Gyrotron and Vacuum Electronics Research
Gyrotron and Vacuum Electronics Research is a research topic within Atomic and Molecular Physics, and Optics. Science Explorer counts 32k research works in it since 1950. 10.6% of them reached the world's top 10% most cited for their field and year.
This cluster of papers focuses on the development, theory, and applications of high-power vacuum electronic sources, particularly in the terahertz frequency range. It covers topics such as gyrotrons, plasma physics, microwave generation, electron cyclotron masers, traveling-wave tubes, dynamic nuclear polarization, space-charge-limited flow, and high-power microwave devices.
- Vacuum Electronics
- High Power Terahertz Sources
- Gyrotrons
- Plasma Physics
- Microwave Generation
- Electron Cyclotron Masers
- Traveling-Wave Tubes
- Dynamic Nuclear Polarization
- Space-Charge-Limited Flow
- High-Power Microwave Devices
- Research works
- 32k fractional, since 1950
- In the world top 10%
- 3.4k per year above
- Top-10% rate
- 10.6% share of its works in the world top 10%
- Growth, 2013–17 → 2018–22
- -7% the tick is no change
Which countries lead Gyrotron and Vacuum Electronics Research research?
By volume, China and Russia publish the most (1.1k and 444 works in 2022–2025).
By volume, 2022–2025
- 1 China 1.1k works
- 2 Russia 444 works
- 3 United States 386 works
- 4 India 189 works
- 5 Germany 118 works
- 6 Japan 109 works
- 7 Ukraine 65 works
- 8 France 65 works
- 9 Italy 63 works
- 10 United Kingdom 58 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 Gyrotron and Vacuum Electronics Research research?
By volume in 2022–2025, University of Electronic Science and Technology of China publishes the most Gyrotron and Vacuum Electronics Research research, followed by Institute of Applied Physics and National University of Defense Technology.
By volume, 2022–2025
- 1 University of Electronic Science and Technology of ChinaChina 261 works
- 2 Institute of Applied PhysicsRussia 85 works
- 3 National University of Defense TechnologyChina 58 works
- 4 Chinese Academy of SciencesChina 47 works
- 5 Shenzhen UniversityChina 26 works
- 6 Aerospace Information Research InstituteChina 26 works
- 7 Xi'an Jiaotong UniversityChina 25 works
- 8 Institute of High Current ElectronicsRussia 23 works
- 9 Central Electronics Engineering Research InstituteIndia 23 works
- 10 Northwest Institute of Nuclear TechnologyChina 23 works
Who are the leading researchers in Gyrotron and Vacuum Electronics Research?
The most-cited researchers publishing on Gyrotron and Vacuum Electronics Research include E. L. Wright.
- 1 E. L. Wright United States 9.3k citations
Ranked by citations received across their whole record, among researchers with at least three works on this topic.
Where is Gyrotron and Vacuum Electronics Research research done?
The largest centres of Gyrotron and Vacuum Electronics Research research in 2022–2025 are Chengdu (China), Beijing (China), Moscow (Russia) and Nizhny Novgorod (Russia). Among places with at least 20 works in it, it is an unusually large share of all research in Batavia, Nizhny Novgorod and Pilāni.
Largest cities, 2022–2025
Where it is the local speciality
- BataviaUS · 22.4 works84×
- Nizhny NovgorodRU · 100.5 works75×
- PilāniIN · 25.1 works37×
- TomskRU · 45.1 works30×
Location quotient: how much more of its research is in Gyrotron and Vacuum Electronics Research than the world average.
Where is the best place to study Gyrotron and Vacuum Electronics Research?
Among universities, judged by research, Karlsruhe Institute of Technology, University of Electronic Science and Technology of China and N. I. Lobachevsky State University of Nizhny Novgorod 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.
One dot per university in the table below. The upper left is the interesting corner: small places doing unusually strong work.
| # | University | Score | Top 10% | Specialisation | Works | Growth |
|---|---|---|---|---|---|---|
| 1 | Karlsruhe Institute of TechnologyGermany | 66.4 | 16.8% | 14.6× | 22 | +31.7% |
| 2 | University of Electronic Science and Technology of ChinaChina | 56.5 | 3.2% | 80.5× | 261 | +18.0% |
| 3 | N. I. Lobachevsky State University of Nizhny NovgorodRussia | 51.5 | 6.9% | 26.8× | 10 | +174.7% |
| 4 | University of Chinese Academy of SciencesChina | 51.3 | 12.8% | 4.7× | 22 | +202.4% |
| 5 | Shenzhen UniversityChina | 49.5 | 4.9% | 12.3× | 26 | — |
| 6 | Tomsk State University of Control Systems and Radio-ElectronicsRussia | 47.6 | 2.2% | 113.8× | 15 | +347.3% |
| 7 | National University of Defense TechnologyChina | 46.9 | 4.2% | 25.8× | 58 | +8.8% |
| 8 | National Research Nuclear University MEPhIRussia | 46.3 | 1.1% | 36.0× | 13 | +213.1% |
| 9 | Aerospace Information Research InstituteChina | 43.6 | 2.4% | 76.5× | 26 | — |
| 10 | Huazhong University of Science and TechnologyChina | 41.6 | 15.1% | 4.8× | 22 | -10.1% |
Universities only. Score blends excellence (30%), specialisation (25%), size (20%), growth (15%) and international reach (10%), 2015–2022; growth compares 2010–14 with 2015–19.
Is Gyrotron and Vacuum Electronics Research research growing?
Output in 2018–2022 was 7% lower than in 2013–2017, 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.
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.