Muon and positron interactions and applications
Muon and positron interactions and applications is a research topic within Mechanics of Materials. Science Explorer counts 15k research works in it since 1950. 10.1% of them reached the world's top 10% most cited for their field and year.
This cluster of papers focuses on the use of positron annihilation spectroscopy to identify defects in semiconductors, porous materials, and polymers. It includes experimental and theoretical studies on topics such as annihilation lifetime, free volume, nanostructures, and the application of muons in defect characterization.
- Positron Annihilation
- Defect Identification
- Semiconductors
- Porous Materials
- Annihilation Lifetime
- Free Volume
- Nanostructures
- Polymers
- Muons
- Spectroscopy
- Research works
- 15k fractional, since 1950
- In the world top 10%
- 1.6k per year above
- Top-10% rate
- 10.1% share of its works in the world top 10%
- Growth, 2018-21 → 2022-25
- -3% the tick is no change
- Largest producer
China
26% of the 10 largest, 2022-now
Which countries lead Muon and positron interactions and applications research?
By volume, China and the United States publish the most (239 and 180 works in 2022-now).
By volume, 2022-now
- 1
China
239 works
- 2
United States
180 works
- 3
Japan
131 works
- 4
Russia
70 works
- 5
Germany
68 works
- 6
Italy
66 works
- 7
India
56 works
- 8
United Kingdom
46 works
- 9
France
36 works
- 10
Switzerland
34 works
How concentrated that is
The same countries as shares of everything the list above accounts for. A node where two countries do two thirds of the work and one spread evenly across twelve read alike as a ranking and not at all alike here.
Shares of the rows listed above, not of the whole node.
Which institutions lead Muon and positron interactions and applications research?
By volume in 2022-now, Chinese Academy of Sciences publishes the most Muon and positron interactions and applications research, followed by Russian Academy of Sciences and Centre National de la Recherche Scientifique.
By volume, 2022-now
- 1
Chinese Academy of SciencesChina
40 works
- 2
Russian Academy of SciencesRussia
23 works
- 3
Centre National de la Recherche ScientifiqueFrance
18 works
- 4
Fermi National Accelerator LaboratoryUnited States
18 works
- 5
Helmholtz Association of German Research CentresGermany
17 works
- 6
High Energy Accelerator Research OrganizationJapan
15 works
- 7
University of Science and Technology of ChinaChina
14 works
- 8
Paul Scherrer InstituteSwitzerland
11 works
- 9
Japan Atomic Energy AgencyJapan
11 works
- 10
Istituto Nazionale di Fisica NucleareItaly
10 works
Who are the leading researchers in Muon and positron interactions and applications?
The most-cited researchers publishing on Muon and positron interactions and applications include M. Weber, Jens K. Nørskov and Xiaogang Wang.
- 1
M. Weber
Israel
267k citations
- 2
Jens K. Nørskov
Denmark
260k citations
- 3
Xiaogang Wang
China
260k citations
- 4
Kenji Watanabe
Japan
237k citations
- 5
P. Jackson
France
230k citations
- 6
Donald G. Truhlar
United States
230k citations
- 7
Takashi Taniguchi
Japan
227k citations
- 8
G. Mitselmakher
France
223k citations
- 9
E. Rossi
France
221k citations
- 10
A. J. Beddall
France
211k citations
Ranked by citations received across their whole record, among researchers with at least three works on this topic.
Where is Muon and positron interactions and applications research done?
The largest centres of Muon and positron interactions and applications research in 2022-now are Beijing (China), Moscow (Russia), Tokyo (Japan) and Hefei (China).
Where is the best place to study Muon and positron interactions and applications?
Among universities, judged by research, ETH Zurich and University of Science and Technology of China score highest, combining excellence, specialisation, size, growth and international reach. Research strength is one signal when choosing where to study; it does not measure teaching.
| # | University | Score | Top 10% | Specialisation | Works | Growth |
|---|---|---|---|---|---|---|
| 1 | ETH ZurichSwitzerland |
60.0 | 6.7% | 11.0× | 8 | +49.9% |
| 2 | University of Science and Technology of ChinaChina |
40.0 | 11.3% | 10.7× | 14 | +79.3% |
Universities only. The score blends excellence (40%), size (30%), specialisation (10%), growth (10%), international reach (10%), 2022-now; growth compares 2018-21 with 2022-25 and counts up to +20%, since a jump from a small base is mostly noise.
Every institution in Muon and positron interactions and applications, country by countryIs Muon and positron interactions and applications research growing?
Output in 2022-2025 was 3% lower than in 2018-2021, peaking in 2002.
The same series as a ribbon: one cell per year, darker for more. The line above answers how much; this answers when.
Its share of all research
Growing output can still be a shrinking share: all of science grows. This is Muon and positron interactions and applications as a percentage of every work published that year, 0.0053% in 2024.
Fractional works of Muon and positron interactions and applications over all fractional works that year. How the balance of science has shifted.
How much of it reaches the world top 10%
Year by year.
Of each year's works in it, the share that reached the world's 10% most cited for their field and year. A field is the world for its own topics, so there is no other line to hold it against.
Which topics inside it are moving
Growth and decline on one axis around a shared zero. Two lists side by side hide the thing that matters: whether the growth dwarfs the decline, or the other way round.
Discussion
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