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Monte Carlo simulations and n-p differential scattering data measured with Proton Recoil Telescopes

Terranova, N.*; Aberle, O.*; Alcayne, V.*; 木村 敦   ; 他125名*

Terranova, N.*; Aberle, O.*; Alcayne, V.*; Kimura, Atsushi; 125 of others*

The $$^{235}$$U(n,f) cross section from 20 MeV up to about 1 GeV has been measured relative to the $$^1$$H(n,n)$$^1$$H reaction. The neutron flux impinging on the $$^{235}$$U sample has been obtained by detecting recoil protons originating from n-p scattering in a C$$_2$$H$$_4$$ sample. Two Proton Recoil Telescopes (PRT), consisting of several layers of solid-state detectors and fast plastic scintillators, have been set at proton scattering angles of 25.07$$^{circ}$$ and 20.32$$^{circ}$$. Extensive Monte Carlo simulations were performed to characterize proton transport through the PRTs. In this work we compare measured data collected with the PRTs with a full Monte Carlo simulation based on the Geant-4 toolkit.

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