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A multiwire chamber system for measurements of neutron spectra

F.P. Brady, T. D. Ford, G.A. Needham, J. L. Romero, C.M. Castaneda, M. L. Webb

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Abstract

Abstract A new type of detector for measuring neutron flux and energy over a wide range of angles and energies is being developed. Measurements of neutron elastic and inelastic scattering as well as neutron energy continua are possible. Time-of-flight is not used for measuring outgoing neutron energy, and so for continuum measurements this system has some distinct advantages over conventional neutron detectors. Neutron energy measurement is carried out by measuring the energy and angle of the recoil proton produced by the neutron in a CH2 converter. Spectra from 7Li(p, n)7Be at 62 MeV and 40Ca(n, n′χ) at 65 MeV are presented.

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Abstract A new type of detector for measuring neutron flux and energy over a wide range of angles and energies is being developed. Measurements of neutron elastic and inelastic scattering as well as neutron energy continua are possible. Time-of-flight is not used for measuring outgoing neutron energy, and so for continuum measurements this system has some distinct advantages over conventional neutron detectors. Neutron energy measurement is carried out by measuring the energy and angle of the recoil proton produced by the neutron in a CH2 converter. Spectra from 7Li(p, n)7Be at 62 MeV and 40Ca(n, n′χ) at 65 MeV are presented.

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Available abstract

Abstract A new type of detector for measuring neutron flux and energy over a wide range of angles and energies is being developed. Measurements of neutron elastic and inelastic scattering as well as neutron energy continua are possible. Time-of-flight is not used for measuring outgoing neutron energy, and so for continuum measurements this system has some distinct advantages over conventional neutron detectors. Neutron energy measurement is carried out by measuring the energy and angle of the recoil proton produced by the neutron in a CH2 converter. Spectra from 7Li(p, n)7Be at 62 MeV and 40Ca(n, n′χ) at 65 MeV are presented.

Key concepts: Bonner sphere, Neutron, Neutron time-of-flight scattering, Nuclear physics, Physics, Neutron stimulated emission computed tomography, Neutron cross section, Neutron detection

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