The neutron energy distribution of the INES beam line, extending from thermal up to nearly 800 MeV, was measured by means of the CYSP-BEAM broad energy range spectrometer. The latter is an innovative type of moderator-based directional neutron spectrometer, based on multiple thermal neutron detectors embedded in a collimated cylindrical structure. Its operation principle is the same as the Bonner sphere spectrometer (BSS), but only one exposure is needed to simultaneously determine all energy components. This paper describes the performance of the spectrometer, from the response of the internal thermal neutron detectors to the spectrum unfolding. This paper opens the way for a new generation of real-time spectrometric devices for quality assurance of neutron beamlines.

Thermal to GeV neutron spectrometry of the INES beam line at ISIS using the CYSP-BEAM spectrometer

Pietropaolo A.
2019

Abstract

The neutron energy distribution of the INES beam line, extending from thermal up to nearly 800 MeV, was measured by means of the CYSP-BEAM broad energy range spectrometer. The latter is an innovative type of moderator-based directional neutron spectrometer, based on multiple thermal neutron detectors embedded in a collimated cylindrical structure. Its operation principle is the same as the Bonner sphere spectrometer (BSS), but only one exposure is needed to simultaneously determine all energy components. This paper describes the performance of the spectrometer, from the response of the internal thermal neutron detectors to the spectrum unfolding. This paper opens the way for a new generation of real-time spectrometric devices for quality assurance of neutron beamlines.
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/20.500.12079/53907
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