Spectrum calculations for neutrons slowing down by elastic collisions

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dc.contributor.authorPollard, JPen_AU
dc.date.accessioned2007-11-22T04:27:56Zen_AU
dc.date.accessioned2010-04-30T04:38:45Zen_AU
dc.date.available2007-11-22T04:27:56Zen_AU
dc.date.available2010-04-30T04:38:45Zen_AU
dc.date.issued1960-11en_AU
dc.description.abstractA method is suggested for obtaining the collision density as a function of lethargy for neutrons slowing down in an infinite homogeneous moderator containing uniformly distributed sources of fission neutrons. The only reactions considered are elastic scattering, spherically symmetric in the centre of mass system and absorption. The solution, which is exact for single element moderators when the only neutron reaction is elastic scattering, extends the well known. Greuling-Goertzel approximation and shows that it is in error by no more than 13 per cent. The method is also exact for a mixture of nuclides, provided the cross section ratios are energy independent, and a useful approximation otherwise.en_AU
dc.identifier.citationPollard, J. P. (1960). Spectrum calculations for neutrons slowing down by elastic collisions. (AAEC/E54). Lucas Heights, NSW: Australian Atomic Energy Commission.en_AU
dc.identifier.govdoc698en_AU
dc.identifier.otherAAEC-E-54en_AU
dc.identifier.placeofpublicationLucas Heights, New South Walesen_AU
dc.identifier.urihttp://apo.ansto.gov.au/dspace/handle/10238/688en_AU
dc.language.isoen_auen_AU
dc.publisherAustralian Atomic Energy Commissionen_AU
dc.subjectNeutronsen_AU
dc.subjectSlowing-downen_AU
dc.subjectCollisionsen_AU
dc.subjectSpectraen_AU
dc.subjectElasticityen_AU
dc.titleSpectrum calculations for neutrons slowing down by elastic collisionsen_AU
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