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Topic · Radiological and Ultrasound Technology

Radioactivity and Radon Measurements

Radioactivity and Radon Measurements is a research topic within Radiological and Ultrasound Technology. Science Explorer counts 30k research works in it since 1950. 16.0% of them reached the world's top 10% most cited for their field and year.

This cluster of papers explores the sources, effects, and health implications of ionizing radiation, with a focus on radon, depleted uranium, and natural radioactivity. It covers topics such as lung cancer risk, environmental impact, toxicity, exposure pathways, and the assessment of radiation hazards in various geological and industrial settings.

  • Ionizing Radiation
  • Radon
  • Lung Cancer
  • Depleted Uranium
  • Radioactivity
  • Health Effects
  • Environmental Impact
  • Radionuclides
  • Toxicity
  • Exposure Pathways
Research works
30k
fractional, since 1950
In the world top 10%
4.9k
per year above
Top-10% rate
16.0%
share of its works in the world top 10%
Growth, 2013–17 → 2018–22
+28%
the tick is no change

This ranks research output and citation impact. It says nothing about the quality of diagnosis, treatment or care.

Which countries lead Radioactivity and Radon Measurements research?

By volume, China and India publish the most (594 and 383 works in 2022–2025).

By volume, 2022–2025

  1. 1 China 594 works
  2. 2 India 383 works
  3. 3 United States 352 works
  4. 4 Russia 264 works
  5. 5 Iraq 247 works
  6. 6 Nigeria 238 works
  7. 7 Japan 211 works
  8. 8 Türkiye 174 works
  9. 9 Egypt 130 works
  10. 10 Italy 126 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.

China: 21.8%India: 14.1%United States: 13.0%Russia: 9.7%6 others listed: 41.4%22%largest
China594 · 21.8%India383 · 14.1%United States352 · 13.0%Russia264 · 9.7%6 others listed1,124 · 41.4%

Shares of the rows listed above, not of the whole node.

Which institutions lead Radioactivity and Radon Measurements research?

By volume in 2022–2025, Bhabha Atomic Research Centre publishes the most Radioactivity and Radon Measurements research, followed by University of Kufa and University of South China.

By volume, 2022–2025

  1. 1 Bhabha Atomic Research CentreIndia 40 works
  2. 2 University of KufaIraq 36 works
  3. 3 University of South ChinaChina 30 works
  4. 4 Nuclear Materials AuthorityEgypt 24 works
  5. 5 University of BaghdadIraq 23 works
  6. 6 Chinese Academy of SciencesChina 20 works
  7. 7 Japan Atomic Energy AgencyJapan 19 works
  8. 8 Lomonosov Moscow State UniversityRussia 18 works
  9. 9 National Institutes for Quantum Science and TechnologyJapan 16 works
  10. 10 Mustansiriyah UniversityIraq 16 works

Who are the leading researchers in Radioactivity and Radon Measurements?

The most-cited researchers publishing on Radioactivity and Radon Measurements include C. Leroy, I. Sýkora and J. Šolc.

  1. 1 C. Leroy Israel 7.3k citations
  2. 2 I. Sýkora United States 6.6k citations
  3. 3 J. Šolc United States 4.8k citations
  4. 4 I. Štekl Czechia 3.2k citations

Ranked by citations received across their whole record, among researchers with at least three works on this topic.

Where is Radioactivity and Radon Measurements research done?

The largest centres of Radioactivity and Radon Measurements research in 2022–2025 are Beijing (China), Moscow (Russia), Cairo (Egypt) and Baghdad (Iraq). Among places with at least 20 works in it, it is an unusually large share of all research in Obninsk.

Largest cities, 2022–2025

  1. 1 Beijing China 178 works
  2. 2 Moscow Russia 104 works
  3. 3 Cairo Egypt 70 works
  4. 4 Baghdad Iraq 68 works
  5. 5 Mumbai India 66 works
  6. 6 Najaf Iraq 42 works
  7. 7 Dhaka Bangladesh 41 works
  8. 8 Hengyang China 40 works
  9. 9 Tokyo Japan 37 works
  10. 10 Tehran Iran 35 works

Where it is the local speciality

  1. ObninskRU · 20.5 works92×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Radioactivity and Radon Measurements than the world average.

See Radioactivity and Radon Measurements on the map

Where is the best place to study Radioactivity and Radon Measurements?

Among universities, judged by research, University of Kufa, Koya University and Ural Federal University 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.

0%20%40%mean 17.63%fractional works in this node (log) →share in the world top 10% →University of Kufa: 36, 6.6%Koya University: 10, 33.7%Ural Federal University: 14, 27.0%Fukushima University: 13, 15.2%Kastamonu University: 9, 19.2%Al-Azhar University: 10, 32.5%Salahaddin University-Erbil: 12, 14.9%University of South China: 30, 10.2%Hirosaki University: 13, 14.9%Mustansiriyah University: 16, 2.1%Koya UniversityUral Federal Univers…Fukushima UniversityUniversity of Kufa
above the meannear itbelow it

One dot per university in the table below. The upper left is the interesting corner: small places doing unusually strong work.

#UniversityScoreTop 10%SpecialisationWorksGrowth
1 University of KufaIraq 65.56.6%38.1×36 +295.8%
2 Koya UniversityIraq 64.133.7%50.3×10 —
3 Ural Federal UniversityRussia 63.127.0%10.0×14 —
4 Fukushima UniversityJapan 62.015.2%125.0×13 +318.5%
5 Kastamonu UniversityTürkiye 58.119.2%12.8×9 +630.2%
6 Al-Azhar UniversityEgypt 58.032.5%5.7×10 +94.0%
7 Salahaddin University-ErbilIraq 52.714.9%14.7×12 +125.0%
8 University of South ChinaChina 51.210.2%25.0×30 -17.5%
9 Hirosaki UniversityJapan 50.914.9%37.2×13 +52.7%
10 Mustansiriyah UniversityIraq 50.82.1%11.8×16 +1172.2%

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 Radioactivity and Radon Measurements research growing?

Output in 2018–2022 was 28% higher than in 2013–2017, peaking in 2021. The fastest-growing topics are Radioactivity and Radon Measurements.

19801990200020102020
grewheldshrank

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.