Method for Measuring Neutron-Absorption Cross Sections by the Effect on the Reactivity of a Chain-Reacting Pile

H. L. Anderson; E. Fermi; A. Wattenberg; G. L. Weil; W. H. Zinn

doi:10.1103/PhysRev.72.16

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Method for Measuring Neutron-Absorption Cross Sections by the Effect on the Reactivity of a Chain-Reacting Pile

H. L. Anderson, E. Fermi, A. Wattenberg, G. L. Weil, and W. H. Zinn

Argonne Laboratory, University of Chicago, Chicago, Illinois

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Phys. Rev. 72, 16 – Published 1 July, 1947

DOI: https://doi.org/10.1103/PhysRev.72.16

Abstract

This paper describes a method for measuring neutron-absorption cross sections based on the following principle: Introduction of a neutron-absorbing substance into a pile decreases the reactivity and in order to keep the power level constant the control rods must be displaced. By proper calibration this displacement may be used as a precision measure of the absorption cross section.

References (1)

E. Bragdon, E. Fermi, J. Marshall, and L. Marshall, Phys. Rev. (to be published)

[c1] E. Bragdon, E. Fermi, J. Marshall, and L. Marshall, Phys. Rev. (to be published)

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Method for Measuring Neutron-Absorption Cross Sections by the Effect on the Reactivity of a Chain-Reacting Pile

Abstract

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