Author/Authors :
Hu، نويسنده , , Q.Y. and Zhang، نويسنده , , J.H. and Zhang، نويسنده , , D. and Guo، نويسنده , , H.S. and Yang، نويسنده , , G.Z. and Li، نويسنده , , B.J. and Ye، نويسنده , , F. and Si، نويسنده , , F.N. and Liu، نويسنده , , J. and Fu، نويسنده , , Y.C. and Ning، نويسنده , , J.M. and Yang، نويسنده , , J. and Yang، نويسنده , , H.H. and WANG، نويسنده , , W.C.، نويسنده ,
Abstract :
A new long counter has been developed with a flat energy response over a wide range from 1 keV to 15 MeV. It consists of five 3He proportional counter tubes and a number of carefully designed polyethylene moderators. The structure of this detector was determined by careful Monte Carlo simulations. The calculated results show that the efficiency of this counter is uniform from 1 keV neutron energy to 15 MeV. Calibration was performed on an Am–Be source and the accelerator-produced monoenergetic D–D and D–T neutron sources. Fluctuation of the response curve is less than 10% over this energy range.
