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Volume 31 Issue 2
Apr.  2010
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REN Yong, MI Deling, WEI Biao, FENG Peng. Power Spectrum Density Analysis System of 252Cf Neutron Signals[J]. Nuclear Power Engineering, 2010, 31(2): 140-144.
Citation: REN Yong, MI Deling, WEI Biao, FENG Peng. Power Spectrum Density Analysis System of 252Cf Neutron Signals[J]. Nuclear Power Engineering, 2010, 31(2): 140-144.

Power Spectrum Density Analysis System of 252Cf Neutron Signals

  • Received Date: 2009-01-04
  • Rev Recd Date: 2009-04-15
  • Available Online: 2025-07-29
  • Publish Date: 2010-04-01
  • The power spectrum density analysis method is incorporated in the analysis of 252Cf fission neutron random signal.An actual spectrum density analytic system for 252Cf neutron signals is constructed,which combines the pulse-time collector and PC processor.The system can on-line acquire the time series data of neutron pulses(3 channels) based on FPGA and DSP,and then implement the data processing,corre-lation calculation,FFT calculation and power spectrum density calculation on PC.A reduced power spectrum algorithm is designed simultaneously.The system can exactly detect the 252Cf neutron pulse and effectively obtain the results of characteristic parameters such as correlation function and power spectrum density,and then provide the effective preparation for the dynamic parameters measurement of 252Cf neutron source or reactor.

     

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