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The ionization method of measuring neutron energy

Published online by Cambridge University Press:  24 October 2008

L. H. Gray
L. H. Gray
Affiliation:
Mount Vernon Hospital and Radium Institute Northwood, Middlesex
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Extract

The absolute measurement of neutron flux density by ionization methods is discussed.

The relation Eυ = JυW ρ between the energy Eυ absorbed per unit volume of a solid medium and the ionization Jυ produced in a gas-filled cavity in the medium, the average energy W expended by the ionizing particles in producing a pair of ions in the gas, and ρ the stopping power of the solid relative to the gas for these particles, is critically examined from the point of view of the measurement of the rate of absorption of neutron energy at any point in a hydrogenous medium. The accuracy attainable is assessed, in so far as it depends on our knowledge of the quantities ρ and W.

Type
Research Article
Information
Mathematical Proceedings of the Cambridge Philosophical Society , Volume 40 , Issue 1 , March 1944 , pp. 72 - 102
Copyright
Copyright © Cambridge Philosophical Society 1944

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