ML19351E144
| ML19351E144 | |
| Person / Time | |
|---|---|
| Site: | 07109387 |
| Issue date: | 12/04/2019 |
| From: | Office of Nuclear Material Safety and Safeguards |
| To: | |
| W(Chris)Allen NMSS/DFM/STL 415.6877 | |
| Shared Package | |
| ML19351E141 | List: |
| References | |
| EPID: L-2019-LRM-0078 | |
| Download: ML19351E144 (21) | |
Text
Industrial Nuclear Company, Inc.
Outer Package, Raw Material Shipping Container Model OP-RMSC A Presentation to the US Nuclear Regulatory Commission December 4, 2019
> NRC Meeting, December 4, 2019 2
Agenda Introduction Description of OP-RMSC Package Materials of Construction Payload Description Certification Test Plan Schedule Summary
> NRC Meeting, December 4, 2019 3
Description of OP-RMSC Package Enclosed, Right Circular Cylinder 18 OD x 22-1/4 High Sch 10S Pipe Stainless Steel Construction Single Payload Raw Material Shipping Container (RMSC)
Gross Weight: Approximately 650 lb
> NRC Meeting, December 4, 2019 4
OP-RMSC Materials of Construction Structural:
Type 304 stainless steel plate, bar, and pipe ASTM A320 L7 or L43 Alloy Steel Closure Lid Bolts Outer Lid Inner Lid Body - All welded construction Polyurethane foam for minimal impact mitigation Shielding Provided by RMSC payload Tungsten gamma shields
> NRC Meeting, December 4, 2019 5
Description of OP-RMSC Package (cont)
BODY 12" CLOSURE LID BOLTS (8 PLACES)
CLOSURE LID
> NRC Meeting, December 4, 2019 6
Description of OP-RMSC Package (cont)
RMSC Payload
> NRC Meeting, December 4, 2019 7
Description of RMSC Payload Enclosed, Right Circular Cylinder 8-5/8 OD x 11-3/8 High Sch 10S Pipe Welded Stainless Steel Construction Bolted Stainless Steel Closure Lid Gross Weight: Approximately 380 lb
> NRC Meeting, December 4, 2019 8
Description of RMSC Payload (cont)
HOIST RING BODY CLOSURE LID
> NRC Meeting, December 4, 2019 9
Description of RMSC Payload (cont)
> NRC Meeting, December 4, 2019 10 Structural:
Type 304 or 304L stainless steel plate, bar, and pipe ASTM A320 L7 or L43 Alloy Steel Closure Lid Bolts All welded construction encasing body gamma shield Bolted closure lid securing cavity gamma shield Gamma Shielding: Tungsten Heavy Metal RMSC Materials of Construction
> NRC Meeting, December 4, 2019 11 RMSC Contents Contents:
Licensed as Special Form Iridium 192 (Ir-192) capsules Selenium 75 (Se-75) capsules Cobalt 60 (Co-60) capsules Cesium 137 (Cs-137) capsules Radioactive Contents Limits (to be verified):
Ir-192: 16,000 Ci Se-75: 16,000 Ci Co-60: 3 Ci Cs-137: 16,000 Ci Comply with 10 CFR §71.47(a) radiation levels Decay Heat Limit: 115 watts Surface temperature limit of 50 °C (122 °F) per 10 CFR
§71.43(g)
> NRC Meeting, December 4, 2019 12 OP-RMSC Certification Test Plan Objectives To demonstrate that, after a worst-case sequence of free and puncture drops, no degradation in shielding capability of RMSC payload To demonstrate retention of special form capsules within the RMSC gamma shielded cavity
> NRC Meeting, December 4, 2019 13 OP-RMSC Certification Test Plan (cont)
Full-scale, prototypic CTUs Demonstration basis: radiation dose rates comply with 10 CFR 71 radiation limits after full series of free and puncture drops No shielding credit for outer OP-RMSC package Use of actual radioactive source capsules in RMSC payload Post-test readings versus pre-test readings Normal speed filming of free drops planned Tests Free Drops Puncture Drops
> NRC Meeting, December 4, 2019 14 OP-RMSC Certification Test Plan (cont)
Structural evaluations:
NCT compression and free drop, HAC free & puncture drops, by test Total of one NCT free drop Total of three HAC free and three puncture drops All other NCT and HAC load cases by analysis Thermal NCT & HAC evaluations by analysis
> NRC Meeting, December 4, 2019 15 OP-RMSC Certification Test Plan (cont)
Initial conditions For high-impact free drops, temperature will be cold (-20 °F):
Top down orientation For maximum deformation free drops, temperature will be NCT hot condition:
Side CG-over-Top corner Puncture tests will be performed at ambient temperature
> NRC Meeting, December 4, 2019 16 OP-RMSC Certification Test Plan (cont)
One NCT, 4-ft free drop Three HAC 30-ft free drops One focused on impact Two focused on deformation Three puncture drops Tentatively the same free drop orientations Final orientations to be determined based on observed free drop damage
> NRC Meeting, December 4, 2019 17 OP-RMSC Certification Test Plan (cont)
Free Drop Test Purpose Vertical, Top Down (cold);
NCT & HAC Max impact to dislodge RMSC payload, gamma shields, source capsules Side (hot)
Impact to damage RMSC payload, gamma shields Top Down, CG-over-Corner (hot)
Max deformation to attempt to damage closure, RMSC payload
> NRC Meeting, December 4, 2019 18 OP-RMSC Certification Test Plan (cont)
Data collection Temperature of polyurethane foam & RMSC Normal speed film Measurements (pre-and post-test)
Crush distance, puncture damage Radiation Dose Rates Photographs
> NRC Meeting, December 4, 2019 19 OP-RMSC Certification Test Plan (cont)
Acceptance Criteria Radiation dose rate comply with 10 CFR §71.51(a)(2):
No loss of gamma shielding in RMSC payload Discussion
> NRC Meeting, December 4, 2019 20 Schedule CTU fabrication completion - 4th Quarter 2019 Certification testing - 1st Quarter 2020 Submittal of application to NRC for Type B(U)-96 certification - Late 1st or Early 2nd Quarter 2020 Planning on approximately 5 months to first round RAIs
> NRC Meeting, December 4, 2019 21 OP-RMSC Package Summary