alpha emitting
11Radioactive waste — 2007 ISO radioactivity danger logo, designed in part for long term radioactive waste depositories which might survive into a far future time in which all knowledge of the meaning of present common radiation danger symbols and signs has been lost… …
12cosmos — /koz meuhs, mohs/, n., pl. cosmos, cosmoses for 2, 4. 1. the world or universe regarded as an orderly, harmonious system. 2. a complete, orderly, harmonious system. 3. order; harmony. 4. any composite plant of the genus Cosmos, of tropical… …
13Astatine — (pronEng|ˈæstətiːn) is a radioactive chemical element with the symbol At and atomic number 85. It is the heaviest of the discovered halogens. Characteristics This highly radioactive element has been confirmed by mass spectrometers to behave… …
14actinide element — ▪ chemical element group Introduction any of a series of 15 consecutive chemical elements in the periodic table from actinium to lawrencium (atomic numbers 89–103). As a group they are significant largely because of their radioactivity.… …
15Dirty bomb — A dirty bomb is a speculative radiological weapon that combines radioactive material with conventional explosives. The purpose of the weapon is to contaminate the area around the explosion with radioactive material, hence the attribute dirty .… …
16Naturally occurring radioactive material — Naturally Occurring Radioactive Materials (NORM) and Technologically Enhanced Naturally Occurring Radioactive Materials (TENORM) consist of materials, usually industrial wastes or by products enriched with radioactive elements found in the… …
17Neutron howitzer — The name Neutron Howitzer was given to a neutron source that was developed after it was discovered in the 1930s that alpha radiation that strikes the Beryllium nucleus would release neutrons. The high speed of the alpha is sufficient to overcome… …
18Transuranic waste — is defined as: Waste containing more than 100 nanocuries of alpha emitting transuranic isotopes per gram of waste with half lives greater than 20 years, except for high level radioactive waste...All TRU elements are heavier than uranium, have… …
19Neutron — This article is about the subatomic particle. For other uses, see Neutron (disambiguation). Neutron The quark structure of the neutron. (The color assignment of individual quarks is not important, only that all three colors are present.)… …
20Ununhexium — ununpentium ← ununhexium → ununseptium Po ↑ Uuh ↓ (Uhh) …
