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Topic · Radiation

Radioactive Decay and Measurement Techniques

Radioactive Decay and Measurement Techniques is a research topic within Radiation. Science Explorer counts 11k research works in it since 1950. 10.2% of them reached the world's top 10% most cited for their field and year.

This cluster of papers revolves around the measurement and analysis of radionuclide decay rates, with a focus on techniques such as liquid scintillation counting, coincidence counting, and ionization chambers. It explores topics such as the influence of solar activity on decay rates, uncertainty assessment of half-lives, and the development of standardization methodologies for various radionuclides.

  • Radionuclide Metrology
  • Decay Rates
  • Liquid Scintillation Counting
  • Half-life Measurements
  • Nuclear Decay Parameters
  • Coincidence Counting
  • Solar Influence
  • TDCR Method
  • Activity Standardization
  • Ionization Chambers
Research works
11k
fractional, since 1950
In the world top 10%
1.1k
per year above
Top-10% rate
10.2%
share of its works in the world top 10%
Growth, 2018-21 → 2022-25
+5%
the tick is no change
Largest producer
United States
27% of the 10 largest, 2022-now
Radioactive Decay and Measurement Techniques

Which countries lead Radioactive Decay and Measurement Techniques research?

By volume, the United States and Russia publish the most (189 and 98 works in 2022-now).

By volume, 2022-now

  1. 1 United States 189 works
  2. 2 Russia 98 works
  3. 3 China 85 works
  4. 4 France 74 works
  5. 5 Germany 73 works
  6. 6 Italy 50 works
  7. 7 India 46 works
  8. 8 Japan 38 works
  9. 9 United Kingdom 33 works
  10. 10 Spain 22 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.

United States: 26.7%Russia: 13.8%China: 12.0%France: 10.4%6 others listed: 37.0%27%largest
United States189 · 26.7%Russia98 · 13.8%China85 · 12.0%France74 · 10.4%6 others listed262 · 37.0%

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

Which institutions lead Radioactive Decay and Measurement Techniques research?

By volume in 2022-now, Russian Academy of Sciences publishes the most Radioactive Decay and Measurement Techniques research, followed by Centre National de la Recherche Scientifique and Physikalisch-Technische Bundesanstalt.

By volume, 2022-now

  1. 1 Russian Academy of SciencesRussia 24 works
  2. 2 Centre National de la Recherche ScientifiqueFrance 16 works
  3. 3 Physikalisch-Technische BundesanstaltGermany 13 works
  4. 4 Bureau international des poids et mesuresFrance 13 works
  5. 5 Chinese Academy of SciencesChina 12 works
  6. 6 Commissariat à l'Énergie Atomique et aux Énergies AlternativesFrance 12 works
  7. 7 Helmholtz Association of German Research CentresGermany 11 works
  8. 8 National Institute of Standards and TechnologyUnited States 11 works
  9. 9 University of North Carolina at Chapel HillUnited States 10 works
  10. 10 Department of Atomic EnergyIndia 8 works

Who are the leading researchers in Radioactive Decay and Measurement Techniques?

The most-cited researchers publishing on Radioactive Decay and Measurement Techniques include E. Rossi, R. Kowalewski and Martin J. White.

  1. 1 E. Rossi France 221k citations
  2. 2 R. Kowalewski Israel 183k citations
  3. 3 Martin J. White France 183k citations

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

What are the most cited papers in Radioactive Decay and Measurement Techniques?

The most cited paper in Radioactive Decay and Measurement Techniques is "A simple efficient liquid scintillator for counting aqueous solutions in a liquid scintillation counter" (George A. Bray, 1960), with 7,511 citations. Next come "Bone histomorphometry: Standardization of nomenclature, symbols, and units: Report of the asbmr histomorphometry nomenclature committee" (5,049) and "Precision Measurement of Half-Lives and Specific Activities of U 235 and U 238" (2,874).

Most cited papers
#PaperReleasedCitations
1 A simple efficient liquid scintillator for counting aqueous solutions in a liquid scintillation counter George A. Bray · Analytical Biochemistry Dec 1960 7,511
2 Bone histomorphometry: Standardization of nomenclature, symbols, and units: Report of the asbmr histomorphometry nomenclature committee A. MICHAEL PARFITT, Marc K. Drezner, Francis H. Glorieux et al. · Journal of Bone and Mineral Research Dec 1987 5,049
3 Precision Measurement of Half-Lives and Specific Activities of U 235 and U 238 Arthur H. Jaffey, Kian Flynn, L.E. Glendenin et al. · Physical Review C Nov 1971 2,874
4 CODATA recommended values of the fundamental physical constants: 2010 Peter J. Mohr, Barry N. Taylor, David B. Newell · Reviews of Modern Physics Open access 13 Nov 2012 2,471
5 Dose-rate conversion factors: update Guillaume Guérin, Norbert Mercier, Grzegorz Adamiec · Ancient TL Open access 15 Jun 2011 2,418
All 100 most cited papers, with filters and sorting

Where is Radioactive Decay and Measurement Techniques research done?

The largest centres of Radioactive Decay and Measurement Techniques research in 2022-now are Moscow (Russia), Beijing (China), Paris (France) and Braunschweig (Germany). Among places with at least 20 works in it, it is an unusually large share of all research in Moscow.

Largest cities, 2022-now

  1. 1 MoscowRussia 56 works
  2. 2 BeijingChina 34 works
  3. 3 ParisFrance 18 works
  4. 4 BraunschweigGermany 14 works
  5. 5 SèvresFrance 13 works
  6. 6 LondonUnited Kingdom 11 works
  7. 7 GaithersburgUnited States 11 works
  8. 8 Rio de JaneiroBrazil 11 works
  9. 9 MumbaiIndia 11 works
  10. 10 Gif-sur-YvetteFrance 11 works

Where it is the local speciality

  1. MoscowRU · 55.8 works5.5×
← less than its size predicts1×more →

Location quotient: how much more of its research is in Radioactive Decay and Measurement Techniques than the world average.

See Radioactive Decay and Measurement Techniques on the map

Where is the best place to study Radioactive Decay and Measurement Techniques?

Among universities, judged by research, University of North Carolina at Chapel Hill 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.

Excellenceshare of its work in the world top 10%, 2022-now and all time averaged
40%
Specialisationhow much of its work is in this field, counted up to 10× the world share
10%
Sizeits output in this field, on a log scale
30%
Growthoutput growth, counted from -20% to +20%
10%
Internationalshare of its work with a co-author abroad
10%
Each slider sets a weight; the share it gets of the score is beside it.
#UniversityScoreTop 10%SpecialisationWorksGrowth
1University of North Carolina at Chapel HillUnited States 9.10.9%6.2×10 +16.5%

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 Radioactive Decay and Measurement Techniques, country by country

Is Radioactive Decay and Measurement Techniques research growing?

Output in 2022-2025 was 5% higher than in 2018-2021, peaking in 2025. The fastest-growing topics are Radioactive Decay and Measurement Techniques.

still counting19801990200020102020
grewheldshrank

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 Radioactive Decay and Measurement Techniques as a percentage of every work published that year, 0.0035% in 2024.

still counting0.025%0.050%0.075%Radioactive Decay and Measurement Techniques0.0048% in 202519801990200020102020

Fractional works of Radioactive Decay and Measurement Techniques 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.

still counting5%10%15%Radioactive Decay and Measurement Techniques10.7% in 2025200020102020

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.

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