%0 Journal Article
%T A Measuring System for Time of Flight Spectrum of Neutron Based on Pulse Time Sequences Detection
%A Yong Ren
%A Peng Feng
%A Fan Yang
%A Jiansheng Li
%J Applied Physics Frontier
%D 2013
%I Ivy Publisher
%X To measure the time of flight (TOF) spectrum for the 252Cf fission neutron, a TOF measuring system based on the detected time sequences of neutron pulse has been proposed and set up. A 252Cf fast ionization chamber combined with traditional electronic circuit is applied in the system to form the neutron flight pulse signals. It can not only detect the pulse sequence on-line with 1 nanosecond precision, but also realize time-digital-convertion simultaneously. The cross correlation function is to calculate the measured spectrum and the numerical statistics of the flight time of neutron and ¦Ã photons are sent to PC and obtained through data processing. Meanwhile, the timing precision of the system can be judged by the ¦Ã-shape. The distinguishing neutron vs. ¦Ã-photons (n-¦Ã) can also be achieved by setting a delaying factor. Experimental results show that the proposed system can accurately obtain the TOF spectrum whose precision is better than that of the traditional measuring system.
%K 252Cf Source Neutron
%K TOF Spectrum
%K Nanosecond Precision
%K Pulse Sequences Detecting
%K Correlation Function
%U http://www.ivypub.org/apf/papersub/Global/DownloadService.aspx?PARAMS=SUReMjY2Mg_0_0