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扩展型长中子计数器的设计及开发研究

摘要第5-7页
ABSTRACT第7-8页
Chapter 1 Introduction and motivation第15-23页
    1.1 Introduction of neutron measurements第15-16页
    1.2 Statement of the problem第16-18页
    1.3 Motivation of the study第18-19页
    1.4 Objective of this research第19页
        1.4.1 General objective第19页
        1.4.2 Specific objectives第19页
    1.5 Significance of the study第19-20页
    1.6 Outline of this thesis第20-23页
Chapter 2 Long counter detector第23-39页
    2.1 Introduction of detection status第23页
    2.2 Advantages of long counter第23-24页
    2.3 Applications of long counter第24-25页
    2.4 Limitations of long counter第25-26页
    2.5 Geometric part of long counter第26-33页
        2.5.1 Neutron moderator第26-30页
        2.5.2 Neutron absorber第30-31页
        2.5.3 Air holes or annular trough第31-32页
        2.5.4 Cadmium cover第32-33页
        2.5.5 Aluminum outer cover第33页
    2.6 Proportional counter ~3He or BF_3第33-36页
        2.6.1 The BF_3 proportional counter第34-35页
        2.6.2 ~3He proportional counter第35-36页
    2.7 Electronic part of long counter第36-39页
Chapter 3 Monte Carlo method第39-49页
    3.1 Introduction of SuperMC code第40-41页
    3.2 Application of SuperMC第41页
    3.3 Main Features of SuperMC code第41-44页
        3.3.1 Automatic Geometrical modeling第41-42页
        3.3.2 Results and process visualization第42-43页
        3.3.3 Cloud computing framework第43-44页
    3.4 Methodology of SuperMC simulation code第44-45页
    3.5 Validation and verification of SuperMC code第45页
    3.6 Scattering treatment in SuperMC第45-46页
    3.7 Nuclear data library第46页
    3.8 Variance reduction techniques第46-49页
Chapter 4 Application of SuperMC on long counter design第49-85页
    4.1 Introduction第49-50页
    4.2 Design of an extended range long counter第50-67页
        4.2.1 Introduction第50-51页
        4.2.2 He counter description第51-52页
        4.2.3 Geometry of initial design第52-53页
        4.2.4 Simulation process第53-54页
        4.2.5 Response function of long counter第54-57页
        4.2.6 Inserting metal target inside inner moderator第57-59页
        4.2.7 Lead and Chromium metal target第59-67页
        4.2.8 Conclusion第67页
    4.3 Design of reduced size long counter第67-78页
        4.3.1 Introduction第67-68页
        4.3.2 Theory of neutron detection using long counter第68-69页
        4.3.3 Materials and Methods第69-71页
        4.3.4 Results and Discussion第71-77页
        4.3.5 Conclusion第77-78页
    4.4 Design of response improved long counter第78-85页
        4.4.1 Introduction第78-79页
        4.4.2 Details of the geometry第79-80页
        4.4.3 Calculation of the response function第80-83页
        4.4.4 Neutron scattering第83-84页
        4.4.5 Conclusion第84-85页
Chapter 5 Development and calibration of FDS-LC第85-105页
    5.1 Introduction第85-86页
    5.2 Material and method第86-93页
        5.2.1 Geometry of FDS-LC第86-87页
        5.2.2 Central thermal detector第87-88页
        5.2.3 Electronics and data acquisition system of FDS-LC第88-93页
    5.3 Experimental arrangements第93-95页
        5.3.1 ~(241)Am-Be and 14 MeV D-T neutron sources第93页
        5.3.2 Irradiation Hall第93-94页
        5.3.3 Correction of scattered neutrons第94-95页
    5.4 Results and Discussion第95-102页
        5.4.1 Validation of the response function of FDS-LC第95-96页
        5.4.2 Validation of the effective center第96-99页
        5.4.3 Calibration of FDS-LC第99-101页
        5.4.4 Measurements of angular response function第101-102页
    5.5 Uncertainty analysis第102-103页
    5.6 Conclusion第103-105页
Chapter 6 Conclusion and Recommendations第105-111页
    6.1 Conclusion第105-109页
    6.2 Recommendations第109-111页
References第111-115页
Acknowledgement第115-117页
List of Publications第117页

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