@misc{10481/91441,
year = {2024},
month = {1},
url = {https://hdl.handle.net/10481/91441},
abstract = {The neutron time-of-flight facility n_TOF at CERN is a spallation source dedicated to measurements of neutroninduced reaction cross-sections of interest in nuclear technologies, astrophysics, and other applications. Since 2014, Experimental ARea 2 (EAR2) is operational and delivers a neutron fluence of ∼ 4 ⋅ 107 neutrons per nominal proton pulse, which is ∼50 times higher than the one of Experimental ARea 1 (EAR1) of ∼ 8 ⋅ 105 neutrons per pulse. The high neutron flux at EAR2 results in high counting rates in the detectors that challenged the previously existing capture detection systems. For this reason, a Segmented Total Energy Detector (sTED) has been developed to overcome the limitations in the detector’s response, by reducing the active volume per module and by using a photo-multiplier (PMT) optimized for high counting rates. This paper presents the main characteristics of the sTED, including energy and time resolution, response to γ-rays, and provides as well details of the use of the Pulse Height Weighting Technique (PHWT) with this detector. The sTED has been validated to perform neutron-capture cross-section measurements in EAR2 in the neutron energy range from thermal up to at least 400 keV. The detector has already been successfully used in several measurements at n_TOF EAR2.},
organization = {I+D+i grant PGC2018-
096717-B-C21 funded by MCIN/AEI/10.13039/501100011033, by the
European Commission H2020 Framework Programme project SANDA
(Grant agreement ID: 847552)},
organization = {Funding agencies of the n_TOF participating institutions},
publisher = {Elsevier},
keywords = {Neutron capture},
keywords = {Scintillation detectors},
keywords = {Monte Carlo simulation},
keywords = {Pulse Height Weighting Technique (PHWT)},
title = {A Segmented Total Energy Detector (sTED) optimized for (n, γ) cross-section measurements at n_TOF EAR2},
doi = {10.1016/j.radphyschem.2024.111525},
author = {Alcayne, V. and García Infantes, Francisco and n_TOF Collaboration, /},
}