ML22063B114
| ML22063B114 | |
| Person / Time | |
|---|---|
| Site: | 07103036 |
| Issue date: | 12/20/2021 |
| From: | Office of Nuclear Material Safety and Safeguards |
| To: | |
| Bernie White NMSS/DFM/STL 301-415-6577 | |
| Shared Package | |
| ML22063B110 | List: |
| References | |
| EPID L-2020-DOT-0000 | |
| Download: ML22063B114 (11) | |
Text
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IDENTIFICATION MARK J/2039/B(U)F COMPETENT AUTHORITY OF JAPAN CERTIFICATE FOR APPROVAL OF PACKAGE DESIGN FOR THE TRANSPORT OF RADIOACTIVE MATERIALS ISSUED BY NUCLEAR REGULATION AUTHORITY 1-9-9, ROPPONGI MINATO-KU TOKYO, JAPAN
CERTIFICATE FOR APPROVAL OF PACKAGE DESIGN FOR THE TRANSPORT OF RADIOACTIVE MATERIALS This is to certify, in response to the application by KYOTO UNIVERSITY, that the package design described herein complies with the design requirements for a package containing Fresh Fuel Elements and Spectrum Converter, specified in the 2018 Edition of the Regulations for the Safe Transport of Radioactive Material (International Atomic Energy Agency, Safety Standards Series No.SSR-6) and the Japanese rules based on the Act on Regulation of Nuclear Source Material, Nuclear Fuel Material and Reactors.
This certificate does not relieve the consignor from compliance with any requirement of the government of any country through or into which the package will be transported.
COMPETENT AUTHORITY IDENTIFICATION MARK: J/2039/B(U)F Pee ;z.-e, µ,H I Date Hasegawa KiycYmitsu Director, Division of Licensing for Nuclear Fuel Facilities Secretariat of Nuclear Regulation Authority Competent Authority of JAPAN for Package Design Approval
Reference of J/2039/B(U)F Page 1 of 7 Pages
- 1. The Competent Authority Identification Mark : J/2039/B(U)F
- 2. Name of Package : JRF-90Y-950K
- 3. Type .of Package : Type B(U) package for fissile material
- 4. Specification of Package (1) Materials of Packaging (a) Main Body : Stainless steel, Balsa wood and Hard polyurethane foam (b) Outer lid : Stainless steel, Balsa wood and Hard polyurethane foam (c) Inner lid : Stainless steel and Silicone rubber (d) Fuel Basket : Stainless steel and Silicone rubber (2) Total weight of Packaging : Approximately 860 kg (3) Outer Dimensions of Packaging (i) Outer Diameter : Approximately 840 mm (ii) Length : Approximately 1,800 mm (4) Total Weight of Package : 950 kg or less
.(5) Illustration of Package : See the attached Figure-1 (Bird's-eye View)
- 5. Specification of Radioactive Contents : See the attached Table-1, 2 and 3
- 6. Description of Containment System Containment system consists of the inner shell and the inner lid (made of the stainless steel). O-ring inade of silicone rubber is used for the contact surface between inner shell and inner lid.
- 7. For Package containing Fissile Materials (1) Restrictions on Package (i) Restriction Number "N" : No restriction (ii) Array of Package : No restriction (iii) Criticality Safety Index (CSI) :0 (2) Description of Confinement System
Reference of J/2039/B(U)F Page 2 of 7 Pages Confinement system consists of the basket which maintains the fuel elements contained in the package.
(3) Assumptions of Leakage of Water into Package It is assumed in criticality analysis that water will leak into void space of inner shell.
(4) Special Features in Criticality Assessment Not applicable
- 8. For Type B (M) Packages, a statement regarding prescriptions of Type B (U)
Package that do not apply to this Package Not applicable (This package is Type B(U))
- 9. Assumed Ambient Conditions (i) Ambient Temperature Range : -40°C~38°C (ii) Insolation Data : Table 12 of IAEA Regulation
- 10. Handling, Inspection and Maintenance (1) Handling Instructions (i) Package should be handled carefully in accordance with the schedule and procedures established properly taking all possible safety measures.
(ii) Package should be handled using appropriate lifting devices and the crane.
(iii) When packaging is stored outdoors, it should be coverd with an appropriate waterproof sheet, avoiding the situation where it is placed directly on the ground.
(2) Inspections and Maintenance of Packaging The following inspections should be performed not less than once a year (once for every ten times in a case where the packaging is used not less than ten times a year) and defect of packaging should be repaired, if any, in order to maintain the integrity of packaging.
(i) Visual Appearance Inspection (ii) Pressure Durability Inspection (iii)Maintenance of O-ring Used for Containment System (iv) Leakage Rate Measurement Inspection (v) Subcriticality Inspection (vi) Lifting Inspection (3) Actions prior to Shipment The following inspections should be performed prior to shipment.
(i) Visual Appearance Inspection
Reference of J/2039/B(U)F Page 3 of 7 Pages (ii) Lifting Inspection (iii) Weight Measurement Inspection (iv) Surface Cointamination Measurement Inspection (v) Radiation Dose rate Inspection (vi) Subcriticality Inspection (vii) Contents Specification Check Inspection (viii) Leakage Rate Measurement Inspection (4) Precautions for Loading of Package for Shipment Package should be securely loaded to the conveyance at the designated tie-down portion of the package so as not to move, roll down or fall down from the loading position during transport.
- 11. Issue Date and Expiry Date (i) Issue Date : December 9, 2021 (ii) Expiry Date : December 8, 2061
Reference of J/2039/B(U)F Page 4 of 7 Pages Approximately c/) 840 Inner lid Outer lid Eye-plate Outer shell Inner shell Fuel basket Fuel element Main body (Unit: mm)
Figure-1 Illustration of JRF-90Y-950K package (Bird's-eye view)
Table-1 Specification of Contents (KUR Fresh Fuel Element)
Reactor KUR (Kyoto University Research reactor)
KUR KUR KUR Fuel Element Standard Fuel Element Special Fuel Element Half-loaded Fuel Element Number of Fuel Elements (element/package) 10 or less Fuel Type LEU fuel Materials of Nuclear Fuel Uranium-silicon -aluminum dispersion alloy 235U weight (g or less/package) 2,180 1,090 1,090 U weight (g or less/package) 11,150 5,580 5,580 Weight 235U weight (g or less/element) 218 109 109 U weight (g or less/element) 1,115 558 558 Enrichment (wt% or less) 19.95 Total (GBq or less/package) 29.8 234U 28.6 Activity of Principal Radionuclide 23su 0.38 Contents 236U 0.59 (GBq or less/package) 23su 0.24 Physical State Solid Burn-up (% or less) 0 (Fresh Fuel)
Total Heat Generation Rate 0 (Fresh Fuel) ~
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Table-2 Specification of Contents (KUCA Fresh Fuel Element)
Reactor KUCA (Kyoto University Critical Assembly)
Fuel Element Coupon* Flat Number of Fuel Elements 1,200 or less 300 or less (element/package)
Fuel Type LEU Fuel Uranium-molybdenum -
Uranium-silicon -
Materials of Nuclear Fuel aluminum dispersion aluminum dispersion alloy alloy 235U weight (g or less/package) 4,800 4,500 U weight (g or less/package) 24,600 23,400 Weight 235U weight (g or less/element) 4 15 U weight (g or less/element) 20.5 78 Enrichment (wt% or less) 19.95 Total (GBq or less/package) 15.5 2s4u 14.5 Activity of Principal Radionuclide 2s5u 0.38 Contents 236U 0.27 (GBq or less/package) ~
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Table-3 Specification of Contents (Spectrum Converter)
Specification Material of Nuclear Fuel Uranium dioxide Physical State Solid (metal)
Plate Form Spectrum Converter Plate size (mm) 310 diam. x 10.7 thick Weight of plate (g or less) 2500 Number of plate (plates or less) 1 1-,
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Total (Bq or less) 3.5 X 108
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a or less) 2s5u 8.02XlQ7 At 00 Uranium Enrichment (wt% or less) 90 Heat Generation Rate (W or less) 5.13 X 10*6 Burn up Rate (%) 7.00 X 10*6 Cooling Time (days or more)* 12340
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