nuclear radiation

Invisible atomic energy

Nuclear radiation is energy or particles emitted from unstable atomic nuclei as they decay.

The three main types—alpha, beta, and gamma—differ in penetrating power and biological effect.

Nuclear radiation can be harnessed for power generation and medical imaging, but exposure at high levels damages living tissue: The workers were tested for nuclear radiation exposure.

Often shortened to just radiation in context.

physics

isotopes

Atomic number twins

neutrons · half-life · radioactive decay · fission · fusion · ionizing · electromagnetic spectrum · photons · cosmic rays · gray

danger

contamination

Introduction of impurities

Fukushima · Three Mile Island · exposure · carcinogen · mutagenic · toxicity · cancer · leukemia · thyroid cancer · birth defects

energy

reactor

Controlled fission apparatus

fuel rods · chain reaction · electricity generation · cooling tower · turbine · megawatt · enrichment · spent fuel · breeder reactor · tokamak

medicine

radiotherapy

Medical radiation for cancer

cobalt-60 · iodine-131 · PET scan · dosimetry · gamma knife · linear accelerator · radiology · diagnostic imaging · tracer · technetium-99m

protection

shielding

Protecting from harm

Geiger counter · decontamination · evacuation · containment · safety protocols · protective clothing · iodine tablets · bunker · fallout shelter · monitoring

Categories
Opposites
radiation source/type

nuclear radiationchemical energy

Power stored in bonds

thermal radiation · chemical reaction · electromagnetic radiation · infrared radiation · visible light

safety/hazard level

nuclear radiationradiation shielding

Protective barrier against emissions

background radiation · lead shielding · radio waves · visible light · safe zone

natural vs. artificial

nuclear radiationcosmic rays

Energetic particles from beyond

solar radiation · cosmic radiation · background radiation · sunlight · geothermal energy

Family

nuclear, radiation, nucleus, nuclei, nucleic, nucleotide, radiate, radiant, radiance

Familiarity
Top 100,000
Profile
Known to kids · Used worldwide · Timeless · Negative · Rated PG