Unto Tapper

9.3k total citations · 1 hit paper
109 papers, 6.8k citations indexed

About

Unto Tapper is a scholar working on Materials Chemistry, Radiation and Biomedical Engineering. According to data from OpenAlex, Unto Tapper has authored 109 papers receiving a total of 6.8k indexed citations (citations by other indexed papers that have themselves been cited), including 33 papers in Materials Chemistry, 25 papers in Radiation and 21 papers in Biomedical Engineering. Recurrent topics in Unto Tapper's work include Nuclear Physics and Applications (20 papers), X-ray Spectroscopy and Fluorescence Analysis (14 papers) and Electron and X-Ray Spectroscopy Techniques (13 papers). Unto Tapper is often cited by papers focused on Nuclear Physics and Applications (20 papers), X-ray Spectroscopy and Fluorescence Analysis (14 papers) and Electron and X-Ray Spectroscopy Techniques (13 papers). Unto Tapper collaborates with scholars based in Finland, Sweden and South Africa. Unto Tapper's co-authors include Pentti Paatero, Jorma Jokiniemi, Esko I. Kauppinen, Olli Järvinen, Pia Anttila, Jari Vartiainen, Klas Malmqvist, Teemu Kärkelä, Jussi Lyyränen and Petri Ahonen and has published in prestigious journals such as Journal of Geophysical Research Atmospheres, Applied Physics Letters and Analytical Chemistry.

In The Last Decade

Unto Tapper

103 papers receiving 6.5k citations

Hit Papers

align trajectories

What are hit papers?

Hit papers significantly outperform the citation benchmark for their cohort. A paper qualifies if it has ≥500 total citations, achieves ≥1.5× the top-1% citation threshold for papers in the same subfield and year (this is the minimum needed to enter the top 1%, not the average within it), or reaches the top citation threshold in at least one of its specific research topics.

Positive matrix factorization: A non‐negative factor model with optimal utilization of error estimates of data values

1994 4.3k citations Pentti Paatero, Unto Tapper Environmetrics profile →

Peers — A (Enhanced Table)

Peers by citation overlap · career bar shows stage (early→late) cites · hero ref

Name	h						Papers	Cites
Unto Tapper Finland	25	3.0k	2.8k	1.2k	743	736	109	6.8k
Qi Chen China	39	2.3k 0.8×	2.4k 0.9×	789 0.7×	342 0.5×	853 1.2×	160	6.0k
Jianguo Liu China	41	1.9k 0.6×	3.1k 1.1×	1.3k 1.1×	226 0.3×	2.1k 2.8×	641	7.4k
Yuxuan Wang China	57	3.7k 1.2×	5.4k 2.0×	1.6k 1.4×	914 1.2×	3.3k 4.5×	336	10.7k
An Li China	57	4.2k 1.4×	973 0.4×	356 0.3×	264 0.4×	452 0.6×	566	11.4k
Xiaoliang Wang China	41	2.8k 0.9×	2.4k 0.9×	1.0k 0.9×	1.3k 1.7×	1.0k 1.4×	225	5.7k
Yanli Zhang China	47	3.0k 1.0×	2.9k 1.1×	1.4k 1.2×	1.1k 1.5×	694 0.9×	453	8.5k
Pentti Paatero Finland	36	8.8k 2.9×	7.9k 2.9×	4.0k 3.5×	2.3k 3.1×	1.7k 2.3×	74	13.2k
David C. Green United Kingdom	39	2.8k 0.9×	1.1k 0.4×	980 0.8×	1.1k 1.5×	503 0.7×	183	5.2k
Lin Wang China	49	4.2k 1.4×	5.1k 1.8×	1.5k 1.3×	591 0.8×	2.1k 2.8×	269	8.8k
Jia‐Xin Yin China	38	2.4k 0.8×	1.7k 0.6×	804 0.7×	927 1.2×	451 0.6×	140	6.7k

Countries citing papers authored by Unto Tapper

Since Specialization

Citations

This map shows the geographic impact of Unto Tapper'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 Unto Tapper with the expected number of citations based on a country's size and research output (numbers larger than one mean the country cites Unto Tapper more than expected).

Fields of papers citing papers by Unto Tapper

Since Specialization

Physical SciencesHealth SciencesLife SciencesSocial Sciences

This network shows the impact of papers produced by Unto Tapper. 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 Unto Tapper. The network helps show where Unto Tapper may publish in the future.

Co-authorship network of co-authors of Unto Tapper

This figure shows the co-authorship network connecting the top 25 collaborators of Unto Tapper. A scholar is included among the top collaborators of Unto Tapper based on the total number of citations received by their joint publications. Widths of edges represent the number of papers authors have co-authored together. Node borders signify the number of papers an author published with Unto Tapper. Unto Tapper is excluded from the visualization to improve readability, since they are connected to all nodes in the network.

All Works

Sort: Min cites: Since: Top N: Style:

20 of 20 papers shown

Kärkelä, Teemu, et al.. (2021). Comparison of 3R4F cigarette smoke and IQOS heated tobacco product aerosol emissions. Environmental Science and Pollution Research. 29(18). 27051–27069. 30 indexed citations

Hafshejani, Laleh Divband, Hanna Koponen, Joakim Riikonen, et al.. (2016). Synthesis and characterization of Al2O3 nanoparticles by flame spray pyrolysis (FSP) — Role of Fe ions in the precursor. Powder Technology. 298. 42–49. 32 indexed citations

Jalava, Pasi, Heikki Lamberg, Maija Tapanainen, et al.. (2013). Comparison of emissions and toxicological properties of fine particles from wood and oil boilers in small (20–25 kW) and medium (5–10 MW) scale. Atmospheric Environment. 77. 193–201. 65 indexed citations

Miettinen, Mirella, Jouni Hokkinen, Tommi Karhunen, et al.. (2013). Synthesis of novel carbon nanostructures by annealing of silicon-carbon nanoparticles at atmospheric pressure. Journal of Nanoparticle Research. 16(1). 13 indexed citations

Vartiainen, Jari, Tekla Tammelin, Mikko Tuominen, et al.. (2011). Nanocomposite packaging materials from polysaccharides and montmorillonite. Italian Journal of Food Science. 23. 77–79. 1 indexed citations

Auvinen, Ari, et al.. (2011). Development of Conductive Carbon Coated Copper Nanoparticle Inkjet Fluid. Technical programs and proceedings. 27(1). 458–461. 2 indexed citations

Vartiainen, Jari, Tiina Pöhler, Lea Pylkkänen, et al.. (2011). HEALTH AND ENVIRONMENTAL SAFETY ASPECTS OF NANOFIBRILLATED CELLULOSE. 207–211. 1 indexed citations

Peiponen∥, Kai-Erik, et al.. (2002). Effective refractive index of calcium carbonate pigment slurries by a surface-plasmon-resonance sensor. Dyes and Pigments. 52(1). 15–21. 6 indexed citations

Peiponen∥, Kai-Erik, Jukka Räty, Olivier Richard, et al.. (2000). Reflectance Study of Pigment Slurries. Applied Spectroscopy. 54(6). 878–884. 9 indexed citations

10.

Joutsensaari, Jorma, Petri Ahonen, Unto Tapper, et al.. (1999). Aerosol synthesis of nanostructured, ultrafine fullerene particles. Tampere University Institutional Repository (Tampere University). 3 indexed citations

11.

Roschier, Leif, Jari Penttilä, Pertti Hakonen, et al.. (1999). Single-electron transistor made of multiwalled carbon nanotube using scanning probe manipulation. Applied Physics Letters. 75(5). 728–730. 74 indexed citations

12.

Richardson, Keith, et al.. (1999). Development of high pressure deuterium gas targets for the generation of intense mono-energetic fast neutron beams. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 152(4). 515–526. 11 indexed citations

13.

McMurray, William, et al.. (1998). Characterisation of neutron and gamma-ray emission from thick target Be(p,n) reaction for boron neutron capture therapy. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 139(1-4). 471–475. 8 indexed citations

14.

Vuorinen, Heikki S., et al.. (1996). Trace and heavy metal analyses of a skeletal population representing the town people in Turku (Åbo), Finland in the 16th–17th centuries: with special reference to gender, age and social background. The Science of The Total Environment. 177(1-3). 145–160. 28 indexed citations

15.

Paatero, Pentti & Unto Tapper. (1994). Positive matrix factorization: A non‐negative factor model with optimal utilization of error estimates of data values. Environmetrics. 5(2). 111–126. 4288 indexed citations breakdown →

16.

Tapper, Unto & Klas Malmqvist. (1991). Analysis, imaging, and modification of microscopic specimens with accelerator beams. Analytical Chemistry. 63(14). 715A–725A. 11 indexed citations

17.

Pinheiro, Teresa, et al.. (1991). Experimental investigations into sample preparation of Alzheimer tissue specimens for nuclear microprobe analysis. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 54(1-3). 186–190. 2 indexed citations

18.

Tapper, Unto, et al.. (1991). Pattern recognition by the use of multivariate statistical evaluation of macro- and micro-PIXE results. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 54(1-3). 191–196. 4 indexed citations

19.

Maeder, Philippe, et al.. (1990). Colloid cysts of the third ventricle: correlation of MR and CT findings with histology and chemical analysis.. American Journal of Roentgenology. 155(1). 135–141. 37 indexed citations

20.

Tapper, Unto, Ragnar Hellborg, & Klas Malmqvist. (1988). Enhanced beam quality for proton microprobes using ultrathin stripper foils in tandem accelerators. Nuclear Instruments and Methods in Physics Research Section B Beam Interactions with Materials and Atoms. 34(3). 407–410. 13 indexed citations

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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