Study of Neutron Cross Talk Rejection Based on Testing Experiment and Simulation

You Haibo(游海波)); Song Yushou(宋玉收)); Xiao Jun(肖军)); Ye Yanlin(叶沿林))

doi:10.1088/1009-0630/14/6/08

Plasma Science and Technology > 2012 > 14(6): 473-477. > DOI: 10.1088/1009-0630/14/6/08

You Haibo(游海波)), Song Yushou(宋玉收)), Xiao Jun(肖军)), Ye Yanlin(叶沿林)). Study of Neutron Cross Talk Rejection Based on Testing Experiment and Simulation[J]. Plasma Science and Technology, 2012, 14(6): 473-477. DOI: 10.1088/1009-0630/14/6/08

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Study of Neutron Cross Talk Rejection Based on Testing Experiment and Simulation

1) School of Physics and State Key Laboratory of Nuclear Physics and Technology, Peking University, Beijing 100871, China 2) School of Nuclear Science and Technology, Harbin Engineering University, Harbin 150001, China

Funds: supported by the National Basic Research Program of China ( No. 2007CB815002) and the Fundamental Research Funds for the Central Universities(HEUCF101501), and of Harbin Engineering University(002150260713).

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Abstract

Abstract

Experimental data analysis and simulation calculations were performed in order to evaluate the cross-talk rejection performance of a typical neutron detection array. For very closely packed scintillation bars, the CT rejection may rely on the position relation between the two signals. The criteria |Δx|≦15cm and |Δy|≦12cm are currently proposed for a rejection rate higher than 90%. For signals coming from distanced bars, the energy conservation relationship can be applied to reject the CT events with a similar performance. In both cases the results of simulation agree very well with the experimental data, assuring their applicability to other detection systems and physics problems.
- test experiment,
- GEANT4 simulation,
- cross talk,
- neutron detection

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