A technique in which a neutron, charged particle, or gamma photon is captured by a stable nuclide to produce a different, radioactive nuclide which is then measured. The technique is specific, highly sensitive, and applicable to almost every element in the periodic table. In neutron activation analysis (NAA), the most …
أكمل القراءة »activation analysis
An analytical technique that can be used to detect most elements when present in a sample in milligram quantities (or less). In neutron activation analysis the sample is exposed to a flux of thermal neutrons in a nuclear reactor. Some of these neutrons are captured by nuclides in the sample …
أكمل القراءة »Structure of the Atom
Each atom is made up of an inner core called the nucleus. – Most of the atom’s mass is located in the relatively small nucleus. – The rest of the atom is comprised of a relatively large region outside the nucleus where the electrons are found. – The atom is …
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