Author/Authors :
You، نويسنده , , H.B. and Yang، نويسنده , , Z.H. and Ye، نويسنده , , Y.L. and Li، نويسنده , , Z.H. and Ge، نويسنده , , Y.C. and Lou، نويسنده , , J.L. and Li، نويسنده , , Q.T. and Xiao، نويسنده , , J. and Qiao، نويسنده , , R. and Tian، نويسنده , , Z.Y. and Sun، نويسنده , , Y.L. and Liu، نويسنده , , H.N. and Chen، نويسنده , , J. and Wu، نويسنده , , J. and Yang، نويسنده , , B. and Yang، نويسنده , , K. and Wang، نويسنده , , J.S. and Yang، نويسنده , , Y.Y. and Ma، نويسنده , , P. and Ma، نويسنده , , J.B. and Jin، نويسنده , , S.L. and Han، نويسنده , , J.L.، نويسنده ,
Abstract :
A Multi-Neutron Correlation Spectrometer (MuNCoS) composed of 80 detector modules was constructed at Peking University. A position resolution of less than 3 cm (FWHM) for a typical long scintillation module was obtained based on cosmic ray tests. A calibration method using an unstable nucleus beam of 11Be, together with the fragment identification by using a zero degree telescope, has been successfully developed. Neutron detection efficiencies of 15(1)% and 17(2)% were achieved for neutron energy intervals of 30–40 MeV and 40–60 MeV, respectively, and at a signal charge threshold of 4 MeVee. The experimentally determined neutron detection efficiencies agree well with the simulation based on the GEANT4 code.
