Deuterated anthracene spectrometer for 5–30 MeV neutrons

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Abstract

A neutron spectrometer consisting of a deuterated anthracene scintillation crystal and a pulse shape discriminator is described. Forward recoiling deuterons are selected by means of their pulse shape signatures, making use of the direction dependence of the pulse height response and scintillation decay characteristics of the crystal. The line shape of the spectrometer for monoenergetic neutrons is a single peak and the neutron energy resolution (FWHM) varies from 7% at 9 MeV to 3.5% at 22 MeV neutron energy.

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Now at the National Accelerator Centre, Faure, Cape, 7131, South Africa.

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