics and Applications

Papers in

Nuclear and High Energy Physics 124
- Nuclear physics research studies 122
- Astronomical and nuclear sciences 53
- Quantum Chromodynamics and Particle Interactions 24
Radiation 48
- Nuclear Physics and Applications 43

Co-authors: M. Guttormsen (101 shared papers)A. Schiller (49 shared papers)J. Rekstad (43 shared papers)A. Voinov (45 shared papers)A. C. Larsen (79 shared papers)E. Melby (16 shared papers)A. Görgen (48 shared papers)G. M. Tveten (32 shared papers)
Journals: Physical review. C (17 papers)Physical Review Letters (8 papers)Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment (4 papers)The European Physical Journal A (3 papers)Nuclear Physics A (3 papers)
Partner nations: Norway United States South Africa

In The Last Decade

S. Siem

123 papers receiving 2.7k citations

Peers

Countries citing papers authored by S. Siem

Since Specialization

Citations

This map shows the geographic impact of S. Siem's research. It shows the number of citations coming from papers published by authors working in each country. You can also color the map by specialization and compare the number of citations received by S. Siem with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites S. Siem more than expected).

Fields of papers citing papers by S. Siem

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by S. Siem. Nodes represent research fields, and links connect fields that are likely to share authors. Colored nodes show fields that tend to cite the papers produced by S. Siem. The network helps show where S. Siem may publish in the future.

Co-authors

The 25 scholars most cited alongside S. Siem, linked wherever they have co-authored with each other. Click a name or a connecting line to browse the papers they share.

Border = papers with S. Siem Line = papers co-authored together S. Siem links everyone, so they are left out of the graph.

All Works

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20 of 20 papers shown

Showing the 20 most-cited of 136 papers — load more, or switch the sort, to bring in the rest.

#	Work
1	Extraction of level density and γ strength function from primary γ spectra Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment ·A. Schiller, L. Bergholt, M. Guttormsen, E. Melby, J. Rekstad, S. Siem	2000	196
2	Critical temperature for quenching of pair correlations Physical Review C ·A. Schiller, A. Bjerve, M. Guttormsen, M. Hjorth‐Jensen, F. Ingebretsen, E. Melby, S. Messelt, J. Rekstad, S. Siem, S. W. Ødegård	2001	110
3	Radiative strength functions inMo93−98 Physical Review C ·M. Guttormsen, R. Chankova, U. Agvaanluvsan, E. Algin, L. A. Bernstein, F. Ingebretsen, T. Lönnroth, S. Messelt, G. E. Mitchell, J. Rekstad, A. Schiller, S. Siem, A. C. Sunde, A. Voinov, S. W. Ødegård	2005	99
4	Reference database for photon strength functions The European Physical Journal A ·S. Goriely, P. Dimitriou, M. Wiedeking, T. Belgya, R. B. Firestone, Jan Kopecký, M. Krtička, V.A. Plujko, R. Schwengner, S. Siem, H. Utsunomiya, S. Hilaire, S. Péru, Y. S. Cho, D. Filipescu, Nobuyuki Iwamoto, Toshihiko Kawano, В.В. Варламов, Ruowen Xu	2019	93
5	Analysis of possible systematic errors in the Oslo method Physical Review C ·A. C. Larsen, M. Guttormsen, M. Krtic̆ka, E. Běták, A. Bürger, A. Görgen, H. T. Nyhus, J. Rekstad, A. Schiller, S. Siem, H. K. Toft, G. M. Tveten, A. Voinov, K. Wikan	2011	90
6	Large Enhancement of Radiative Strength for Soft Transitions in the Quasicontinuum Physical Review Letters ·A. Voinov, E. Algin, U. Agvaanluvsan, T. Belgya, R. Chankova, M. Guttormsen, G. E. Mitchell, J. Rekstad, A. Schiller, S. Siem	2004	83
7	Observation of Thermodynamical Properties in the162Dy,166Er, and172YbNuclei Physical Review Letters ·E. Melby, L. Bergholt, M. Guttormsen, M. Hjorth‐Jensen, F. Ingebretsen, S. Messelt, J. Rekstad, A. Schiller, S. Siem, S. W. Ødegård	1999	77
8	γ-ray strength function and pygmy resonance in rare earth nuclei Physical Review C ·A. Voinov, M. Guttormsen, E. Melby, J. Rekstad, A. Schiller, S. Siem	2001	72
9	Thermal properties and radiative strengths inDy160,161,162 Physical Review C ·M. Guttormsen, A. Bagheri, R. Chankova, J. Rekstad, S. Siem, A. Schiller, A. Voinov	2003	66
10	Thermal and electromagnetic properties of166Erand167Er Physical Review C ·E. Melby, M. Guttormsen, J. Rekstad, A. Schiller, S. Siem, A. Voinov	2001	61
11	Level densities and thermodynamical quantities of heatedMo93−98isotopes Physical Review C ·R. Chankova, A. Schiller, U. Agvaanluvsan, E. Algin, L. A. Bernstein, M. Guttormsen, F. Ingebretsen, T. Lönnroth, S. Messelt, G. E. Mitchell, J. Rekstad, S. Siem, A. C. Larsen, A. Voinov, S. W. Ødegård	2006	55
12	Evidence for the Dipole Nature of the Low-EnergyγEnhancement inFe56 Physical Review Letters ·A. C. Larsen, N. Blasi, A. Bracco, F. Camera, T. K. Eriksen, A. Görgen, M. Guttormsen, T. W. Hagen, S. Leoni, B. Million, H. T. Nyhus, T. Renstrøm, S. J. Rose, I. E. Ruud, S. Siem, T. G. Tornyi, G. M. Tveten, A. Voinov, M. Wiedeking	2013	53
13	Scissors resonance in the quasicontinuum of Th, Pa, and U isotopes Physical Review C ·M. Guttormsen, L. A. Bernstein, A. Görgen, B. Jurado, S. Siem, M. Aïche, Q. Ducasse, F. Giacoppo, F. Gunsing, T. W. Hagen, A. C. Larsen, M. Lebois, B. Leniau, T. Renstrøm, S. J. Rose, T. Tornyi, G. M. Tveten, M. Wiedeking, J. N. Wilson	2014	52
14	Observation of Large Scissors Resonance Strength in Actinides Physical Review Letters ·M. Guttormsen, L. A. Bernstein, A. Bürger, A. Görgen, F. Gunsing, T. W. Hagen, A. C. Larsen, T. Renstrøm, S. Siem, M. Wiedeking, J. N. Wilson	2012	49
15	Evolution of the pygmy dipole resonance in Sn isotopes Physical Review C ·H. K. Toft, A. C. Larsen, A. Bürger, M. Guttormsen, A. Görgen, H. T. Nyhus, T. Renstrøm, S. Siem, G. M. Tveten, A. Voinov	2011	47
16	Level densities andγ-strength functions in148,149Sm Physical Review C ·S. Siem, M. Guttormsen, K. Ingeberg, E. Melby, J. Rekstad, A. Schiller, A. Voinov	2002	46
17	Nuclear level densities and γ-ray strength functions inSc44,45 Physical Review C ·A. C. Larsen, M. Guttormsen, R. Chankova, F. Ingebretsen, T. Lönnroth, S. Messelt, J. Rekstad, A. Schiller, S. Siem, N. U. H. Syed, A. Voinov	2007	46
18	Validity of the Generalized Brink-Axel Hypothesis inNp238 Physical Review Letters ·M. Guttormsen, A. C. Larsen, A. Görgen, T. Renstrøm, S. Siem, T. Tornyi, G. M. Tveten	2016	45
19	Constant-temperature level densities in the quasicontinuum of Th and U isotopes Physical Review C ·M. Guttormsen, B. Jurado, J. N. Wilson, M. Aïche, L. A. Bernstein, Q. Ducasse, F. Giacoppo, A. Görgen, F. Gunsing, T. W. Hagen, A. C. Larsen, M. Lebois, B. Leniau, T. Renstrøm, S. J. Rose, S. Siem, T. G. Tornyi, G. M. Tveten, M. Wiedeking	2013	45
20	Level densities andγ-ray strength functions inYb170,171,172 Physical Review C ·U. Agvaanluvsan, A. Schiller, J. A. Becker, L. A. Bernstein, P. E. Garrett, M. Guttormsen, G. E. Mitchell, J. Rekstad, S. Siem, A. Voinov, W. Younes	2004	43

About S. Siem

S. Siem is a scholar working on Nuclear and High Energy Physics, Radiation, Atomic and Molecular Physics, and Optics, Aerospace Engineering and Spectroscopy, having authored 136 papers that have together received 2.7k indexed citations. Recurring topics across this work include Nuclear physics research studies (122 papers), Astronomical and nuclear sciences (53 papers), Nuclear Physics and Applications (43 papers), Nuclear reactor physics and engineering (32 papers), Quantum Chromodynamics and Particle Interactions (24 papers), Atomic and Molecular Physics (18 papers), Advanced Chemical Physics Studies (16 papers) and Advanced NMR Techniques and Applications (12 papers). The work is most often cited by research in Nuclear and High Energy Physics (2.5k citations), Radiation (957 citations), Aerospace Engineering (705 citations), Atomic and Molecular Physics, and Optics (838 citations) and Condensed Matter Physics (211 citations). S. Siem has collaborated with scholars based in Norway, United States and South Africa. Frequent co-authors include M. Guttormsen, A. Schiller, J. Rekstad, A. Voinov, A. C. Larsen, E. Melby, A. Görgen, G. M. Tveten, R. Chankova and M. Hjorth‐Jensen. Their work appears in journals such as Physical review. C, Physical Review Letters, Nuclear Instruments and Methods in Physics Research Section A Accelerators Spectrometers Detectors and Associated Equipment, The European Physical Journal A and Nuclear Physics A.

Rankless uses publication and citation data sourced from OpenAlex, an open and comprehensive bibliographic database. While OpenAlex provides broad and valuable coverage of the global research landscape, it—like all bibliographic datasets—has inherent limitations. These include incomplete records, variations in author disambiguation, differences in journal indexing, and delays in data updates. As a result, some metrics and network relationships displayed in Rankless may not fully capture the entirety of a scholar's output or impact.

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S. Siem

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