ML18127B737
| ML18127B737 | |
| Person / Time | |
|---|---|
| Site: | 07109215 |
| Issue date: | 05/07/2018 |
| From: | Neutron Products |
| To: | Office of Nuclear Material Safety and Safeguards |
| Shared Package | |
| ML18127B734 | List: |
| References | |
| Download: ML18127B737 (4) | |
Text
Table of Contents
- 1.
GENERAL INFORMATION.............................................................................................................. 1-1 1.1 Introduction..................................................................................................................... 1-1 1.2 Packaging Description...................................................................................................... 1-1 1.2.2 Contents of Packaging......................................................................................... 1-3 1.2.2 Contents of Packaging......................................................................................... 1-3 1.2.3 Special Requirements for Plutonium.................................................................. 1-3 1.2.4 Operational Features.......................................................................................... 1-3 1.2.4 Operational Features.......................................................................................... 1-3 1.3 Appendix.......................................................................................................................... 1-7 1.3.1 Shipping Transfer Cask, Model S/TC Mkll........................................................... 1-7 1.3.2 Overpack............................................................................................................. 1-7
- 2.
STRUCTURAL EVALUATION.......................................................................................................... 2-1 2.1 Description of Structural Design...................................................................................... 2-1 2.1.1 Discussion............................................................................................................ 2-1 2.1.2 Design Criteria..................................................................................................... 2-5 2.1.3 Weights and Center of Gravity............................................................................ 2-6 2.2 Materials.......................................................................................................................... 2-9 2.2.1 Mechanical Properties of Materials.................................................................... 2-9 2.2.2 Chemical and Galvanic Reactions...................................................................... 2-14 2.2.3 Effects of Radiation on Materials...................................................................... 2-14 2.3 Fabrication and Examination......................................................................................... 2-15 2.3.1 Fabrication........................................................................................................ 2-15 2.3.2 Examination....................................................................................................... 2-15 2.4 General Standards for All Packages............................................................................... 2-16 2.4.1 Minimum Package Size...................................................................................... 2-16 2.4.2 Tamper-Indicating Feature................................................................................ 2-16 2.4.3 Positive Closure................................................................................................. 2-16 2.5 Lifting and Tie-Down Standards..................................................................................... 2-17 2.5.1 Lifting Devices................................................................................................... 2-17 2.5.2 Tie Down Devices.............................................................................................. 2-17 2.6 Normal Conditions of Transport.................................................................................... 2-19 2.6.1 Heat................................................................................................................... 2-19 2.6.1.1 Summary of Pressures and Temperatures........................................... 2-19 2.6.1.2 Differential Thermal Expansion............................................................ 2-19 2.6.1.3 Stress Calculations............................................................................... 2-21 2.6.1.4 Comparison with Allowable Stresses................................................... 2-22 2.6.2 Cold................................................................................................................... 2-25 2.6.3 Pressure............................................................................................................. 2-25 2.6.4 Increased External Pressure.............................................................................. 2-25 2.6.5 Vibration............................................................................................................ 2-26 2.6.6 Water Spray....................................................................................................... 2-26 2.6.7 Free Drop........................................................................................................... 2-26 2.6.8 Corner Drop....................................................................................................... 2-26 2.6.9 Compression...................................................................................................... 2-26 2.6.10 Penetration....................................................................................................... 2-27
2.7 Hypothetical Accident Conditions.................................................................................. 2-29 2.7.1 Free Drop........................................................................................................... 2-31 2.7.1.1 End Drop............................................................................................... 2-32 2.7.1.2 Side Drop.............................................................................................. 2-34 2.7.1.3 Corner Drop.......................................................................................... 2-35 2.7.1.4 Oblique Drop........................................................................................ 2-35 2.7.1.5 Summary of Results............................................................................. 2-35 2.7.2 Crush................................................................................................................. 2-36
- 2. 7.3 Puncture............................................................................................................ 2-36 2.7.4 Thermal............................................................................................................. 2-38 2.7.5 Immersion - Fissile Material............................................................................. 2-38 2.7.6 Immersion -All Packages.................................................................................. 2-38 2.7.7 Deep Water Immersion Test............................................................................. 2-38 2.7.8 Summary of Damage......................................................................................... 2-38 2.8 Accident Conditions for Air Transport of Plutonium...................................................... 2-39 2.9 Accident Conditions for Fissile Material Packages for Air Transport............................. 2-39 2.10 Special Form................................................................................................................... 2-39 2.11 Fuel Rods........................................................................................................................ 2-39
- 3.
THERMAL EVALUATION................................................................................................................ 3-1 3.1 Description of Thermal Design......................................................................................... 3-1 3.1.1 Design Features................................................................................................... 3-1 3.1.2 Content's Decay Heat.......................................................................................... 3-1 3.1.3 Summary Tables of Temperatures...................................................................... 3-2 3.1.4 Summary Tables of Maximum Pressures............................................................ 3-5 3.2 Material Properties and Component Specifications........................................................ 3-5 3.2.1 Material Properties............................................................................................. 3-5 3.2.1 Technical Specification of Components.............................................................. 3-7 3.3 Thermal Evaluation under Normal Conditions of Transport............................................ 3-7 3.3.1 Heat and Cold...................................................................................................... 3-7 3.3.1.1 Analytical Model.................................................................................... 3-7 3.3.1.2 Test Model............................................................................................. 3-7 3.3.1.3 Maximum Temperatures....................................................................... 3-8 3.3.1.4 Minimum Temperatures........................................................................ 3-8 3.3.1.5 Maximum Thermal Stresses................................................................... 3-8 3.3.2 Maximum Normal Operation Pressure............................................................... 3-9 3.3.3 Evaluation of Package Performance for Normal Conditions of Transport.......... 3-9 3.4 Thermal Evaluation under Hypothetical Accident Conditions......................................... 3-9 3.4.1 Initial Conditions................................................................................................. 3-9 3.4.2 Fire Test conditions........................................................................................... 3-10 3.4.3 Maximum Temperatures and Pressure............................................................. 3-11 3.4.3.1 Analytical Model.................................................................................. 3-11 3.4.3.2 Test Model........................................................................................... 3-12 3.4.3.3 Package Temperatures......................................................................... 3-12 3.4.4 Maximum Internal Pressure.............................................................................. 3-14 3.4.5 Maximum Thermal Stresses.............................................................................. 3-14 3.4.6 Evaluation of Package Performance for the Hypothetical Accident Thermal Conditions........................................................................................................ 3-14 3.5 Appendix........................................................................................................................ 3-15 ii
3.5.1 Analytical Model............................................................................................... 3-16 3.5.2 Summary of lnsolation Tests............................................................................. 3-21 3.5.3 Peak Temperature Condition for Normal Transport......................................... 3-25 3.5.4 Maximum S/TC Internal Pressure..................................................................... 3-28 3.5.5 Maximum thermal Stress Temperatures.......................................................... 3-29 3.5.6 Hypothetical Accident-Fire Tests.................................................................... 3-31
- 4.
CONTAINMENT............................................................................................................................. 4-1 4.1 Description of the Containment System..........................................................................4-1 4.1.1 Containment Vessel............................................................................................ 4-1 4.1.2 Containment Penetrations..................................................................................4-1 4.1.3 Seals and Welds.................................................................................................. 4-1 4.1.4 Closure................................................................................................................ 4-5 4.2 Containment under Normal Conditions of Transport......................................................4-5 4.2.1 Release of Radioactive Material.......................................................................... 4-5 4.2.2 Pressurization of Containment Vessel................................................................4-5 4.2.3 Coolant................................................................................................................ 4-5 4.2.4 Coolant Loss........................................................................................................ 4-5 4.3 Containment under Hypothetical Accident Conditions...................................................4-6 4.3.1 Fission Gas Products............................................................................................ 4-6 4.3.2 Release of Contents............................................................................................ 4-6 4.4 Leakage Rate Tests for Type B Packages.......................................................................... 4-6 4.5 Appendix.......................................................................................................................... 4-6
- 5.
SHIELDING EVALUATION.............................................................................................................. 5-1 5.1 Description of the Shielding Design................................................................................. 5-1 5.1.1 Design Features................................................................................................... 5-1 5.1.2 Summary Table of Maximum Radiation Levels................................................... 5-3 5.2 Source Specification......................................................................................................... 5-4 5.2.1 Gamma Source.................................................................................................... 5-4 5.2.1 Neutron Source................................................................................................... 5-4 5.3 Shielding Model................................................................................................................ 5-5 5.3.1 Configuration of Source and Shielding................................................................ 5-5 5.3.2 Material Properties............................................................................................. 5-7 5.4 Shielding Evaluation......................................................................................................... 5-7 5.4.1 Methods.............................................................................................................. 5-7 5.4.1.1 Radial Gamma Attenuation.................................................................... 5-9 5.4.1.2 Axial Gamma Attenuation.................................................................... 5-14 5.4.2 Input and Output Data...................................................................................... 5-17 5.4.3 Flux to Dose Rate Conversion........................................................................... 5-17 5.4.4 External Radiation Levels.................................................................................. 5-17 5.4.4.1 Table - Calculated Dose Rate for the Loading Configuration.............. 5-19
- 6.
CRITICALITY EVALUATION............................................................................................................ 6-1
- 7.
PACKAGE OPERATIONS................................................................................................................ 7-1 7.1 Package Loading............................................................................................................... 7-1 7.1.1 Preparation for Loading...................................................................................... 7-1 7.1.2 Loading of Contents............................................................................................ 7-1 7.1.3 Preparation for Transport................................................................................... 7-1 7.2 Package Unloading........................................................................................................... 7-2 7.2.1 Receipt of Package from Carrier......................................................................... 7-2 iii
7.2.2 Removal of Contents........................................................................................... 7-2 7.3 Preparation of Empty Package for Transport................................................................... 7-2 7.4 Other Operations............................................................................................................. 7-2 7.5 Appendix.......................................................................................................................... 7-2
- 8.
ACCEPTANCE TESTS AND MAINTENANCE PROGRAM................................................................. 8-1 8.1 Acceptance Tests.............................................................................................................. 8-1 8.1.1 Visual Inspections and Measurements............................................................... 8-1 8.1.2 Weld Examinations.............................................................................................. 8-2 8.1.3 Structural and Pressure Tests............................................................................. 8-2 8.1.4 Leakage Tests...................................................................................................... 8-2 8.1.5 Component Tests................................................................................................ 8-2 8.1.6 Shielding Tests..................................................................................................... 8-2 8.1.7 Thermal Acceptance Tests.................................................................................. 8-3 8.2 Maintenance Program..................................................................................................... 8-3 8.3 Appendix.......................................................................................................................... 8-3 Sandia Test Results iv