Photoneutron measurements in the GDR region at ELI-NP

Krzysiek, M.; Açıksöz, E.; Balabanski, D. L.; Camera, F.; Capponi, L.; Ciocan, G.; Ghiţă, D.; Utsunomiya, H.; Варламов, В.В.

doi:10.1063/1.5091639

Cited by 3 publications

(1 citation statement)

References 25 publications

(30 reference statements)

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One of the projects being constructed under the ELI-NP umbrella is ELI Gamma Above Neutron Threshold (ELIGANT). ELIGANT, especially the ELIGANT Gamma Neutron (ELIGANT-GN) [2][3][4] setup, will focus on competing γ-ray and neutron emission in photonuclear reactions. The goal of ELIGANT-GN is the detailed study of the high-energy photo-excitation response of atomic nuclei with focus on the giant dipole resonance (GDR), pygmy dipole resonance (PDR), and similar structures through simultaneous measurements of neutron and γ-ray decay-channels.…”

Section: Introductionmentioning

confidence: 99%

Unfolding of sparse high-energy γ-ray spectra from LaBr₃:Ce detectors

et al. 2019

Self Cite

View full text Add to dashboard Cite

A : Here we report on the characterization of one of the large-volume LaBr 3 :Ce detectors for the ELIGANT project at ELI-NP. The main focus of this work is the response function for high-energy γ rays of such detectors. In particular, we compare a selection of unfolding methods to resolve small structures in γ-ray spectra with high-energies. Three methods have been compared using γ-ray spectra with energies up to 12 MeV obtained in an experiment at the 3 MV Tandetron™ facility at IFIN-HH. The results show that the iterative unfolding approach gives the best qualitative reproduction of the emitted γ-ray spectrum. Furthermore, the correlation fluctuations in highenergy regime from the iterative method are two orders of magnitude smaller than when using the matrix inversion approach with second derivative regularization. In addition, the iterative method is computationally faster as it does not contain large matrix inversions. The matrix inversion method does, however, give more consistent results over the full energy range and in the low-statistics limit. Our conclusion is that the performance of the iterative approach makes it well suitable for semi-online analysis of experimental data. These results will be important, both for experiments with the ELIGANT setup, and for on-line diagnostics of the energy spread of the γ-ray beam which is under implementation at ELI-NP. K: Gamma detectors, Analysis and statistical methods 1Corresponding author.

show abstract

Section: Introductionmentioning

confidence: 99%