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논문명/저자명
CASTOR KN-12 사용후연료 운반용기의 차폐성능에 관한 연구 = A study on radiation shielding performance of CASTOR KN-12 / 이복형 인기도
발행사항
대전 : 한국과학기술원, 2008.2
청구기호
TM 621.48 -8-20
형태사항
v, 50 p. ; 26 cm
자료실
전자자료
제어번호
KDMT1200843537
주기사항
학위논문(석사) -- 한국과학기술원, 원자력및양자공학, 2008.2
원문
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title page

Abstract

Contents

1. Introduction 9

1.1. Transport Package for Spent Nuclear Fuel 9

1.2. Objectives 11

2. CASTOR KN-12 12

2.1. CASTOR KN-12 12

2.2. Radiation Shielding of CASTOR KN-12 17

3. Source Term 18

3.1. ORIGEN-S and ORIGEN-ARP 18

3.2. Source Term Calculation 19

4. Monte carlo Simulation 20

4.1 MCNPX Code 20

4.2 Modeling of CASTOR KN-12 21

4.3 MCNPX setup 23

5. Results 31

5.1. Measured Result 31

5.2. Simulated Results 33

5.2.1. MCNPX simulation results for real spent fuel assemblies 33

5.2.2. Simulation results for several burn-up and cooling time 39

6. Discussion 51

요약문 (Summary) 53

References 55

감사의 글(Acknowledgement) 56

이력서(Curriculum Vitae) 58

Table 1. Input Parameters for Source Term Calculation 19

Table 2. Material Specification for the CASTOR KN-12 22

Table 3. Conversion Coefficients for the Ambient Dose Equivalent from Photon - the table A.21 of ICRP 74- 27

Table 4. Conversion Coefficients for the Ambient Dose Equivalent from Neutron - the table A.42 of ICRP 74- 28

Table 5. Measured Points 29

Table 6. Characteristics of Spent Nuclear Fuel Assemblies Used in the Radiation Shielding Performance Inspection 31

Table 7. Surface Radiation Dose Rate of CASTOR KN-12 - measured in February 2007, Kori Nuclear Power Plant. 32

Table 8. MCNPX Simulation Results for Real Nuclear Fuel Assemblies 35

Table 9. Surface Radiation Dose Rate for Photon (μSv/hr) 45

Table 10. Surface Radiation Dose Rate for Neutron (μSv/hr) 45

Table 11. Sum of Surface Radiation Dose Rate (μSv/hr) 46

Table 12. Minimum Cooling Time for Variant Burn-up 50

Figure 1. CASTOR KN-12 - General Arrangement Vertical Section 14

Figure 2. CASTOR KN-12 - General Arrangement Cross Section 15

Figure 3. CASTOR KN-12 - Basket Cross Section 16

Figure 4. CASTOR KN-12 Modeling - Basket Cross Section 24

Figure 5. CASTOR KN-12 Modeling - Basket Vertical Section 25

Figure 6. CASTOR KN-12 Modeling - 3D View with SABRINA 26

Figure 7. Measured Points 30

Figure 8. Source Term for Photon 34

Figure 9. Source Term for Neutron 34

Figure 10. Comparison Between Measured Data and Simulation Results (Photon) 37

Figure 11. Comparison Between Measured Data and Simulation Results (Neutron) 37

Figure 12. Radiation Dose Rates Simulated with 32,000 MWd/MTU, 17 Year Cooled 38

Figure 13. Photon Source Term - 32,000 MWd/MTU 40

Figure 14. Photon Source Term - 45,000 MWd/MTU 40

Figure 15. Photon Source Term - 58,000 MWd/MTU 41

Figure 16. Photon Source Terms Comparison for 7 year Cooled Fuels 41

Figure 17. Neutron Source Term - 32,000 MWd/MTU 42

Figure 18. Neutron Source Term - 45,000 MWd/MTU 42

Figure 19. Neutron Source Term - 58,000 MWd/MTU 43

Figure 20. Neutron Source Terms Comparison for 7 Year Cooled Fuels 43

Figure 21. Surface Dose Rates for Point No.1 - dose rate to burn-up 47

Figure 22. Surface Dose Rates for Point No.1 - dose rate to cooling time 47

Figure 23. Surface Dose Rates for Point No.8 - dose rate to burn-up 48

Figure 24. Surface Dose Rates for Point No.8 - dose rate to cooling time 48

Figure 25. Surface Dose Rates for Point No. 12 - dose rate to burn-up 49

Figure 26. Surface Dose Rates for Point No. 12 - dose rate to cooling time 49

Figure 27. Minimum Cooling Time for Variant Burn-up 50

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