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Helium-3: History, Applications, Measurement & Standards

Helium-3 (3He) is a light, stable isotope of helium with two protons and one neutron in a nucleus called helion. It is in contrast to the more common isotope, helium-4, which has two protons and two neutrons. Helium-3 and hydrogen-1 are the only stable nuclides with more protons than neutrons. It was discovered in 1939. Helium-3 atoms are fermionic and…

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Helium-3 topic overview

The analysis highlights History, Applications, Measurement and Standards as prominent areas in the source structure around Helium-3.

Related topics
194
Source areas
6
Connected nodes
204
Extracted relationships
159
Concept neighborhoods
49
Bridge connections
204

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.

Overview · 50 topics
Uses · 50 topics
Natural abundance · 36 topics
Physical properties · 26 topics
Human production · 23 topics
History · 9 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.

Half-life (t1/2)
stable
Isotope mass
3.016029322 Da
Names
helium-3, tralphium (obsolete)
Natural abundance
0.000137% (atmosphere) 0.01% (Solar System)
Neutrons (N)
1
Parent isotopes
3H (beta decay of tritium)

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

History

Physical properties

Natural abundance

Human production

Uses

Notes and references

  • Bibcode Bibcode (identifier)
  • 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 Helium-3 connects Entity context

The extracted context around Helium-3 shows recurring relationship patterns in the source. For example, Helium-3 → American Institute, Archived, August, Bibcode, Challenges, Daunt, Dobbs, Energy, Enterprise, Exotic, Exploration, Fusion Power, Goodwin, Halperin, Helium, Human Settlement, ISBN, July, Liquid, Moon Another extracted example is Helium-3 → A-phase, Alexei Abrikosov, An, At, B-phase, B-phases, BCS, Bose, Cooper, David Lee, Douglas Osheroff, During, Each Cooper, Einstein, Excited, In, Many, Nobel Prize, Physics, Robert Coleman Richardson. Use these groups to spot repeated connection types before inspecting the individual relationships.

Helium-3

Top relations

related to Bibliography · 44
Helium-3 → American Institute, Archived, August, Bibcode, Challenges, Daunt, Dobbs, Energy, Enterprise, Exotic, Exploration, Fusion Power, Goodwin, Halperin, Helium, Human Settlement, ISBN, July, Liquid, Moon
related to Superfluidity · 29
Helium-3 → A-phase, Alexei Abrikosov, An, At, B-phase, B-phases, BCS, Bose, Cooper, David Lee, Douglas Osheroff, During, Each Cooper, Einstein, Excited, In, Many, Nobel Prize, Physics, Robert Coleman Richardson
related to Moon · 10
Helium-3 → Because, Chandrayaan-1, Gerald Kulcinski, Indian Space Research Organisation's, Materials, Moon, Moon's, No, October, The
related to history · 9
Helium-3 → Australian, Cambridge Cavendish Laboratory, Isolation, Luis Alvarez, Mark Oliphant, Oliphant, Robert Cornog, The, University
related to Nuclear magnetic resonance · 9
Helium-3 → Because, During, In, It, NMR, NMR-active, Nuclear, The, This
related to Tritium decay · 7
Helium-3 → DOE, DOE Isotope Program, Energy, Production, United States, US Department, Virtually
related to External links · 6
Helium-3 → Archived, BBC Horizon, Physics, Sale, The Nobel Prize, Wayback MachineMoon
related to Physical properties · 6
Helium-3 → Also, Da, Due, On, The, This
related to Helium-3 spin echo · 5
Helium-3 → Cambridge, Cavendish Laboratory, Chemistry Department, Surface Physics Group, Swansea University
related to Solar nebula (primordial) abundance · 5
Helium-3 → Galileo, Jupiter, One, Terrestrial, This

Important terminology

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

Important terminology

fusion 3he tritium helium-4 energy nuclear helium neutron per would gas neutrons superfluid protons also natural atmosphere two radioactive power

Helium-3 relationships Subject–Predicate–Object triples

TTTA extracted 159 structured relationships around Helium-3. Examples in this analysis include Helium-3 → Half-life (t1/2) → stable and Helium-3 → Isotope mass → 3.016029322 Da. The table shows each extracted connection, where it came from and its confidence.

SubjectPredicateObjectConfidenceSrc
Helium-3Half-life (t1/2)stable1.00infobox
Helium-3Isotope mass3.016029322 Da1.00infobox
Helium-3Nameshelium-3, tralphium (obsolete)1.00infobox
Helium-3Natural abundance0.000137% (atmosphere) 0.01% (Solar System)1.00infobox
Helium-3Neutrons (N)11.00infobox
Helium-3Parent isotopes3H (beta decay of tritium)1.00infobox
Helium-3Protons .mw-parser-output .nobold{font-weight:normal}(Z)21.00infobox
Helium-3Spin.mw-parser-output .sfrac{white-space:nowrap}.mw-parser-output .sfrac.tion,.mw-parser-output .sfrac .tion{display:inline-block;vertical-align:-0.5em;font-size:85%;text-align:cent…1.00infobox
Helium-3Symbol3He1.00infobox
Helium-3causesit to have a higher zero-point energy than helium-40.90text
those of the Hawaiian Islandsinstance ofSome helium-3 finds its way up through deep-sourced hotspot volcanoes0.80text
but only 300 g per year is emitted to the atmosphereinstance ofSome helium-3 finds its way up through deep-sourced hotspot volcanoes0.80text

Related concept clusters Concept neighborhoods

The concept neighborhoods around Helium-3 bring nearby vocabulary together. In this analysis, examples include Helium-4, Fusion and Tritium. Use the clusters to find adjacent concepts and terminology that may deserve separate research.

  • Helium-3
    • Helium-4
    • Fusion
    • Tritium
    • Energy
    • Would
    • Also
    • Power
    • Gas
    • Nuclear
    • Production
    • Atmosphere
    • Low
  • helium-3
    • Helium-4
    • Fusion
    • Tritium
    • Energy
    • Would
    • Also
    • Power
    • Gas
    • Nuclear
    • Production
    • Atmosphere
    • Low
  • helium
    • Natural
    • Isotope
    • Gas
    • Atmosphere
    • Energy
    • Per
    • Atoms
    • Protons
    • Neutrons
    • Radioactive
    • Total
    • Decay
  • atmosphere
    • Also
    • Isotope
    • Helium
    • One
    • Natural
    • Ratio
    • Helium-3
    • Gas
    • Nuclear
    • Per
    • Helium-4
    • Spin
  • nuclear fusion
    • Power
    • Tritium
    • Higher
    • Energy
    • Magnetic
    • Helium-3
    • Production
    • Electricity
    • Produced
    • Reaction
    • Would
    • Spin
  • energy source
    • Power
    • Fusion
    • Low
    • Helium
    • Electricity
    • Helium-3
    • Total
    • Decay
    • Would
    • Nuclear
    • Per
    • Isotope
  • p-b fusion
    • Power
    • Higher
    • Energy
    • Helium-3
    • Electricity
    • Reaction
    • Would
    • Lower
    • Neutrons
    • Production
    • Radioactive
    • Process
  • inertial confinement fusion
    • Power
    • Higher
    • Energy
    • Helium-3
    • Electricity
    • Reaction
    • Would
    • Lower
    • Neutrons
    • Production
    • Radioactive
    • Process

Connections between topic areas Semantic bridges

For Helium-3, one of the stronger structural bridges in this analysis connects Helium-3 with Overview. 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
Helium-3Overview · splits 154 ⟂ 51
Helium-3Uses · splits 154 ⟂ 51
Helium-3Natural abundance · splits 168 ⟂ 37
Helium-3Physical properties · splits 178 ⟂ 27
Helium-3Human production · splits 181 ⟂ 24
Helium-3History · splits 195 ⟂ 10
Helium-3Notes and references · splits 201 ⟂ 4

Map overview Semantic statistics

Helium-3

Nodes205
Edges204
Triples159
Avg. degree1.99
Density0.009756
Components1

Source & methodology

TTTA analyzes the structure around Helium-3 to surface related topics, entities, relationships, concept neighborhoods and bridge connections. Use the map to explore areas such as History, Applications, Measurement & Standards, including less central topics that may reveal useful research gaps. Automatically extracted connections are research leads rather than rewritten encyclopedia content.

Source: Wikipedia — Helium-3 · EN edition · Analysis: TopicsToTalkAbout

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