PAT-2 (Plutonium Air-Transportable Model 2) safety analysis report

Abstract

. 5Results . 6Special Shielding Analyses Requited AppendixReferences 6.1 Satmiry 6.2 General 6 . 3 Calculational lbdels 7. 4. 6 Security Seals 7.4.7Shipping Labels Disassembling and Unloading t h e PAT-2 Package 7. 5. 1 General 7.5.2Remove TB-2 fran AQ-2 7.5.3Open the TB-2 7.5.4Open the C-1 Capsule 8-4 9-1 9-1 9-1 9-2 9-2 9-3 9-4 9-4 Y-49-4 9-5 9-5 9-5 9-5 9-5 9-6 9-6 9-6 9-6 9-6 9-6 9-7 9-85 19-1 10-1 10-2 10-9 10-12 10-15 10-20 10-24PAT-2 (PLUTONIUM AIR TRANSPORTABLE KMEl 2) SAFETY UiALYSIS REPORT C W T E R 1GENERlU INFORMATLOW 1.1 INTRWUCTIONThis Safety Analysis Report (SAR) f o r the PAT-2 (Plutoniun A i r Transpartable M e 1 2) package i s primarily i n accordance with requirements of t h e U.S. Nuclear Regulatory Gomission (NRC) and is also i n accordance with requirements of the United States IAEA Cmpetent Authority (the U.S. Department of Transportation) and requireraents o f t h e IAEA (International Atanic Energy Agency).The PAT-2 package is designed for t h e safe transport of p l u t o n i m and/or uranium i n small quantities, especially as tised i n international safeguards activities, and especially a s transported by air.The PAT-E package is r e s i s t a n t t o severe accidents, including tinat o f a high-speed jet a i r c r a f t crash, and i s designed t o withstand such environnents as extreme impact, crushing, puncturing and slashing loads, severe hydrocarbon-fueled fires, and deep underwater immersion, with no escape o f contents. The accident env i r m n t s way be imposed upon t h e package singly o r sequentially.The package wets. t h e r e q u j r e n t s of 10 CFR 71* for F i s s i l e Class I packages with a cargo of 15 grams of Pu-239, or other isotopic forms described herein, not t o exceed 2 watts of thermal activity.This SAR presents design and operational infomation including evaluations and analyses, test results, operating procedures, maintenance, and q u a l i t y assurance T i t l e 10 of the Code of Federal Regulations, Part 71, contains the r u l e s and regiilations of t h e NRC f o r t h e transportaticn o f nuclear material. In referring infonaation. Both tests and analyses were applied to confirm that the PAT-2 package meets t h e various statutory and regulatory retpirenents. Structural analyses address a l l of the stated requirarents and, additionally, t r e a t the containnent vessel by f i n i t e element analysis and t h e overpack by an energy balance analysis.Iheml analyses define raxiun now1 operating temperature with thercrdible accident ~l l y active radiofsotopic contents; them1 tests define maxi teaperatures of t h e contaiment.Leak-rate testing and plutoni c o n t a i m analyses treat the problm of plutoniia transport through very snall apertures or cracks, f o r various extreare post-accident conditions imposed on the contaimmt vessel and its internal capsule, P l u t o n i u contairnent i s confinned t o be orders of magnitude i n excess of IAEA requirerents [essentially, there would be no plutoniu release). Engineering drawings and specifjcations f...

Investigation into the feasibility of alternative plutonium shipping forms

“…Development of such a packaging has been progressing at the Sandia National Laboratories (Andersen et al 1981). The PAT-2 is shown in Figure The PAT-2 consists of three basic parts: a protect ive redwood overpack, an iron-base alloy inner containment vessel, and a double-walled stainless steel capsule.…”