beta particle

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Related to Beta rays: Alpha rays

be·ta par·ti·cle

an electron, either positively (positron, β+) or negatively (negatron, β-) charged, emitted during beta decay of a radionuclide.
See also: cathode rays.
Synonym(s): beta ray

beta particle

An ionising electron or positron which is emitted from decaying radioactive nuclei during beta decay or beta emission. Beta particles are equal in mass and charge to electrons.
References in periodicals archive ?
According to Peter Rosen at Los Alamos (N.M.) National Laboratory, the finding is an experimental triumph for scientists, who have been searching for this particular decay scheme--the emission of two electrons (which are known historically as beta rays) and two antineutrinos --for 40 years.
TEPCO detected in the leaked water 80 million becquerels per liter of radioactive substances emitting beta rays, such as strontium-90, and admitted that it has not yet identified from which area of the tank the polluted water is escaping.
Tokyo, June 30 ( ANI ): High levels of radioactive substances, including strontium, emitting beta rays have been detected in groundwater taken from a well at the port of the Fukushima No.
After decay the nucleus does not always go to its ground state or least-energy state, and this can have an effect on the energy spectrum of the beta rays that is similar to the effect a small neutrino mass would have.
TEPCO detected in the leaked water 80 million becquerels per liter of radioactive substances emitting beta rays, such as strontium-90, and admitted it has not yet identified from which area of the tank the polluted water is escaping.
Two of the three have been hospitalised due to possible burns caused by beta rays, which can cause major skin damage.
A radioactive substance emitting beta rays was detected, with a reading of 0.15 becquerel per square centimeter, the utility said.
The burns are caused by direct exposure to beta rays, the utility added.