[Absolute measurement of beta-ray emitters of low energy and low specific activity].
1959
Y LE GALLIC, and
M THENARD
UI
MeSH Term
Description
Entries
D007554
Isotopes
Atomic species differing in mass number but having the same atomic number. (Grant & Hackh's Chemical Dictionary, 5th ed)
Isotope
D011827
Radiation
Emission or propagation of acoustic waves (SOUND), ELECTROMAGNETIC ENERGY waves (such as LIGHT; RADIO WAVES; GAMMA RAYS; or X-RAYS), or a stream of subatomic particles (such as ELECTRONS; NEUTRONS; PROTONS; or ALPHA PARTICLES).
Radiations
D001610
Beta Particles
High energy POSITRONS or ELECTRONS ejected from a disintegrating atomic nucleus.