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Characteristics of low energy accelerator neutron sources

J. Csikai, Ágnes Grallert, László Oláh, S.M. Qaim

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Abstract

Energy and fluence monitors are recommended for D-D and D-T neutrons. Neutron flux density spectra were determined for extended samples using the foil activation and physical integration methods. The unfolding method was checked by TOF and pulse height response spectrometers. Signal-to-background ratio was optimized for D-D gas cell neutron sources. Results show that the contribution of Coulomb breakup neutrons from the beam stop materials to the background is dominant at incident deuteron energies below 10 MeV.

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What this paper is about

Energy and fluence monitors are recommended for D-D and D-T neutrons. Neutron flux density spectra were determined for extended samples using the foil activation and physical integration methods. The unfolding method was checked by TOF and pulse height response spectrometers. Signal-to-background ratio was optimized for D-D gas cell neutron sources. Results show that the contribution of Coulomb breakup neutrons from the beam stop materials to the background is dominant at incident deuteron energies below 10 MeV.

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Available abstract

Energy and fluence monitors are recommended for D-D and D-T neutrons. Neutron flux density spectra were determined for extended samples using the foil activation and physical integration methods. The unfolding method was checked by TOF and pulse height response spectrometers. Signal-to-background ratio was optimized for D-D gas cell neutron sources. Results show that the contribution of Coulomb breakup neutrons from the beam stop materials to the background is dominant at incident deuteron energies below 10 MeV.

Key concepts: Neutron flux, Neutron, Nuclear physics, Deuterium, Spectrometer, Physics, Neutron cross section, Neutron source

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