A Bonner Sphere Spectrometer with extended response matrix
Bonner sphere
Neutron time-of-flight scattering
Nuclear data
DOI:
10.1016/j.nima.2010.04.033
Publication Date:
2010-04-24T08:25:36Z
AUTHORS (4)
ABSTRACT
Abstract This paper describes the design, calibration and applications at high-energy accelerators of an extended-range Bonner Sphere neutron Spectrometer (BSS). The BSS was designed by the FLUKA Monte Carlo code, investigating several combinations of materials and diameters of the moderators for the high-energy channels. The system was calibrated at PTB in Braunschweig, Germany, using monoenergetic neutron beams in the energy range 144 keV–19 MeV. It was subsequently tested with Am–Be source neutrons and in the simulated workplace neutron field at CERF (the CERN-EU high-energy reference field facility). Since 2002, it has been employed for neutron spectral measurements around CERN accelerators.
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