Encyclopedia of Sustainability Science and Technology

Living Edition
| Editors: Robert A. Meyers

Ionizing Radiation Detectors

Living reference work entry
DOI: https://doi.org/10.1007/978-1-4939-2493-6_34-3


Alpha particle

A particle emitted during radioactive decay that is comprised of two protons and two neutrons, equivalent to the nucleus of a 4He atom.

Beta particle

An electron or a positron (the positively charged antimatter twin of an electron) emitted during radioactive decay.

Electron volt (eV)

A unit of energy measurement defined by the kinetic energy gained by a free electron when accelerated through a potential difference of 1 V; approximately equivalent to 1.602 × 10−19 J.

Gamma radiation

Highly energetic electromagnetic radiation (energy greater than approximately 100 keV) emitted from the nucleus during radioactive decay.

Ionizing radiation

Particles or light with sufficient energy to remove an electron from an atom or molecule.


A species of atomic nuclei, defined by the number of protons and neutrons present in the nucleus; nuclides are represented by chemical symbol and atomic mass number. Two examples are 12C (carbon-14, 6 protons and 8 neutrons) and 235U...


Alpha Particle Neutron Energy Scintillation Detector Radiation Detection Neutron Detection 
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© Springer Science+Business Media New York 2016

Authors and Affiliations

  1. 1.SAICMcLeanUSA