A radioactive source is a known quantity of a radionuclide which emits ionizing radiation, typically one or more of the radiation types gamma rays, alpha...

of the placement of the radioactive source are interstitial and contact. In the case of interstitial brachytherapy, the sources are placed directly in...

Radioactive decay (also known as nuclear decay, radioactivity, radioactive disintegration, or nuclear disintegration) is the process by which an unstable...

An orphan source is a self-contained radioactive source that is no longer under regulatory control. The United States Nuclear Regulatory Commission definition...

difference in harmfulness to living organisms. A common source of ionizing radiation is radioactive materials that emit α, β, or γ radiation, consisting...

Radioactive contamination, also called radiological pollution, is the deposition of, or presence of radioactive substances on surfaces or within solids...

radiological dispersal device is a radiological weapon that combines radioactive material with conventional explosives. The purpose of the weapon is to...

Radioactive scrap metal is created when radioactive material enters the metal recycling process and contaminates scrap metal. A "lost source accident"...

called the "Radioactive Boy Scout" and the "Nuclear Boy Scout" was an American nuclear radiation enthusiast who built a homemade neutron source at the age...

something Radioactive source, a known quantity of a radionuclide which emits ionizing radiation Sound source, an object emitting sound Voltage source, any...

sources, in which radioactive material is unknowingly kept, sold, or stolen. The Goiânia accident is an example, where a forgotten radioactive source...

cylinder in his pocket, not knowing that it was a strong caesium-137 radioactive source that was released from a container broken by the falling drum. He...

the discovery of X-rays, radioactivity was discovered. By using radioactive sources such as radium, far higher photon energies could be obtained than...

pregnancy. October 21, 1994 – Estonia – Theft of radioactive material in Tammiku. A caesium-137 source was stolen from a waste storage facility by two...

was a radioactive contamination accident that occurred on September 13, 1987, in Goiânia, Goiás, Brazil, after an unsecured radiotherapy source was stolen...

Radioactive sources are used for logging formation parameters. Radioactive tracers, along with the other substances in hydraulic-fracturing fluid, are...

Schrödinger's original formulation, a cat, a flask of poison, and a radioactive source are placed in a sealed box. If an internal radiation monitor such...

Sheriff court fined Schlumberger Oilfield UK £300,000 for losing a radioactive source on the rig floor on the Ensco 101 mobile drilling rig in the North...

irradiating or imaging is known as a gamma source. It is also called a radioactive source, isotope source, or radiation source, though these more general terms...

body to receive a bone marrow transplant. Brachytherapy, in which a radioactive source is placed inside or next to the area requiring treatment, is another...

from a radioactive source, using semiconductor junctions. A common source used is the hydrogen isotope tritium. Unlike most nuclear power sources which...

referred to as the Mayak disaster or Ozyorsk disaster in newer sources, was a radioactive contamination accident that occurred on 29 September 1957 at Mayak...

the radioactive source of the energy for visible light emissions, by detecting predicted gamma-ray line radiation from two of its abundant radioactive nuclei...

Radioactive quackery is quackery that improperly promotes radioactivity as a therapy for illnesses. Unlike radiotherapy, which is the scientifically sound...

method used to acquire a quantitative spectrum measurement. Most radioactive sources produce gamma rays, which are of various energies and intensities...

notable civilian accidents involving radioactive materials or involving ionizing radiation from artificial sources such as x-ray tubes and particle accelerators...

Lost source accidents, also referred to as orphan sources, are incidents in which a radioactive source is lost, stolen or abandoned. The source then might...

their construction due to radioactive decay. The actual dose received per hour would be lower unless physically touching the source, as radiation decreases...

measuring instrument, not the rate of emission from the source of radiation. For radioactive decay measurements it must not be confused with disintegrations...

Alpha particles have a net spin of zero. When produced in standard alpha radioactive decay, alpha particles generally have a kinetic energy of about 5 MeV...