A material such as light or heavy water or graphite used in a reactor to slow down fast neutrons by collision with lighter nuclei so as to expedite further fission.
(from the article `nuclear reactor`) ...12). Materials that contain atoms of this kindwater, heavy water, beryllium metal and oxide, and graphiteare deliberately incorporated into the ... Yttrium dihydride is used as a moderator in reactors to slow down neutrons. Certain rare earths are also used in shielding materials becau...Found on http://www.britannica.com/eb/a-z/m/106
- any substance used to slow down neutrons in nuclear reactors 2. [n] - someone who presides over a forum or debate 3. [n] - someone who mediates disputes and attempts to avoid violenceFound on http://www.webdictionary.co.uk/definition.php?query=moderator
• (n.) In the University of Oxford, an examiner for moderations; at Cambridge, the superintendant of examinations for degrees; at Dublin, either the first (senior) or second (junior) in rank in an examination for the degree of Bachelor of Arts. • (n.) A mechamical arrangement for regulating motion in a machine, or producing equality of ef...Found on http://thinkexist.com/dictionary/meaning/moderator/
someone who mediates disputes and attempts to avoid violenceFound on http://wordnetweb.princeton.edu/perl/webwn?s=moderator
Dragon 32/64 game covers are listed in this category. ...Found on http://en.wikipedia.org/wiki/Moderator_(debate)
A moderator is an official of an incorporated town who presides over the town meeting, and in some cases, other municipal meetings. In the United States, the area of the country best known for the town meeting form of government is New England. The office of moderator exists in at least Connecticut (Mandell c. 2007), Maine, ...Found on http://en.wikipedia.org/wiki/Moderator_(town_official)
[ Latin : confer French modérateur
One who, or that which, moderates, restrains, or pacifies. Sir W. Raleigh.
« Angling was . . . a moderator
of passions.» Walton. 2.
The officer who presides over an assembly to prese...Found on http://www.encyclo.co.uk/webster/M/86
A material such as light or heavy water or graphite used in a reactor to slow down fast neutrons by collision with lighter nuclei so as to expedite further fissionFound on http://www.encyclo.co.uk/local/20725
A material such as light or heavy water or graphite used in a reactor to slow down fast neutrons so as to expedite further fission.
Found on http://www.encyclo.co.uk/local/20841
A material such as light or heavy water or graphite used in a reactor to slow down fast neutrons so as to expedite further fission.Found on http://www.encyclo.co.uk/local/21076
A material used to slow down the neutrons in a nuclear reactor, thus increasing their chances of being obsorbed by a fissile material.Some of the materials used as moderators are:graphiteheavy waterwaterFound on http://www.diracdelta.co.uk/science/source/m/o/moderator/source.html
A substance such as hydrogen, deuterium, oxygen or paraffin capable of slowing fast nuetrons upon collision.Found on http://www.chemistry-dictionary.com/definition/moderator.php
An arbitrator or mediator. Someone who presides over a debate. On the Internet - a person who presides over a website forum to make sure that rules and guidelines are adhered toFound on http://www.encyclo.co.uk/local/22643
At a forum, someone entrusted by the administrator to help discussions stay productive and within thFound on http://www.superglossary.com/Glossary/Business/Internet_Marketing/
General term for materials used in nuclear reactors to reduce the energy (speed) of Fast Neutrons to that of Thermal (slow) Neutrons . The thermal neutrons are then able to interact and Fission with U-235.Found on http://www.ionactive.co.uk/glossary_atoz.html?s=az&t=m
General term for materials used in nuclear reactors to reduce the energy (speed) of Fast Neutrons to that of Thermal (slow) Neutrons . The thermal neutrons are then able to interact and Fission with U-235.
Found on http://www.ionactive.co.uk/glossary.html
in a computer conference, a person who receives the proposed articles and may accept, modify, or reject themFound on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=732-03-13
In a nuclear fission reactor, the moderator slows fast neutrons down. Slower moving neutrons are more effective at keeping the chain reaction going by causing more uranium nuclei to break apart. Each fission event releases fast neutrons - the moderator is therefore required to slow them downFound on http://www.users.zetnet.co.uk/computing/MainPage/SecDepts/Physics/Resources
In a nuclear reactor, a material such as graphite or heavy water used to reduce the speed of high-energy neutrons. Neutrons produced by nuclear fission are fast-moving and must be slowed to initiate further fission so that nuclear energy continues to be released at a controlled rate. Slow neutrons are much more likely to cause fission in a ...Found on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0016165.html
In the Church of Scotland, the minister chosen to act as president of the annual General Assembly. ...Found on http://www.encyclo.co.uk/local/20688
In the Church of Scotland, the minister chosen to act as president of the annual General AssemblyFound on http://www.talktalk.co.uk/reference/encyclopaedia/hutchinson/m0004871.html
It is a substance that is used to slow down neutrons emitted in a nuclear fission reaction.Found on http://www.vidyagyaan.com/general-knowledge/science/glossary-of-physics-ter
material used to reduce, by scattering collisions and without appreciable capture, the kinetic energy of neutronsFound on http://www.electropedia.org/iev/iev.nsf/display?openform&ievref=393-17-20
Principle of a moderator Credit: European Nuclear Society A substance used in nuclear reactors to reduce the speed of fast neutrons produced by nuclear fission. These substances consist of atoms of light elements, such as deuterium in heavy water, graphite, and beryllium, to which neutrons are...Found on http://www.daviddarling.info/encyclopedia/M/moderator.html
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