Ponentes
Descripción
The sTED detector is the reference scintillator system at the EAR2 n_TOF facility at CERN, playing a central role in high-precision neutron time-of-flight measurements. It has been used to measure numerous isotopes, including$^{79}$Se, $^{94}$Nb, $^{160}$Gd, $^{94,95,96}$Mo, $^{209}$Bi, $^{146}$Nd, and $^{28,29}$Si. To further enhance its performance, additional modules have been added with projects supported by the European Union NextGenerationEU/PRTR funding. A dedicated commissioning campaign was carried out with a total of 27 modules, incorporating 18 new ones.
The experiments included the calibration of each module, optimization of the detector response, and verification under realistic neutron flux conditions representative of typical n_TOF experiments. The new setup was designed to improve detector efficiency by a factor of three and enhance the possibility of performing coincidences between modules, thereby reducing background. Preliminary results would demonstrate both the improvements and limitations of this upgraded configuration.
Additionally, the commissioning campaign provided valuable insights into detector stability, module alignment, and data acquisition optimization. This contribution to the XVII CPAN Days will present the full commissioning procedure, the calibration methods applied, and the early performance results, highlighting the technical achievements and enhancements realized with the new sTED configuration.
Abstract
The sTED detector is the reference scintillator system at the EAR2 n_TOF facility at CERN, playing a central role in high-precision neutron time-of-flight measurements. It has been used to measure numerous isotopes, including 79Se, 94Nb, 160Gd, 94,95,96Mo, 209Bi, 146Nd, and 28,29Si. To further enhance its performance, additional modules have been added with projects supported by the European Union NextGenerationEU/PRTR funding. A dedicated commissioning campaign was carried out with a total of 27 modules, incorporating 18 new ones.
The experiments included the calibration of each module, optimization of the detector response, and verification under realistic neutron flux conditions representative of typical n_TOF experiments. The new setup was designed to improve detector efficiency by a factor of three and enhance the possibility of performing coincidences between modules, thereby reducing background. Preliminary results would demonstrate both the improvements and limitations of this upgraded configuration.
Additionally, the commissioning campaign provided valuable insights into detector stability, module alignment, and data acquisition optimization. This contribution to the XVII CPAN Days will present the full commissioning procedure, the calibration methods applied, and the early performance results, highlighting the technical achievements and enhancements realized with the new sTED configuration.
