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Caesium-137: Applications, Products & Standards

Caesium-137 (13755Cs), cesium-137 (US), or radiocaesium, is a radioactive isotope of caesium that is formed as one of the more common fission products by the nuclear fission of uranium-235 and other fissionable isotopes in nuclear reactors and nuclear weapons. Trace quantities also originate from spontaneous fission of uranium-238. It is among the most…

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Caesium-137 topic overview

The analysis highlights Applications, Products and Standards as prominent areas in the source structure around Caesium-137.

Related topics
151
Source areas
6
Connected nodes
160
Extracted relationships
167
Concept neighborhoods
43
Bridge connections
160

What this topic covers Research coverage

Source areas are shown by the number of related topics found in each part of the analysis. Use smaller areas too: they can reveal specialized angles and content gaps.

Incidents and accidents · 46 topics
Environmental contamination · 30 topics
Uses · 25 topics
Overview · 21 topics
Health risks · 17 topics
Decay · 12 topics

Smaller areas are not necessarily less important. They contain fewer connections in this analysis and can be useful for finding specialized angles or coverage gaps.

Key facts & relationships

High-confidence facts extracted from structured source data. Use them as anchors for further research.

Decay mode
Decay energy (MeV)
Decay products
137mBa 137Ba
Half-life (t1/2)
30.04 years
Isotope mass
136.907 Da
Names
caesium-137
Natural abundance
0 (trace)

Explore all related topics Closing gaps

Browse the complete topic structure, not only the most central items. Less prominent entities and concepts can reveal missing angles, specialized context and useful research gaps. Each item opens a new analysis centered on that subject.

Overview

Decay

Uses

Health risks

Environmental contamination

Incidents and accidents

Bibliography

  • Doi Doi (identifier)
  • ISBN ISBN (identifier)

Advanced semantic analysis

Deeper signals for content research, entity SEO and topical coverage. The plain-language headings explain what each technical view is useful for.

How Caesium-137 connects Entity context

The extracted context around Caesium-137 shows recurring relationship patterns in the source. For example, Caesium-137 → Alaska, By, Cs, Fukushima, Fukushima Daiichi, Fukushima Prefecture, Fukushima-derived, Gulf, In April, In July, In March, It, Japan, Japanese, North Pacific, North Pacific Ocean, Prussian, Scientific Reports, The, These Another extracted example is Caesium-137 → Atoms, February, However, Kabin Buri, March, OAP, On, Peace, Prachinburi, Secretary-General, Thai, Thailand, Thailand's Office. Use these groups to spot repeated connection types before inspecting the individual relationships.

Caesium-137

Top relations

related to Fukushima Daiichi disaster · 21
Caesium-137 → Alaska, By, Cs, Fukushima, Fukushima Daiichi, Fukushima Prefecture, Fukushima-derived, Gulf, In April, In July, In March, It, Japan, Japanese, North Pacific, North Pacific Ocean, Prussian, Scientific Reports, The, These
related to 2023 Prachinburi, Thailand · 13
Caesium-137 → Atoms, February, However, Kabin Buri, March, OAP, On, Peace, Prachinburi, Secretary-General, Thai, Thailand, Thailand's Office
related to Health risks · 13
Caesium-137 → After, Belarus, Bq/kg, Chernobyl, Cs, Cs-polluted, However, In, It, LD50, MBq/kg, Measurements, The
related to Uses · 13
Caesium-137 → Also, Co, Cobalt-60, Cs, CsCl, Due, However, In, Ir, Isotope, It, Other, The
related to 2023 Western Australia, Australia · 11
Caesium-137 → Andrew Robertson, Experts, February, Health's, January, Public, The, The State Government, WA Department, Western Australia, X-rays
related to Chernobyl disaster · 10
Caesium-137 → An, As, Bq/kg, Chernobyl, Europe, Germany, In Scandinavia, Norwegian, The Chernobyl, This
related to 1994 Tammiku, Estonia · 9
Caesium-137 → Estonia, Gy, Harju County, Männiku, One, Saku Parish, Tammiku, The, Three
related to Environmental contamination · 9
Caesium-137 → Chernobyl, Cs, Fukushima Daiichi, Goiânia Accident, Jefferson, July, Surface, This, Trinity
related to 2016 Helsinki, Finland · 8
Caesium-137 → According, Finland, Finland's Radiation, Helsinki, March, Nuclear Safety Authority, On, STUK
related to 2019 Seattle, Washington, United States · 8
Caesium-137 → Five, Harborview Medical Center, May, Research, Seattle, Thirteen, Training, Washington

Important terminology

Use these terms to understand the vocabulary surrounding the topic, not as a checklist for keyword stuffing.

Important terminology

caesium radioactive nuclear 137 radiation also chernobyl found high cs released half-life fission used material capsule source 30 isotope isotopes

Caesium-137 relationships Subject–Predicate–Object triples

TTTA extracted 167 structured relationships around Caesium-137. Examples in this analysis include Caesium-137 → Decay mode → Decay energy (MeV) and Caesium-137 → Decay products → 137mBa 137Ba. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Caesium-137Decay modeDecay energy (MeV)1.00infobox
Caesium-137Decay products137mBa 137Ba1.00infobox
Caesium-137Half-life (t1/2)30.04 years1.00infobox
Caesium-137Isotope mass136.907 Da1.00infobox
Caesium-137Namescaesium-1371.00infobox
Caesium-137Natural abundance0 (trace)1.00infobox
Caesium-137Neutrons (N)821.00infobox
Caesium-137Parent isotopes137Xe (β−)1.00infobox
Caesium-137Protons .mw-parser-output .nobold{font-weight:normal}(Z)551.00infobox
Caesium-137Spin.mw-parser-output .frac{white-space:nowrap}.mw-parser-output .frac .num,.mw-parser-output .frac .den{font-size:80%;line-height:0;vertical-align:super}.mw-parser-output .frac .de…1.00infobox
Caesium-137Symbol137Cs1.00infobox
Caesium-137β- (beta decay)0.51201.00infobox
Caesium-137γ (gamma-rays)0.66171.00infobox

Related concept clusters Concept neighborhoods

The concept neighborhoods around Caesium-137 bring nearby vocabulary together. In this analysis, examples include Radiation, Released and Nuclear. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Caesium-137
    • Radiation
    • Released
    • Nuclear
    • Chernobyl
    • Found
    • Radioactive
    • One
    • Caesium
    • Fukushima
    • Health
    • Isotope
    • Levels
  • caesium-137
    • Radiation
    • Released
    • Nuclear
    • Chernobyl
    • Found
    • Radioactive
    • One
    • Caesium
    • Fukushima
    • Health
    • Isotope
    • Levels
  • isotope of caesium
    • Products
    • Radioactive
    • Fission
    • Isotopes
    • One
    • High
    • Nuclear
    • Also
    • Caesium-137
    • Isotope
    • Activity
    • Material
  • nuclear fission
    • Products
    • Isotope
    • One
    • Chernobyl
    • Radiation
    • Fukushima
    • Half-life
    • Isotopes
    • Nuclear
    • Stable
    • Waste
    • Also
  • nuclear reactors
    • Chernobyl
    • Radiation
    • Fukushima
    • Half-life
    • Isotopes
    • Stable
    • Waste
    • Also
    • Radioactive
    • Products
    • Strontium-90
    • Years
  • nuclear weapons
    • Chernobyl
    • Radiation
    • Fukushima
    • Half-life
    • Isotopes
    • Stable
    • Waste
    • Also
    • Radioactive
    • Products
    • Strontium-90
    • Years
  • chernobyl nuclear accident
    • Released
    • Years
    • Chernobyl
    • Half-life
    • Nuclear
    • Radiation
    • Fukushima
    • Isotopes
    • Stable
    • Strontium-90
    • Waste
    • Health
  • nuclear explosions
    • Chernobyl
    • Radiation
    • Fukushima
    • Half-life
    • Isotopes
    • Stable
    • Waste
    • Also
    • Radioactive
    • Products
    • Strontium-90
    • Years

Connections between topic areas Semantic bridges

For Caesium-137, one of the stronger structural bridges in this analysis connects Caesium-137 with Incidents and accidents. Bridges highlight paths between different parts of the map and can reveal research angles that are easy to miss in a flat list.

Min side: 3
Caesium-137Incidents and accidents · splits 114 ⟂ 47
Caesium-137Environmental contamination · splits 130 ⟂ 31
Caesium-137Uses · splits 135 ⟂ 26
Caesium-137Overview · splits 139 ⟂ 22
Caesium-137Health risks · splits 143 ⟂ 18
Caesium-137Decay · splits 148 ⟂ 13
Caesium-137Bibliography · splits 158 ⟂ 3

Map overview Semantic statistics

Caesium-137

Nodes161
Edges160
Triples167
Avg. degree1.99
Density0.012422
Components1

Source & methodology

TTTA analyzes the structure around Caesium-137 to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as Applications, Products & Standards, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Caesium-137 · EN edition · Analysis: TopicsToTalkAbout

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