from The American Heritage® Dictionary of the English Language, 4th Edition
- n. An electrically neutral subatomic particle in the baryon family, having a mass 1,839 times that of the electron, stable when bound in an atomic nucleus, and having a mean lifetime of approximately 1.0 × 103 seconds as a free particle. It and the proton form nearly the entire mass of atomic nuclei. See Table at subatomic particle.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A subatomic particle forming part of the nucleus of an atom and having no charge; it is a combination of an up quark and two down quarks
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an elementary particle with 0 charge and mass about equal to a proton; enters into the structure of the atomic nucleus
Cosmo – A long-term neutron measurement project, under the tutelage of the late Dr. Jack Lockwood and Dr. Jim Ryan of UNH's Physics Department, Institute for the Study of Earth, Oceans, and Space.
Apart from any surface contamination of the plant, the remaining radioactivity comes from "activation products" such as steel components that have been exposed to long-term neutron irradiation.
There were many problems in neutron diffusion such as finding the critical mass that required more careful formulations than had been carried out in the earliest projections.
USEEM: With the name neutron Jack, as in a neutron bomb, buildings are left standing but the people are gone.
About half of them found their careers in neutron scattering.
During a hectic period between 1955 and 1960 Brockhouse's pioneering work was without parallel within neutron spectroscopy.
With the crystal set at a suitable angle, a certain neutron wavelength can be selected.
On the other hand, if a neutron is emitted the product of the reaction is not a known atom.
The neutron is a heavy particle without any electric charge and of the same weight as the nucleus of an atom of hydrogen.
The existence of the neutron is however only a recent discovery.
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