New approach to neutron spectrometry with multi element scintillator

作者：Machrafi R^*; Miller A L; Khan N

来源：Radiation Measurements, 2015, 80: 10-16.

DOI：10.1016/j.radmeas.2015.06.009

• Fast neutron detection
• Gamma detection
• Radiation
• Spectrometry
• Scintillator
• Nuclear reaction
• Monte Carlo simulations

A recently developed scintillator has been investigated for possible use as a dual detector for neutron and gamma spectrometry. A 7Li-enriched version of the scintillator has been investigated. The Cl-35(n,p)S-35 nuclear reaction provides a possibility for fast neutron detection. The sensor has been mounted on a photomultiplier tube controlled with a miniature electronics board and irradiated in different gamma and neutron radiation fields. A series of experiments has been carried out with different gamma energies as well as well with mono-energetic neutrons from a KN Van de Graaff accelerator, and the pulse height spectra have been measured. To clarify different features observed on the response functions of the detector, a Monte Carlo model of the scintillator has been built using MCNP6 and emitted charged particles have been tracked. The simulation data along with the experiments are analyzed, compared and reported.

• 出版日期2015-9