said, "While the traditional detection capabilities of our patented LAAPD technologies ranged from infrared, visible and ultraviolet light, this new product extends our range to include beta particles
For example, the trace contaminant bismuth-214 decays into polonium-214 by emitting a single beta particle
, but the process sometimes dumps enough energy into the bismuth atom to force the ejection of one of the atom's orbital electrons.
In an attempt to settle the question, the California team designed an experiment in which they measured the energy released by beta particles
spit out by decaying carbon-14 atoms embedded in a germanium crystal.
Moe's apparatus, known as a "projection time chamber," allows him to trace the paths of the two beta particles
released during a decay event and to compute their energies.
alpha particles, beta particles
, or gamma rays at the nuclear power plants.
It detects radiation such as alpha particles, beta particles
and gamma rays using the ionization produced in a Geiger--ME-ller tube, which gives its name to the instrument.
The polymer is doped with a phosphor, emitting visible light when irradiated by the beta particles
from the tritium.
Nelson said the facility may have accurate measurements as early as Sunday on the number of airborne alpha and beta particles
, which can be harmful if inhaled or ingested.
Common contaminants that may be present in municipal water, and well water, include fluoride, if more than 4 ppm, arsenic III and V, chlorine if over 4 ppm, chloramines, chromium 6, lead, pesticides, radioactivity as radon gas, radium, uranium, alpha and beta particles
, nitrates, mercury, bacteria, iron and hydrogen sulfide.
are released when a neutron in nuclei turns into a proton, or vice versa.