Samarium's less energetic beta particles
should allow the new preparation to be used in a broad range of joints, Straus says--not only the knee but also the finger, elbow, shoulder, and hip.
Moe and his colleagues have spent the last few years looking for a form of radioactivity known as neutrinoless double-beta decay, characterized by the simultaneous emission of two beta particles
, or electrons.
These energetic electrons may behave like beta particles
The numbers represent a count of subatomic beta particles
ejected from the nucleus of radioactive atoms.
Often three things fall under the catch-all term "radiation:" gamma rays, which are high energy photons (light), beta particles
, which are electrons and positrons, alpha particles, which are helium nuclei, and neutrons.
are stronger and can penetrate the skin.
The working group also reaffirmed that internally deposited radionuclides that emit alpha or beta particles
, such as radon, are group 1 carcinogenic agents.
DU is a heavy metal that is also slightly radioactive, emitting alpha and beta particles
and gamma rays.