Title of article
ATLAS MDT neutron sensitivity measurement and modeling
Author/Authors
Ahlen، نويسنده , , S and Hu، نويسنده , , G and Osborne، نويسنده , , D and Schulz، نويسنده , , A and Shank، نويسنده , , J and Xu، نويسنده , , Q and Zhou، نويسنده , , B، نويسنده ,
Pages
12
From page
446
To page
457
Abstract
The sensitivity of the ATLAS precision muon detector element, the Monitored Drift Tube (MDT), to fast neutrons has been measured using a 5.5 MeV Van de Graaff accelerator. The major mechanism of neutron-induced signals in the drift tubes is the elastic collisions between the neutrons and the gas nuclei. The recoil nuclei lose kinetic energy in the gas and produce the signals. By measuring the ATLAS drift tube neutron-induced signal rate and the total neutron flux, the MDT neutron signal sensitivities were determined for different drift gas mixtures and for different neutron beam energies. We also developed a sophisticated simulation model to calculate the neutron-induced signal rate and signal spectrum for ATLAS MDT operation configurations. The calculations agree with the measurements very well. This model can be used to calculate the neutron sensitivities for different gaseous detectors and for neutron energies above those available to this experiment.
Keywords
Muon Spectrometer , Neutron sensitivity , Energy loss and stopping power
Journal title
Astroparticle Physics
Record number
2021972
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