beta radiation
beta ray
electron radiation

It was necessary to coordinate the discharge of so many batteries in one powerful jolt, a mustering of beta rays.

For historical reasons, electrons are also known as beta rays.

The original Metroid establishes that exposure to beta rays would cause them to multiply very quickly.

The beta rays were emitted from a fine platinum wire coated with radium active-deposit.

Each decay produces a beta ray (an electron) that can be measured with the appropriate instrumentation.

The beta particles emitted are a form of ionizing radiation also known as beta rays.

The beta particles emitted are a form of ionizing radiation sometimes called beta rays.

When it decays it emits a beta ray and forms protactinium-231.

Neutrons, gamma particles, beta rays and even electrons have mass.

He coined the terms alpha ray and beta ray in 1899 to describe the two distinct types of radiation.