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Stacked Neutron Guide System for Neutron Beam Research

A. A. van Well

Nuclear Science and Engineering

Volume 110 / Number 1 / January 1992 / Pages 10-15


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A recently developed stacked neutron guide system, installed at the Interfaculty Reactor Institute in Delft, The Netherlands, is described. It comprises two 3-m-long stacks of curved narrow neutron guides. This system is designed to transmit thermal neutrons by means of total reflection and, at the same time, attenuate fast neutrons and gamma radiation strongly. Comparison of calculated and measured flux densities shows an excellent transmission of the thermal neutrons. The measured fast neutron and gamma radiation dose-equivalent rates are consistent with the design values.

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