Speaker
Description
We evaluated the response of an 8-module trans-stilbene scintillator array [1] in detecting (n,n) and (n,n’) reactions in neutron scattering experiments. The measurement was performed at the neutron time-of-flight facility (n_TOF) at CERN in Experimental Area 1 (EAR1) [2], based on prior research at EAR2 [3]. The primary focus is to extend these measurements to the elastic and inelastic channels [2]. In this context, we present results on the n+12C elastic and inelastic scattering channels, and a new ultra-fast detector prototype based on the same readout technology.
We demonstrated the capabilities of trans-Stilbene detectors, according to the excellent n/gamma Pulse-Shape Discrimination, in performing (n,el) cross-section measurements at n_TOF. These technical advancements will establish a benchmark for measuring in the MeV n-energy region, where the critical presence of the gamma-flash, combined with a compressed Time-of-Flight dynamics, makes the measurement quite challenging, thus representing a technical reference for the post-LS3 n_TOF measurement campaign at CERN [4].
References
[1] Proceedings of the HINPw7 conference Ioannina (Greece), EPJ Web of Conferences 304, 01009 (2024)
https://doi.org/10.1051/epjconf/202430401009
[2] n TOF collaboration, n TOF, CERN-INTC-2024-028 / INTC-I-274, available online at https://cds.cern.ch/record/2894839/files/INTC-I-274.pdf
[3] n TOF collaboration, n TOF, CERN-INTC-2023-034 / INTC-I-254, available online at https://cds.cern.ch/record/2856350/files/INTC-I-254.pdf
[4] n TOF collaboration, n TOF, CERN-INTC-2023-072 / INTC-I-266, available online at https://cds.cern.ch/record/2872442/files/INTC-I-266.pdf
