Phenomenon · phenomenon:radioactive-decay

Radioactive decay

Unstable nuclei emit alpha or beta particles and gamma rays at a rate fixed by the half-life. The kinetic energy of the emitted particles is a steady, unstoppable flux.

Nuclear physicsfirst reported 1896also: alpha decay, beta decay

Atlas record: 4 claims reference this phenomenon — 4 established.

Explorerelations · routes · sources · cite

conditions: radioisotope required

4claims44enumerated routes4routes with complete-composition evidence1candidate routes not searched2cited sources

Relations

drives · 1

Nuclear binding-energy difference—drives→Radioactive decayestablished

produces · 2

Radioactive decay—produces→Beta particlesestablished

beta emitters such as tritium, Ni-63, Pm-147, Sr-90

Radioactive decay—produces→Alpha particlesestablished

alpha emitters such as Pu-238, Am-241, Po-210

governed by · 1

Radioactive decay—governed by→Weak nuclear interactionestablished

beta decay

Enumerated routes through this · 44 (showing 24)

Betavoltaic battery5/5 est · demonstrated
Radioluminescent (beta-photovoltaic) nuclear battery7/7 est · demonstrated
Radioisotope thermoelectric generator7/7 est · demonstrated
Radioisotope heater unit7/7 est · demonstrated
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioluminescence → Light4/4 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Alpha particles → Radioluminescence → Light4/4 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Alpha particles → Alphavoltaic effect → Electron–hole pairs → Electrical work5/5 est · candidate
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Thermal emission → Light6/6 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Alpha particles → Radioisotope heating → Temperature gradient → Thermal emission → Light6/6 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Alkali-metal thermal-to-electric conversion → Ionic current → Electrical work5/7 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Ionic thermoelectric effect → Ionic current → Electrical work7/7 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Marangoni effect → Mechanical motion → Mechanical work7/7 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Thermal shape-memory effect → Mechanical motion → Mechanical work7/7 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Thermochemical redox cycle → Chemical fuel (H₂, CO, syngas) → Chemical fuel7/7 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Thermopolarization effect → Separated surface charge → Electrical work5/7 est · weakly supported
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Thermopolarization effect → Separated surface charge → Electrical work5/7 est · weakly supported
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Seebeck effect → Charge carriers → Electrical work7/7 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Heat conduction → Heat flow → Useful heat7/7 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Thermionic emission → Charge carriers → Electrical work7/7 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Thermogalvanic effect → Ionic current → Electrical work7/7 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Thermally regenerative electrochemical cycle → Ionic current → Electrical work5/7 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Nernst effect → Charge carriers → Electrical work7/7 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Anomalous Nernst effect → Charge carriers → Electrical work7/7 est · extends a recorded pathway
Nuclear binding-energy difference → Radioactive decay → Beta particles → Radioisotope heating → Temperature gradient → Working-fluid expansion (heat-engine cycle) → Mechanical motion → Mechanical work7/7 est · extends a recorded pathway

Cited sources · 2

[1]
M. A. Prelas, et al.. A review of nuclear batteries (2014)
Progress in Nuclear Energy 75, 117–148 · doi:10.1016/j.pnucene.2014.04.007 · crossref ✓ 2026-09-19 · record
[2]
M. G. Spencer, T. Alam. High power direct energy conversion by nuclear batteries (2019)
Applied Physics Reviews 6, 031305 · doi:10.1063/1.5123163 · crossref ✓ 2026-09-20 · record

Cite this entity

Physical Transformation Atlas (2026). entity phenomenon:radioactive-decay: Radioactive decay. Dataset revision rbfbfcbb70e57 (hash of the canonical data). https://physical-transformation-atlas.wldud5192.workers.dev/phenomenon/radioactive-decay

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