Abstract
The neutron balance equation in the age approximation is proposed as an additional condition imposing restrictions on form of the neutron spectrum for a unique solution of the improper problem of reconstructing a neutron spectrum. The solution is not limited to the range of application of the age approximation and can be extended to a medium containing water. The geometric parameter and a number of other quantities that appear in the expression for the neutron spectrum are determined from the condition for best agreement between the measured and calculated activation integrals.
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References
S. M. Feinberg et al., Theory of Nuclear Reactors. Vol. 1 [in Russian], Atomizdat, Moscow (1978).
MI 1393-86. Methodological Instructions. GSI (State System of Assurance of Traceability). Characteristics of Reactor Neutron Fields. Neutron Activation Measurement Procedure [in Russian].
Additional information
Translated from Izmeritel'naya Tekhnika, No. 2, pp. 54–55, February, 1995.
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Antropov, S.Y., Yaryna, V.P. Inclusion of the properties of the moderator when reconstructing the spectrum from activation detector readings. Meas Tech 38, 224–226 (1995). https://doi.org/10.1007/BF00979640
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DOI: https://doi.org/10.1007/BF00979640