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Neutron spectrometery; response function; water sphere spectrometer.

Neutron energy responses of water sphere spectrometers (WSS) to 30 MeV have been calculated by means of Monte Carlo calculations, using the computer code MCNP4C with ENDF/B-VI.0 neutron cross-section. The calculations have been performed for ${}^3$He detector (typical SP9) placed inside 2, 3, 5, 8, 12 and 18-inch diameter moderating spheres composed of water in aluminum shell. These simulations included a detailed description of the geometry of the system. The newly calculated responses have been compared to polyethylene sphere responses.

Rahim Khabaz¹ Hashem Miri Hakimabad¹

1. Physics Department, School of Sciences, Ferdowsi University of Mashhad, Mashhad, Postal code: 91775-1436, Iran

Published

October 2011

Manuscript received

27 November 2010

Manuscript revised

19 February 2011

Accepted

21 March 2011