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beta ray
NOUN [PHYSICS.]
1.
a stream of beta particles.
Source: Dictionary.com
beta rays | Define beta rays at Dictionary.com
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en.wikipedia.org/wiki/Beta_particle

A beta particle, sometimes called beta ray, denoted by the lower-case Greek letter beta is a ... Both of these processes contribute to the copious numbers of beta rays and electron antineutrinos produced by fission-reactor fuel rods.

www.physics.isu.edu/radinf/beta.htm

Beta decay is a radioactive process in which an electron is emitted from the nucleus of a radioactive atom, along with an unusual particle called an antineutrino.

en.wikipedia.org/wiki/Beta_decay

In nuclear physics, beta decay is a type of radioactive decay in which a beta ray and a neutrino .... The beta spectrum, or distribution of energy values for the beta particles, is continuous. The total energy of the decay process is divided between  ...

www.passmyexams.co.uk/GCSE/physics/alpha-beta-gamma-rays.html

Radioactivity. Radioactivity is the process in which unstable atomic nuclei spontaneously decompose to form nuclei with a higher stability by the release of  ...

www.mirion.com/introduction-to-radiation-safety/types-of-ionizing-radiation

Radiation comes in a range of forms - from gamma to the well-known X-Ray radiation. Learn more about the role they play & how they interact here.

hyperphysics.phy-astr.gsu.edu/hbase/Nuclear/beta.html

Beta particles are just electrons from the nucleus, the term "beta particle" being an historical term used in the early description of radioactivity. The high energy ...

sciencing.com/uses-beta-rays-8278087.html

Beta rays, also known as beta particles, are one of the three most common forms of radiation produced by radioactive materials; the other two being gamma and ...

www.oasisllc.com/abgx/radioactivity.htm

Atoms are not all stable. The excess energy contained in an unstable atom is released in one of a few basic particles and energetic waves. The Greek alphabet ...