1. Neutron beam monitoring for time-of-flight facilities with gaseous detectors.
- Author
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Aza, Eleni, Magistris, Matteo, Murtas, Fabrizio, Puddu, Silvia, and Silari, Marco
- Subjects
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NEUTRON beams , *TIME-of-flight spectroscopy , *GAS detectors , *PHOTOMULTIPLIERS , *NEUTRON spectroscopy - Abstract
Triple Gas Electron Multipliers (GEM) for slow and fast neutrons were employed at the n_TOF facility at CERN as online beam imaging monitors and for energy spectra measurements via the time-of-flight technique. The detectors were exposed to the neutron spectrum ranging from thermal to 1 GeV, produced by spallation of 20 GeV/c protons in a lead target with a maximum intensity of 7·10 12 protons per pulse. The spectrum and the 2D count distribution of the neutron beam were measured and compared at two distances from the target, 185 m and 200 m. The detectors showed radiation hardness, linear response and the ability to monitor the beam profile online with high spatial resolution. [ABSTRACT FROM AUTHOR]
- Published
- 2016
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