Definitions
from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun A nuclear reaction in which many particles are ejected from an atomic nucleus by incident particles of sufficiently high energy.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun nuclear physics A
nuclear reaction in which anucleus fragments into manynucleons . - noun
Fragmentation due tostress orimpact .
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun (physics) a nuclear reaction in which a bombarded nucleus breaks up into many particles
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
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Examples
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Deuterium would be annihilated requiring the present abundance to have been produced at some later stage, such as spallation in shocks around the hypernovae of PopIII stars.
Dark Matter: Still Existing Sean 2007
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Deuterium would be annihilated requiring the present abundance to have been produced at some later stage, such as spallation in shocks around the hypernovae of PopIII stars.
Dark Matter: Still Existing Sean 2007
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Properly dispersed in the mesosphere, 1,000 pounds of Carbon Deoxidizer is enough to remove approximately two billion tons of carbon dioxide gas from the atmosphere before the Carbon Deoxidizer molecules are themselves destroyed by cosmic ray spallation.
365 tomorrows » Collaboration : A New Free Flash Fiction SciFi Story Every Day 2010
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I didn't miss your comment on spallation, I ignored it.
SDO On Station Transmitting First Data as Solar Science Payloads Open Today | Universe Today 2010
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I.e. spallation being stated as fusion-based nucleosynthesis, when it is clearly not.
SDO On Station Transmitting First Data as Solar Science Payloads Open Today | Universe Today 2010
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Surely you would have done something on spallation in C13/C14 production and in the basics of atomic-level structures in both nuclear or physical chemistry.
SDO On Station Transmitting First Data as Solar Science Payloads Open Today | Universe Today 2010
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He actually believes that ALL nucleosynthesis (fusion and spallation) occurs in flares and the magnetic / electric fields either on the photosphere, below the surface of the photosphere, and in flares. (just ask and see the responses of his EU/PC mates sorley (avatared sometimes as Tim Erney) and Anaconda.)
SDO On Station Transmitting First Data as Solar Science Payloads Open Today | Universe Today 2010
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The capability of high-current, high-energy accelerators to produce neutrons by spallation from heavy elements has been used in the structural research of such materials.
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A 1000 MeV beam will create 20-30 spallation neutrons per proton.
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In this, up to ten percent of the neutrons could come from the spallation, though it would normally be less, even where actinide incineration is the main objective.
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