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Title of Journal: J Radioanal Nucl Chem

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Abbravation: Journal of Radioanalytical and Nuclear Chemistry

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Springer Netherlands

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DOI

10.1016/0165-1633(85)90033-4

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ISSN

1588-2780

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Variation in kSubscript0/Subscript neutron flu

Authors: J D Brockman N J Peters J D Robertson
Publish Date: 2009/07/16
Volume: 282, Issue: 1, Pages: 41-
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Abstract

In January 2006 the beryllium reflector and graphite wedge that contained the k0 INAA irradiation position were replaced at the University of Missouri Research Reactor Prior to replacement the average values of the flux ratio f and the epithermal nonideality factor α were 574 ± 45 and 0039 ± 0012 The values of f and α immediately after the beryllium and graphite wedge replacement were 394 ± 06 and 0021 ± 0002 Subsequent measurements indicate that the neutron spectrum hardened with time possibly due to the buildup of the 6Li atom density to saturation

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