Machine learning based event classification for the energy-differential measurement of the ${}^{\text{nat}}$C(n,p) and ${}^{\text{nat}}$C(n,d) reactions

Abstract

The paper explores the feasibility of using machine learning techniques, in particular neural networks, for classification of the experimental data from the joint ${}^{\text{nat}}$C(n,p) and ${}^{\text{nat}}$C(n,d) reaction cross section measurement from the neutron time of flight facility n_TOF at CERN. Each relevant $\Delta E$-$E$ pair of strips from two segmented silicon telescopes is treated separately and afforded its own dedicated neural network. An important part of the procedure is a careful preparation of training datasets, based on the raw data from Geant4 simulations. Instead of using these raw data for the training of neural networks, we divide a relevant 3-parameter space into discrete voxels, classify each voxel according to a particle/reaction type and submit these voxels to a training procedure. The classification capabilities of the structurally optimized and trained neural networks are found to be superior to those of the manually selected cuts.

arXiv comment11 pages, 5 figures, 2 tables

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Cited by in corpus (3)

• Measurement of the ${}^{\text{nat}}$C(n,p) and ${}^{\text{nat}}$C(n,d) reactions from n_TOF at CERN
• Machine learning based parametrization of the resolution function for the first experimental area (EAR1) of the n_TOF facility at CERN
• Energy-differential measurement of the ${}^{\mathrm{nat}}$C(n,p) and ${}^{\mathrm{nat}}$C(n,d) reactions at the n_TOF facility at CERN