Reichhart, L;
Akimov, DY;
Araújo, HM;
Barnes, EJ;
Belov, VA;
Burenkov, AA;
Chepel, V;
... Walker, RJ; + view all
(2012)
Quenching factor for low-energy nuclear recoils in a plastic scintillator.
Physical Review C
, 85
(6)
, Article 065801. 10.1103/PhysRevC.85.065801.
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Abstract
Plastic scintillators are widely used in industry, medicine, and scientific research, including nuclear and particle physics. Although one of their most common applications is in neutron detection, experimental data on their response to low-energy nuclear recoils are scarce. Here, the relative scintillation efficiency for neutron-induced nuclear recoils in a polystyrene-based plastic scintillator (UPS-923A) is presented, exploring recoil energies between 125 and 850 keV. Monte Carlo simulations, incorporating light collection efficiency and energy resolution effects, are used to generate neutron scattering spectra which are matched to observed distributions of scintillation signals to parameterize the energy-dependent quenching factor. At energies above 300 keV the dependence is reasonably described using the semiempirical formulation of Birks and a kB factor of (0.014±0.002) g MeV -1 cm -2 has been determined. Below that energy, the measured quenching factor falls more steeply than predicted by the Birks formalism. © 2012 American Physical Society.
| Type: | Article |
|---|---|
| Title: | Quenching factor for low-energy nuclear recoils in a plastic scintillator |
| Open access status: | An open access version is available from UCL Discovery |
| DOI: | 10.1103/PhysRevC.85.065801 |
| Publisher version: | http://dx.doi.org/10.1103/PhysRevC.85.065801 |
| Language: | English |
| Additional information: | This version is the version of record. For information on re-use, please refer to the publisher’s terms and conditions. |
| UCL classification: | UCL UCL > Provost and Vice Provost Offices > UCL BEAMS UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences UCL > Provost and Vice Provost Offices > UCL BEAMS > Faculty of Maths and Physical Sciences > Dept of Physics and Astronomy |
| URI: | https://discovery.ucl.ac.uk/id/eprint/1352126 |
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