A compact high-energy neutron spectrometer

Abstract

A compact liquid organic neutron spectrometer (CLONS) based on a single NE213 liquid scintillator (5 cm diam. x 5 cm) is described. The spectrometer is designed to measure neutron fluence spectra over the energy range 2-200 MeV and is suitable for use in neutron fields having any type of time structure. Neutron fluence spectra are obtained from measurements of two-parameter distributions (counts versus pulse height and pulse shape) using the Bayesian unfolding code MAXED. Calibration and test measurements made using a pulsed neutron beam with a continuous energy spectrum are described and the application of the spectrometer to radiation dose measurements is discussed.

Digital neutron/gamma discrimination with an organic scintillator at energies between 1 MeV and 100 MeV

“…All three methods produce similar quality of PSD to digital methods previously presented [23,25,12] and have been shown for the first time to produce PSD at higher energies of a quality similar to the state-of-the-art in analogue implementation of PSD [26]. Neutron energy spectra derived from these data (Fig.…”

Evaluation of neutron spectrometer techniques for ITER using synthetic data

“…The GDOS technique has been used for neutron spectrometry at JET [31,32] and in various nuclear and particle physics experiments, see e.g. [33]. The instrument response of GDOSs to a mono-energetic neutron emission is typically box-shaped.…”