دیکشنری تخصصی مهندسی نفت - نسخه آنلاین

n: one of the extremely small particles of an atom that is ejected from a radioactive substance (such as radium or uranium) as it disintegrates. Alpha particles have a positive charge.

n: one of the extremely small particles, sometimes called rays, emitted from the nucleus of a radioactive substance such as radium or uranium as it disintegrates. Beta particles have a negative charge.

an electron emitted with high energy and velocity from a decaying nucleus.

n: one of more than a hundred simple substances that consist of atoms of only one kind and that either singly or in combination make up all matter. For example, the simplest element is hydrogen, and one of the most abundant elements is carbon. Some elements, such as radium and uranium, are radioactive.

abbr: naturally occurring radioactive materials.

a naturally occurring radioactive scale. Usually Barium Sulfate scale with Uranium or Radium atoms substituted into the lattice structure. Can be detected downhole with a gamma ray log.

n: the property possessed by some substances (such as radium, uranium and thorium) of releasing alpha particles, beta particles, or gamma particles as the substance spontaneously disintegrates.

R226, one of the natural isotopes that as a trace element may incorporate into the matrix of naturally forming barium or strontium sulfate scale and make it a very low level radioactive material (NORM scale).