Detectors based on single crystal synthetic diamond are well suited for high resolution spectrometry of fast neutrons. Their radiation hardness and ability to operate in extreme conditions make them suitable for neutron plasma diagnostics for the ITER project. The task of plasma diagnostics via high resolution neutron spectrometry requires a good knowledge of the response matrix of the detector within a wide energy range. In this work, the Monte Carlo particle transport code NRESP is used for the calculation of the neutron response functions of diamond detectors in the energy range 7 MeV ≤ E n ≤ 16 MeV. The NRESP code, originally developed at the PhysikalischTechnische Bundesanstalt (PTB) for the calculation of the neutron response functions of liquid scintillation detectors, was adapted for the simulation of the neutron-induced reactions which occur in a diamond detector. The simulated response functions are compared to measurements in quasi-mono-energetic neutron beams performed at the PTB ion accelerator facility (PIAF).
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