A dynamically biased neutron detector for background reduction with a fast neutron time-of-flight spectrometer

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Abstract

A neutron time-of-flight system has been developed which has dynamically changing bias levels rather than the single fixed level used by the conventional neutron time-of-flight system. This method of biasing was developed to reduce background in the study of (n, n′) reactions. Additionally, the dynamically biased system has the following features: (1) A neutron detection efficiency which is approximately proportional to the total neutron-proton scattering cross section. (2) A neutron energy response which, in theory, has no lower limit. In practice, however, one may wish to impose a bias just above the photomultiplier noise. (3) Improved time resolution for neutron detection.

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Cited by (6)

Work supported in part by the National Science Foundation.

Present address: University of Windsor, Canada.

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