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FU Xin, LI Zongqiang, XU Junkui, LI Wuyuan, SU Youwu, MAO wang, YAN Weiwei, XU Chong, PANG Chengguo. Research and Development of a Neutron Multi-sphere Spectrometer[J]. Nuclear Physics Review, 2016, 33(4): 466-470. doi: 10.11804/NuclPhysRev.33.04.466
Citation: FU Xin, LI Zongqiang, XU Junkui, LI Wuyuan, SU Youwu, MAO wang, YAN Weiwei, XU Chong, PANG Chengguo. Research and Development of a Neutron Multi-sphere Spectrometer[J]. Nuclear Physics Review, 2016, 33(4): 466-470. doi: 10.11804/NuclPhysRev.33.04.466

Research and Development of a Neutron Multi-sphere Spectrometer

doi: 10.11804/NuclPhysRev.33.04.466
Funds:  National Key Foundation for Exploring Scienti c Instrument of China(2011YQ120096)
  • Received Date: 2016-01-11
  • Rev Recd Date: 2016-02-29
  • Publish Date: 2016-12-20
  • Neutron response of Bonner spheres which include pure polyethylene and polyethylene with auxiliary material was calculated with Monte Carlo code MCNPx, the calculated response was used as the input le of U-M-G code for neutronspectrum unfolding. A special screening of ampli cation integrated circuits was developed, which can provides high voltage 900 V working for the SP9 tube, the screening threshold is set to 0.5 V and total magni cation is 200. Neutron energy spectrum of a Pu-Be source were measured with the developed Bonner spheres spectrometer,good agreement was found in the measured result of the spectrum datasolutionand the real spectrum, which indicated that the multi-sphere spectrometer was reliable in the neutron measurement at energy region of Pu-Be neutron source.
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Research and Development of a Neutron Multi-sphere Spectrometer

doi: 10.11804/NuclPhysRev.33.04.466
Funds:  National Key Foundation for Exploring Scienti c Instrument of China(2011YQ120096)

Abstract: Neutron response of Bonner spheres which include pure polyethylene and polyethylene with auxiliary material was calculated with Monte Carlo code MCNPx, the calculated response was used as the input le of U-M-G code for neutronspectrum unfolding. A special screening of ampli cation integrated circuits was developed, which can provides high voltage 900 V working for the SP9 tube, the screening threshold is set to 0.5 V and total magni cation is 200. Neutron energy spectrum of a Pu-Be source were measured with the developed Bonner spheres spectrometer,good agreement was found in the measured result of the spectrum datasolutionand the real spectrum, which indicated that the multi-sphere spectrometer was reliable in the neutron measurement at energy region of Pu-Be neutron source.

FU Xin, LI Zongqiang, XU Junkui, LI Wuyuan, SU Youwu, MAO wang, YAN Weiwei, XU Chong, PANG Chengguo. Research and Development of a Neutron Multi-sphere Spectrometer[J]. Nuclear Physics Review, 2016, 33(4): 466-470. doi: 10.11804/NuclPhysRev.33.04.466
Citation: FU Xin, LI Zongqiang, XU Junkui, LI Wuyuan, SU Youwu, MAO wang, YAN Weiwei, XU Chong, PANG Chengguo. Research and Development of a Neutron Multi-sphere Spectrometer[J]. Nuclear Physics Review, 2016, 33(4): 466-470. doi: 10.11804/NuclPhysRev.33.04.466
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