Kyoto University Research Reactor Institute

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Short name

KURRI

Country, city

Japan, Osaka

05qs31q25

Organization website

Publications

3 516

Citations

58 093

h-index

Top-3 journals

Journal of Nuclear Science and Technology (157 publications)

Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment (152 publications)

Journal of the Physical Society of Japan (145 publications)

Top-3 organizations

Kyoto University (647 publications)

Japan Atomic Energy Agency (442 publications)

Osaka University (265 publications)

Top-3 foreign organizations

Purdue University (55 publications)

Institut Laue-Langevin (34 publications)

Argonne National Laboratory (25 publications)

Most cited in 5 years

Found

Publication title

Publisher

Journal

Countries

Found

Since 1915

Total publications

3516

Total citations

58093

Citations per publication

16.52

Average publications per year

31.68

Average authors per publication

6.15

h-index

Metrics description

h-index

A scientist has an h-index if h of his N publications are cited at least h times each, while the remaining (N - h) publications are cited no more than h times each.

https://www.pnas.org/doi/full/10.1073/pnas.0507655102

Top-30

Fields of science

	100 200 300 400 500 600 700
Nuclear and High Energy Physics	Nuclear and High Energy Physics, 695, 19.77% Nuclear and High Energy Physics 695 publications, 19.77%
Nuclear Energy and Engineering	Nuclear Energy and Engineering, 590, 16.78% Nuclear Energy and Engineering 590 publications, 16.78%
Condensed Matter Physics	Condensed Matter Physics, 567, 16.13% Condensed Matter Physics 567 publications, 16.13%
General Physics and Astronomy	General Physics and Astronomy, 390, 11.09% General Physics and Astronomy 390 publications, 11.09%
General Materials Science	General Materials Science, 307, 8.73% General Materials Science 307 publications, 8.73%
Radiology, Nuclear Medicine and imaging	Radiology, Nuclear Medicine and imaging, 303, 8.62% Radiology, Nuclear Medicine and imaging 303 publications, 8.62%
General Medicine	General Medicine, 296, 8.42% General Medicine 296 publications, 8.42%
Electronic, Optical and Magnetic Materials	Electronic, Optical and Magnetic Materials, 268, 7.62% Electronic, Optical and Magnetic Materials 268 publications, 7.62%
Instrumentation	Instrumentation, 250, 7.11% Instrumentation 250 publications, 7.11%
Health, Toxicology and Mutagenesis	Health, Toxicology and Mutagenesis, 248, 7.05% Health, Toxicology and Mutagenesis 248 publications, 7.05%
Radiation	Radiation, 247, 7.03% Radiation 247 publications, 7.03%
Mechanical Engineering	Mechanical Engineering, 221, 6.29% Mechanical Engineering 221 publications, 6.29%
Materials Chemistry	Materials Chemistry, 190, 5.4% Materials Chemistry 190 publications, 5.4%
Physical and Theoretical Chemistry	Physical and Theoretical Chemistry, 182, 5.18% Physical and Theoretical Chemistry 182 publications, 5.18%
Biochemistry	Biochemistry, 162, 4.61% Biochemistry 162 publications, 4.61%
Analytical Chemistry	Analytical Chemistry, 162, 4.61% Analytical Chemistry 162 publications, 4.61%
General Chemistry	General Chemistry, 146, 4.15% General Chemistry 146 publications, 4.15%
Pollution	Pollution, 146, 4.15% Pollution 146 publications, 4.15%
Electrical and Electronic Engineering	Electrical and Electronic Engineering, 143, 4.07% Electrical and Electronic Engineering 143 publications, 4.07%
Oncology	Oncology, 132, 3.75% Oncology 132 publications, 3.75%
Spectroscopy	Spectroscopy, 129, 3.67% Spectroscopy 129 publications, 3.67%
Mechanics of Materials	Mechanics of Materials, 127, 3.61% Mechanics of Materials 127 publications, 3.61%
General Engineering	General Engineering, 124, 3.53% General Engineering 124 publications, 3.53%
Public Health, Environmental and Occupational Health	Public Health, Environmental and Occupational Health, 121, 3.44% Public Health, Environmental and Occupational Health 121 publications, 3.44%
Cancer Research	Cancer Research, 117, 3.33% Cancer Research 117 publications, 3.33%
Molecular Biology	Molecular Biology, 104, 2.96% Molecular Biology 104 publications, 2.96%
Metals and Alloys	Metals and Alloys, 95, 2.7% Metals and Alloys 95 publications, 2.7%
Atomic and Molecular Physics, and Optics	Atomic and Molecular Physics, and Optics, 85, 2.42% Atomic and Molecular Physics, and Optics 85 publications, 2.42%
Biophysics	Biophysics, 75, 2.13% Biophysics 75 publications, 2.13%
Fluid Flow and Transfer Processes	Fluid Flow and Transfer Processes, 67, 1.91% Fluid Flow and Transfer Processes 67 publications, 1.91%
	100 200 300 400 500 600 700

Journals

	20 40 60 80 100 120 140 160
Journal of Nuclear Science and Technology	Journal of Nuclear Science and Technology, 157, 4.47% Journal of Nuclear Science and Technology 157 publications, 4.47%
Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, 152, 4.32% Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment 152 publications, 4.32%
Journal of the Physical Society of Japan	Journal of the Physical Society of Japan, 145, 4.12% Journal of the Physical Society of Japan 145 publications, 4.12%
Journal of Nuclear Materials	Journal of Nuclear Materials, 121, 3.44% Journal of Nuclear Materials 121 publications, 3.44%
Physica B: Condensed Matter	Physica B: Condensed Matter, 114, 3.24% Physica B: Condensed Matter 114 publications, 3.24%
Journal of Radioanalytical and Nuclear Chemistry	Journal of Radioanalytical and Nuclear Chemistry, 104, 2.96% Journal of Radioanalytical and Nuclear Chemistry 104 publications, 2.96%
Japanese Journal of Health Physics	Japanese Journal of Health Physics, 81, 2.3% Japanese Journal of Health Physics 81 publications, 2.3%
Applied Radiation and Isotopes	Applied Radiation and Isotopes, 74, 2.1% Applied Radiation and Isotopes 74 publications, 2.1%
Journal of Radiation Research	Journal of Radiation Research, 66, 1.88% Journal of Radiation Research 66 publications, 1.88%
Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms	Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms, 61, 1.73% Nuclear Instruments and Methods in Physics Research, Section B: Beam Interactions with Materials and Atoms 61 publications, 1.73%
Hyperfine Interactions	Hyperfine Interactions, 59, 1.68% Hyperfine Interactions 59 publications, 1.68%
Annals of Nuclear Energy	Annals of Nuclear Energy, 55, 1.56% Annals of Nuclear Energy 55 publications, 1.56%
Journal of Physics: Conference Series	Journal of Physics: Conference Series, 48, 1.37% Journal of Physics: Conference Series 48 publications, 1.37%
Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes	Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes, 42, 1.19% Japanese Journal of Applied Physics, Part 1: Regular Papers & Short Notes 42 publications, 1.19%
Physical Review B	Physical Review B, 42, 1.19% Physical Review B 42 publications, 1.19%
Journal of Alloys and Compounds	Journal of Alloys and Compounds, 40, 1.14% Journal of Alloys and Compounds 40 publications, 1.14%
International Journal of Heat and Mass Transfer	International Journal of Heat and Mass Transfer, 34, 0.97% International Journal of Heat and Mass Transfer 34 publications, 0.97%
International Journal of Radiation Oncology Biology Physics	International Journal of Radiation Oncology Biology Physics, 33, 0.94% International Journal of Radiation Oncology Biology Physics 33 publications, 0.94%
Journal of Applied Physics	Journal of Applied Physics, 31, 0.88% Journal of Applied Physics 31 publications, 0.88%
Nuclear Science and Engineering	Nuclear Science and Engineering, 28, 0.8% Nuclear Science and Engineering 28 publications, 0.8%
Journal of Magnetism and Magnetic Materials	Journal of Magnetism and Magnetic Materials, 27, 0.77% Journal of Magnetism and Magnetic Materials 27 publications, 0.77%
Journal of Chemical Physics	Journal of Chemical Physics, 26, 0.74% Journal of Chemical Physics 26 publications, 0.74%
Materials Transactions	Materials Transactions, 26, 0.74% Materials Transactions 26 publications, 0.74%
EPJ Web of Conferences	EPJ Web of Conferences, 25, 0.71% EPJ Web of Conferences 25 publications, 0.71%
Biochemical and Biophysical Research Communications	Biochemical and Biophysical Research Communications, 23, 0.65% Biochemical and Biophysical Research Communications 23 publications, 0.65%
Journal of Non-Crystalline Solids	Journal of Non-Crystalline Solids, 23, 0.65% Journal of Non-Crystalline Solids 23 publications, 0.65%
Journal of Physics and Chemistry of Solids	Journal of Physics and Chemistry of Solids, 23, 0.65% Journal of Physics and Chemistry of Solids 23 publications, 0.65%
Fusion Engineering and Design	Fusion Engineering and Design, 23, 0.65% Fusion Engineering and Design 23 publications, 0.65%
hamon	hamon, 23, 0.65% hamon 23 publications, 0.65%
Nuclear Technology	Nuclear Technology, 22, 0.63% Nuclear Technology 22 publications, 0.63%
	20 40 60 80 100 120 140 160

Publishers

	200 400 600 800 1000 1200 1400
Elsevier	Elsevier, 1386, 39.42% Elsevier 1386 publications, 39.42%
Springer Nature	Springer Nature, 407, 11.58% Springer Nature 407 publications, 11.58%
Taylor & Francis	Taylor & Francis, 301, 8.56% Taylor & Francis 301 publications, 8.56%
Physical Society of Japan	Physical Society of Japan, 146, 4.15% Physical Society of Japan 146 publications, 4.15%
Wiley	Wiley, 132, 3.75% Wiley 132 publications, 3.75%
Oxford University Press	Oxford University Press, 120, 3.41% Oxford University Press 120 publications, 3.41%
American Physical Society (APS)	American Physical Society (APS), 91, 2.59% American Physical Society (APS) 91 publications, 2.59%
AIP Publishing	AIP Publishing, 85, 2.42% AIP Publishing 85 publications, 2.42%
Japan Health Physics Society	Japan Health Physics Society, 81, 2.3% Japan Health Physics Society 81 publications, 2.3%
IOP Publishing	IOP Publishing, 79, 2.25% IOP Publishing 79 publications, 2.25%
American Chemical Society (ACS)	American Chemical Society (ACS), 63, 1.79% American Chemical Society (ACS) 63 publications, 1.79%
Japan Institute of Metals	Japan Institute of Metals, 50, 1.42% Japan Institute of Metals 50 publications, 1.42%
EDP Sciences	EDP Sciences, 44, 1.25% EDP Sciences 44 publications, 1.25%
Japan Society of Applied Physics	Japan Society of Applied Physics, 44, 1.25% Japan Society of Applied Physics 44 publications, 1.25%
Japan Society of Mechanical Engineers	Japan Society of Mechanical Engineers, 39, 1.11% Japan Society of Mechanical Engineers 39 publications, 1.11%
Walter de Gruyter	Walter de Gruyter, 37, 1.05% Walter de Gruyter 37 publications, 1.05%
The Japanese Society for Neutron Science	The Japanese Society for Neutron Science, 23, 0.65% The Japanese Society for Neutron Science 23 publications, 0.65%
Atomic Energy Society of Japan	Atomic Energy Society of Japan, 22, 0.63% Atomic Energy Society of Japan 22 publications, 0.63%
International Union of Crystallography (IUCr)	International Union of Crystallography (IUCr), 21, 0.6% International Union of Crystallography (IUCr) 21 publications, 0.6%
Royal Society of Chemistry (RSC)	Royal Society of Chemistry (RSC), 19, 0.54% Royal Society of Chemistry (RSC) 19 publications, 0.54%
Japan Radioisotope Association	Japan Radioisotope Association, 19, 0.54% Japan Radioisotope Association 19 publications, 0.54%
Society of Chemical Engineers, Japan	Society of Chemical Engineers, Japan, 18, 0.51% Society of Chemical Engineers, Japan 18 publications, 0.51%
Institute of Electrical and Electronics Engineers (IEEE)	Institute of Electrical and Electronics Engineers (IEEE), 17, 0.48% Institute of Electrical and Electronics Engineers (IEEE) 17 publications, 0.48%
Japan Society for Analytical Chemistry	Japan Society for Analytical Chemistry, 13, 0.37% Japan Society for Analytical Chemistry 13 publications, 0.37%
Ovid Technologies (Wolters Kluwer Health)	Ovid Technologies (Wolters Kluwer Health), 11, 0.31% Ovid Technologies (Wolters Kluwer Health) 11 publications, 0.31%
The Crystallographic Society of Japan	The Crystallographic Society of Japan, 11, 0.31% The Crystallographic Society of Japan 11 publications, 0.31%
World Scientific	World Scientific, 10, 0.28% World Scientific 10 publications, 0.28%
Biophysical Society of Japan	Biophysical Society of Japan, 10, 0.28% Biophysical Society of Japan 10 publications, 0.28%
Public Library of Science (PLoS)	Public Library of Science (PLoS), 9, 0.26% Public Library of Science (PLoS) 9 publications, 0.26%
Architectural Institute of Japan	Architectural Institute of Japan, 9, 0.26% Architectural Institute of Japan 9 publications, 0.26%
	200 400 600 800 1000 1200 1400

With other organizations

	100 200 300 400 500 600 700
Kyoto University	Kyoto University, 647, 18.4% Kyoto University 647 publications, 18.4%
Japan Atomic Energy Agency	Japan Atomic Energy Agency, 442, 12.57% Japan Atomic Energy Agency 442 publications, 12.57%
Osaka University	Osaka University, 265, 7.54% Osaka University 265 publications, 7.54%
High Energy Accelerator Research Organization	High Energy Accelerator Research Organization, 215, 6.11% High Energy Accelerator Research Organization 215 publications, 6.11%
Tohoku University	Tohoku University, 195, 5.55% Tohoku University 195 publications, 5.55%
Kyushu University	Kyushu University, 167, 4.75% Kyushu University 167 publications, 4.75%
Nagoya University	Nagoya University, 166, 4.72% Nagoya University 166 publications, 4.72%
University of Tokyo	University of Tokyo, 155, 4.41% University of Tokyo 155 publications, 4.41%
Hiroshima University	Hiroshima University, 129, 3.67% Hiroshima University 129 publications, 3.67%
Tokyo Institute of Technology	Tokyo Institute of Technology, 115, 3.27% Tokyo Institute of Technology 115 publications, 3.27%
Japan Synchrotron Radiation Research Institute	Japan Synchrotron Radiation Research Institute, 108, 3.07% Japan Synchrotron Radiation Research Institute 108 publications, 3.07%
Hokkaido University	Hokkaido University, 104, 2.96% Hokkaido University 104 publications, 2.96%
RIKEN-Institute of Physical and Chemical Research	RIKEN-Institute of Physical and Chemical Research, 103, 2.93% RIKEN-Institute of Physical and Chemical Research 103 publications, 2.93%
National Institutes for Quantum Science and Technology	National Institutes for Quantum Science and Technology, 88, 2.5% National Institutes for Quantum Science and Technology 88 publications, 2.5%
National Institute of Advanced Industrial Science and Technology	National Institute of Advanced Industrial Science and Technology, 70, 1.99% National Institute of Advanced Industrial Science and Technology 70 publications, 1.99%
University of Tsukuba	University of Tsukuba, 64, 1.82% University of Tsukuba 64 publications, 1.82%
Ibaraki University	Ibaraki University, 62, 1.76% Ibaraki University 62 publications, 1.76%
Kobe University	Kobe University, 61, 1.73% Kobe University 61 publications, 1.73%
Kanazawa University	Kanazawa University, 60, 1.71% Kanazawa University 60 publications, 1.71%
Osaka Metropolitan University	Osaka Metropolitan University, 56, 1.59% Osaka Metropolitan University 56 publications, 1.59%
Purdue University	Purdue University, 55, 1.56% Purdue University 55 publications, 1.56%
Japan Science and Technology Agency	Japan Science and Technology Agency, 53, 1.51% Japan Science and Technology Agency 53 publications, 1.51%
Osaka Medical and Pharmaceutical University	Osaka Medical and Pharmaceutical University, 47, 1.34% Osaka Medical and Pharmaceutical University 47 publications, 1.34%
Niigata University	Niigata University, 44, 1.25% Niigata University 44 publications, 1.25%
Tokyo Metropolitan University	Tokyo Metropolitan University, 39, 1.11% Tokyo Metropolitan University 39 publications, 1.11%
The Graduate University for Advanced Studies	The Graduate University for Advanced Studies, 37, 1.05% The Graduate University for Advanced Studies 37 publications, 1.05%
Institut Laue-Langevin	Institut Laue-Langevin, 34, 0.97% Institut Laue-Langevin 34 publications, 0.97%
Tottori University	Tottori University, 31, 0.88% Tottori University 31 publications, 0.88%
Yamaguchi University	Yamaguchi University, 31, 0.88% Yamaguchi University 31 publications, 0.88%
University of Fukui	University of Fukui, 29, 0.82% University of Fukui 29 publications, 0.82%
	100 200 300 400 500 600 700

With foreign organizations

	10 20 30 40 50 60
Purdue University	Purdue University, 55, 1.56% Purdue University 55 publications, 1.56%
Institut Laue-Langevin	Institut Laue-Langevin, 34, 0.97% Institut Laue-Langevin 34 publications, 0.97%
Argonne National Laboratory	Argonne National Laboratory, 25, 0.71% Argonne National Laboratory 25 publications, 0.71%
Hefei University of Technology	Hefei University of Technology, 24, 0.68% Hefei University of Technology 24 publications, 0.68%
École Normale Supérieure de Lyon	École Normale Supérieure de Lyon, 16, 0.46% École Normale Supérieure de Lyon 16 publications, 0.46%
Fermi National Accelerator Laboratory	Fermi National Accelerator Laboratory, 14, 0.4% Fermi National Accelerator Laboratory 14 publications, 0.4%
Korea Atomic Energy Research Institute	Korea Atomic Energy Research Institute, 14, 0.4% Korea Atomic Energy Research Institute 14 publications, 0.4%
Karlsruhe Institute of Technology	Karlsruhe Institute of Technology, 12, 0.34% Karlsruhe Institute of Technology 12 publications, 0.34%
Australian Nuclear Science & Technology Organisation	Australian Nuclear Science & Technology Organisation, 12, 0.34% Australian Nuclear Science & Technology Organisation 12 publications, 0.34%
Washington University in St. Louis	Washington University in St. Louis, 12, 0.34% Washington University in St. Louis 12 publications, 0.34%
Paul Scherrer Institute	Paul Scherrer Institute, 11, 0.31% Paul Scherrer Institute 11 publications, 0.31%
Stanford University	Stanford University, 11, 0.31% Stanford University 11 publications, 0.31%
Institute of High Energy Physics, Chinese Academy of Sciences	Institute of High Energy Physics, Chinese Academy of Sciences, 11, 0.31% Institute of High Energy Physics, Chinese Academy of Sciences 11 publications, 0.31%
Joint Institute for Nuclear Research	Joint Institute for Nuclear Research, 9, 0.26% Joint Institute for Nuclear Research 9 publications, 0.26%
Fudan University	Fudan University, 9, 0.26% Fudan University 9 publications, 0.26%
University of Manchester	University of Manchester, 9, 0.26% University of Manchester 9 publications, 0.26%
Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences	Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences, 9, 0.26% Institute for Nuclear Research and Nuclear Energy, Bulgarian Academy of Sciences 9 publications, 0.26%
Australian National University	Australian National University, 8, 0.23% Australian National University 8 publications, 0.23%
European Organization for Nuclear Research	European Organization for Nuclear Research, 8, 0.23% European Organization for Nuclear Research 8 publications, 0.23%
Oak Ridge National Laboratory	Oak Ridge National Laboratory, 8, 0.23% Oak Ridge National Laboratory 8 publications, 0.23%
Helmholtz Zentrum München	Helmholtz Zentrum München, 8, 0.23% Helmholtz Zentrum München 8 publications, 0.23%
Saarland University	Saarland University, 8, 0.23% Saarland University 8 publications, 0.23%
University of Shanghai for Science and Technology	University of Shanghai for Science and Technology, 7, 0.2% University of Shanghai for Science and Technology 7 publications, 0.2%
SLAC National Accelerator Laboratory	SLAC National Accelerator Laboratory, 7, 0.2% SLAC National Accelerator Laboratory 7 publications, 0.2%
Rensselaer Polytechnic Institute	Rensselaer Polytechnic Institute, 7, 0.2% Rensselaer Polytechnic Institute 7 publications, 0.2%
Rutherford Appleton Laboratory	Rutherford Appleton Laboratory, 7, 0.2% Rutherford Appleton Laboratory 7 publications, 0.2%
University of Minnesota	University of Minnesota, 7, 0.2% University of Minnesota 7 publications, 0.2%
University of Leeds	University of Leeds, 7, 0.2% University of Leeds 7 publications, 0.2%
Diamond Light Source	Diamond Light Source, 7, 0.2% Diamond Light Source 7 publications, 0.2%
National Research Council Canada	National Research Council Canada, 7, 0.2% National Research Council Canada 7 publications, 0.2%
	10 20 30 40 50 60

With other countries

	50 100 150 200 250
USA	USA, 213, 6.06% USA 213 publications, 6.06%
China	China, 86, 2.45% China 86 publications, 2.45%
France	France, 76, 2.16% France 76 publications, 2.16%
Germany	Germany, 64, 1.82% Germany 64 publications, 1.82%
Republic of Korea	Republic of Korea, 57, 1.62% Republic of Korea 57 publications, 1.62%
United Kingdom	United Kingdom, 42, 1.19% United Kingdom 42 publications, 1.19%
Australia	Australia, 25, 0.71% Australia 25 publications, 0.71%
Switzerland	Switzerland, 25, 0.71% Switzerland 25 publications, 0.71%
Canada	Canada, 21, 0.6% Canada 21 publications, 0.6%
Russia	Russia, 17, 0.48% Russia 17 publications, 0.48%
Bulgaria	Bulgaria, 11, 0.31% Bulgaria 11 publications, 0.31%
India	India, 11, 0.31% India 11 publications, 0.31%
Belgium	Belgium, 10, 0.28% Belgium 10 publications, 0.28%
Denmark	Denmark, 9, 0.26% Denmark 9 publications, 0.26%
Italy	Italy, 8, 0.23% Italy 8 publications, 0.23%
New Zealand	New Zealand, 7, 0.2% New Zealand 7 publications, 0.2%
Sweden	Sweden, 7, 0.2% Sweden 7 publications, 0.2%
Austria	Austria, 6, 0.17% Austria 6 publications, 0.17%
Iraq	Iraq, 6, 0.17% Iraq 6 publications, 0.17%
Czech Republic	Czech Republic, 6, 0.17% Czech Republic 6 publications, 0.17%
Kazakhstan	Kazakhstan, 5, 0.14% Kazakhstan 5 publications, 0.14%
Vietnam	Vietnam, 5, 0.14% Vietnam 5 publications, 0.14%
Indonesia	Indonesia, 5, 0.14% Indonesia 5 publications, 0.14%
Nepal	Nepal, 4, 0.11% Nepal 4 publications, 0.11%
Netherlands	Netherlands, 4, 0.11% Netherlands 4 publications, 0.11%
Slovenia	Slovenia, 4, 0.11% Slovenia 4 publications, 0.11%
Egypt	Egypt, 3, 0.09% Egypt 3 publications, 0.09%
Spain	Spain, 3, 0.09% Spain 3 publications, 0.09%
Poland	Poland, 3, 0.09% Poland 3 publications, 0.09%
	50 100 150 200 250

We do not take into account publications without a DOI.
Statistics recalculated daily.
Publications published earlier than 1915 are ignored in the statistics.
The horizontal charts show the 30 top positions.
Journals quartiles values are relevant at the moment.