CSNS-WNS C_6D_6谱仪读出电子学系统
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摘要
为了满足我国正在建设的白光中子源(white neutron source,WNS)需求,设计了具有共性化架构的C_6D_6谱仪读出电子学系统。该系统基于波形数字化技术和PXIe平台,实现对γ能谱和中子飞行时间的测量。介绍了系统设计方案,详细阐述了信号调理模块、时间测量、PXIe平台及相关软件的设计与实现,并开展了系统性能测试和联调实验。测量结果表明:该系统能够正确获得测量数据,满足了白光中子源的首批实验需求。
In order to meet the need of white neutron source(WNS)under construction in China,C_6D_6 spectrometer readout electronic system has been designed.The system is based on waveform digitizing technology and PXIe platform to realize the measurement of gamma spectrum and neutron time-of-flight.The system scheme,performance test and function verification are mainly introduced in this paper.The development of signal conditioning module,the design of logic algorithm for time measurement,the implementation of PXIe platform and the related software design are described in detail.Performance test and the whole system debugging experiment are carried out.The measurement results show that the system can correctly obtain the physics measurement data and meet the experimental requirements of WNS.
In order to meet the need of white neutron source(WNS)under construction in China,C_6D_6 spectrometer readout electronic system has been designed.The system is based on waveform digitizing technology and PXIe platform to realize the measurement of gamma spectrum and neutron time-of-flight.The system scheme,performance test and function verification are mainly introduced in this paper.The development of signal conditioning module,the design of logic algorithm for time measurement,the implementation of PXIe platform and the related software design are described in detail.Performance test and the whole system debugging experiment are carried out.The measurement results show that the system can correctly obtain the physics measurement data and meet the experimental requirements of WNS.
引文
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[3]JING H T,TANG J Y,TANG H Q,et al.Studies of backstreaming white neutrons at CSNS[J].Nucl Instrum Methods Phys Res A,2010,621(1/2/3):91-96.
[4]TAGLIENTE G.The n TOF facility at CERN[J].Brazilian Journal of Physics,2015,34(3A):1 033-1 036.
[5]MIHAILESCU L C,BORELLA A,MASSIMI C,et al.Investigations for the use of the fast digitizers with C6D6detectors for radiative capture measurements at GELINA[J].Nucl Instrum Methods Phys Res A,2009,600(2):453-459.
[6]WANG Q,CAO P,ZHANG D L,et al.An prototype of filed waveform digitizer for BaF2detector array at CSNS-WNS[J].IEEE Trans Nucl Sci,2017,64(7):1-6.
[7]HE B,CAO P,ZHANG D L,et al.Clock distributing for BaF2readout electronics at CSNS-WNS[J].Chinese Physics C,2017,41(1):162-166.
[8]张德良.CSNS-WNS BaF2谱仪信号读出方法[D].合肥:中国科学技术大学,2016.(ZHANG De-liang.Signal readout method for CSNS-WNS BaF2spectrometer[D].Hefei:University of Science and Technology of China,2016.)
[9]Texas Instruments.LMH6552datasheet[EB/OL].2016.http://www.ti.com.cn/product/cn/lmh6552.
[10]孙维佳.涂硼MWPC热中子探测器信号读出方法研究[D].合肥:中国科学技术大学,2016.(SUN Wei-jia.Research on readout method of boron-coated MWPC for thermal neutron detection[D].Hefei:University of Science and Technology of China,2016.)
[11]WANG J H,LIU S H,SHEN Q,et al.A fully fledged TDCimplemented in field-programmable gate arrays[J].IEEE Trans Nucl Sci,2010,57(2):446-450.
[12]KALISZ J.Review of methods for time interval measurements with picosecond resolution[J].Metrologia,2004,41(1):17-32.
[2]韦杰.中国散裂中子源简介[J].现代物理知识,2007(6):22-29.(WEI Jie.Introduction of spallation neutron source in China[J].Modern Physics,2007(6):22-29.)
[3]JING H T,TANG J Y,TANG H Q,et al.Studies of backstreaming white neutrons at CSNS[J].Nucl Instrum Methods Phys Res A,2010,621(1/2/3):91-96.
[4]TAGLIENTE G.The n TOF facility at CERN[J].Brazilian Journal of Physics,2015,34(3A):1 033-1 036.
[5]MIHAILESCU L C,BORELLA A,MASSIMI C,et al.Investigations for the use of the fast digitizers with C6D6detectors for radiative capture measurements at GELINA[J].Nucl Instrum Methods Phys Res A,2009,600(2):453-459.
[6]WANG Q,CAO P,ZHANG D L,et al.An prototype of filed waveform digitizer for BaF2detector array at CSNS-WNS[J].IEEE Trans Nucl Sci,2017,64(7):1-6.
[7]HE B,CAO P,ZHANG D L,et al.Clock distributing for BaF2readout electronics at CSNS-WNS[J].Chinese Physics C,2017,41(1):162-166.
[8]张德良.CSNS-WNS BaF2谱仪信号读出方法[D].合肥:中国科学技术大学,2016.(ZHANG De-liang.Signal readout method for CSNS-WNS BaF2spectrometer[D].Hefei:University of Science and Technology of China,2016.)
[9]Texas Instruments.LMH6552datasheet[EB/OL].2016.http://www.ti.com.cn/product/cn/lmh6552.
[10]孙维佳.涂硼MWPC热中子探测器信号读出方法研究[D].合肥:中国科学技术大学,2016.(SUN Wei-jia.Research on readout method of boron-coated MWPC for thermal neutron detection[D].Hefei:University of Science and Technology of China,2016.)
[11]WANG J H,LIU S H,SHEN Q,et al.A fully fledged TDCimplemented in field-programmable gate arrays[J].IEEE Trans Nucl Sci,2010,57(2):446-450.
[12]KALISZ J.Review of methods for time interval measurements with picosecond resolution[J].Metrologia,2004,41(1):17-32.