radioisotopes
Radioactive atomic variants
Radioisotopes are atoms with unstable nuclei that emit radiation as they decay.
They occur naturally or are produced artificially for medical imaging, cancer treatment, and scientific research.
Carbon-14, a radioisotope used in dating ancient materials, decays predictably over thousands of years.
The patient was injected with a radioisotope to trace blood flow.
Path-marking projectile
- PETNuclear medicine imaging
- radiopharmaceuticalMedicinal radioactive substance
- technetium-99mMetastable medical radioisotope
- iodine-131Radioactive halogen isotope
Controlled fission apparatus
- fissionNuclear breakup releasing energy
- uranium-235Fissile nuclear isotope
- plutonium-239Fissile actinide isotope
- enrichmentImprovement through addition
breeding · criticality · reprocessing · actinides · transuranic · cobalt-60 · cesium-137 · strontium-90
Period for fifty-percent reduction
- alphaFirst Greek letter
- betaGreek alphabet's second letter
- gammaGreek alphabet's third
- transmutationComplete change of form
emission · activity · disintegration · positron · spontaneous · curie · metastable
Complete elimination of microbes
- radiographyDiagnostic imaging using X-rays
- gaugingMeasuring or estimating
- food-preservationPreventing edible spoilage
- cobalt-60Radioactive isotope for therapy
Radioactive isotope for dating
- potassium-argonIsotopic age-determination technique
- uranium-leadIsotopic age-determination method
- half-lifePeriod for fifty-percent reduction
- geochronologyStudy of geological ages
radiocarbon · archaeology · paleontology · stratigraphy · fossil · thermoluminescence · sediment · tritium
tracer
Path-marking projectile
- PETNuclear medicine imaging
- radiopharmaceuticalMedicinal radioactive substance
- technetium-99mMetastable medical radioisotope
iodine-131 · SPECT · brachytherapy · radiotherapy · oncology
reactor
Controlled fission apparatus
- fissionNuclear breakup releasing energy
- uranium-235Fissile nuclear isotope
- plutonium-239Fissile actinide isotope
enrichment · breeding · criticality · reprocessing · actinides · transuranic · cobalt-60 · cesium-137 · strontium-90 · moderator
half-life
Period for fifty-percent reduction
transmutation · emission · activity · disintegration · positron · spontaneous · curie · metastable
sterilization
Complete elimination of microbes
- radiographyDiagnostic imaging using X-rays
- gaugingMeasuring or estimating
- food-preservationPreventing edible spoilage
carbon-14
Radioactive isotope for dating
- potassium-argonIsotopic age-determination technique
- uranium-leadIsotopic age-determination method
- half-lifePeriod for fifty-percent reduction
geochronology · radiocarbon · archaeology · paleontology · stratigraphy · fossil · thermoluminescence · sediment · tritium · radiometric
ionizing
Producing charged particles
- nuclear energynuclear power, nuclear reactors, nuclear fission, nuclear fusion, uranium
- nuclear sciencenuclear fission, nuclear physics, nuclear fusion, nuclear fuel, nucleus
- radioactivityradionuclides, half-life, beta decay, gamma rays, alpha particles
- isotope methodsradiotracers, carbon-14, tritium, radiocarbon, radiochemistry
- isotope sciencecarbon-14, carbon-13, oxygen-18, nitrogen-15, uranium-238
- ORNL Researchnuclear research, energy research, materials science, supercomputing, nuclear physics