alpha particles
Helium nuclei ejected
Alpha particles are a type of ionizing radiation consisting of two protons and two neutrons—essentially a helium nucleus ejected at high speed from a radioactive atom.
They're relatively heavy and slow, stopped by a sheet of paper or human skin, but dangerous if inhaled or ingested.
Radon gas emits alpha particles that can damage lung tissue.
Unstable atoms releasing energy
- half-lifePeriod for fifty-percent reduction
- uraniumElement ninety-two
- thoriumActinide, atomic number ninety
- radonRadioactive inert gas
polonium · radium · actinides · transmutation · radioisotope · emanation · disintegration · curie
Central controlling part
- nucleonProton or neutron
- protonPositive nuclear particle
- neutronUncharged nuclear particle
- nuclear forceBinds subatomic particles
strong force · nuclear reaction · fusion · fission · bombardment · transmutation · Rutherford
Charge acquisition process
- scatteringDistribution in many directions
- stopping powerCapacity to halt motion
- energy lossPower that escapes unused
- penetrationEntry into something
range · shielding · absorption
Electron-displacing electromagnetic energy
- gamma raysHighest-frequency electromagnetic radiation
- beta particlesElectrons from radioactive decay
- radiation therapyIonizing beams treating malignancies
- brachytherapyLocalized implanted radiation oncology
radiation damage · contamination · fallout · radon exposure · lung cancer
Ionizing radiation detector
- scintillationRapid light variation
- cloud chamberRadiation visualization apparatus
- dosimeterExposure measurement device
- trackPath or monitored route
radioactive decay
Unstable atoms releasing energy
- half-lifePeriod for fifty-percent reduction
- uraniumElement ninety-two
- thoriumActinide, atomic number ninety
radon · polonium · radium · actinides · transmutation · radioisotope · emanation · disintegration · curie · activity
nucleus
Central controlling part
nuclear force · strong force · nuclear reaction · fusion · fission · bombardment · transmutation · Rutherford
ionization
Charge acquisition process
- scatteringDistribution in many directions
- stopping powerCapacity to halt motion
- energy lossPower that escapes unused
penetration · range · shielding · absorption
ionizing radiation
Electron-displacing electromagnetic energy
- gamma raysHighest-frequency electromagnetic radiation
- beta particlesElectrons from radioactive decay
- radiation therapyIonizing beams treating malignancies
brachytherapy · radiation damage · contamination · fallout · radon exposure · lung cancer
Geiger counter
Ionizing radiation detector
- scintillationRapid light variation
- cloud chamberRadiation visualization apparatus
- dosimeterExposure measurement device
track · pulse · counting · spectroscopy
- high energygamma rays, cosmic rays, synchrotron, neutrinos, quarks
- nuclear sciencenuclear fission, nuclear physics, nuclear fusion, radiation, nuclear fuel
- radiation scienceradioactive decay, ionizing radiation, gamma rays, beta particles, isotopes
- Nuclear Falloutfallout, radioactive dust, fallout zone, fallout shelter, contamination zone
- particleselectrons, electron, protons, proton, neutrons
- nuclear physicsnuclear energy, fission, nuclear fission, neutron, proton
alpha particlesgamma rays
Highest-frequency electromagnetic radiation
gamma radiation · beta particles · X-rays · beta radiation · cosmic rays
alphabet, particle, alpha, alphabetize, alphabetical, alphabetic, alphabetized, alphabetically, alphanumeric