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NUREG-1609, Supplement 2 NUREG-1609 Supplement 2 Standard Review Plan for Transportation Packages for Irradiated Tritium-Producing Burnable Absorber Rods (TPBARs) U.S. Nuclear Regulatory Commission Office of Nuclear Material Safety and Safeguards Washington, DC 20555-0001 AVAILABILITY OF REFERENCE MATERIALS IN NRC PUBLICATIONS NRC Reference Material Non-NRC Reference Material As of November 1999, you may electronically access Documents available from public and special technical NUREG-series publications and other NRC records at libraries Include all open literature items, such as NRC's Public Electronic Reading Room at books, journal articles, and transactions, Federal http://www.nrc.aov/readinp-rm.html. Register notices, Federal and State legislation, and Publicly released records include, to name a few, congressional reports. Such documents as theses, NUREG-series publications; Federal Register notices; dissertations, foreign reports and translations, and applicant, licensee, and vendor documents and non-NRC conference proceedings may be purchased correspondence; NRC correspondence and Internal from their sponsoring organization. memoranda; bulletins and information notices; inspection and Investigative reports; licensee event reports; and Commission papers and their attachments. Copies of Industry codes and standards used In a substantive manner in the NRC regulatory process are NRC publications In the NUREG series, NRC maintained at- regulations, and Title 10, Energy, in the Code of The NRC Technical Library Federal Regulations may also be purchased from one Two White Flint North of these two sources. 11545 Rockville Pike 1. The Superintendent of Documents Rockville, MD 20852-2738 U.S. Government Printing Office Mail Stop SSOP Washington, DC 20402-0001 These standards are available in the library for Internet: bookstore.gpo.gov reference use by the public. Codes and standards are Telephone: 202-512-1800 usually copyrighted and may be purchased from the Fax: 202-512-2250 originating organization or, If they are American 2. The National Technical Information Service National Standards, from- Springfield, VA 22161-0002 American National Standards Institute www.ntis.gov 11 West 42"' Street 1-800-553-6847 or, locally, 703-605-6000 New York, NY 10036-8002 www.ansi.org A single copy of each NRC draft report for comment is 212-642-4900 available free, to the extent of supply, upon written request as follows: Address: Office of the Chief Information Officer, Reproduction and Distribution Legally binding regulatory requirements are stated Services Section only In laws; NRC regulations; licenses, Including U.S. Nuclear Regulatory Commission technical specifications; or orders, not In Washington, DC 20555-0001 NUREG-series publications. The views expressed E-mail: DlSTRIBUTION~nrc.gov in contractor-prepared publications In this series are Facsimile: 301-415-2289 not necessarily those of the NRC. Some publications In the NUREG series that are The NUREG series comprises (1) technical and posted at NRC's Web site address administrative reports and books prepared by the httD://www.nrc.pov/readinp-rm/doc-collections/nureas staff (NUREG-XXXX) or agency contractors are updated periodically and may differ from the last (NUREG/CR-XXXX), (2) proceedings of printed version. Although references to material found conferences (NUREG/CP-XXXX), (3) reports on a Web site bear the date the material was accessed, resulting from International agreements the material available on the date cited may (NUREG/IA-XXXX), (4) brochures subsequently be removed from the site. (NUREGIBR-XXXX), and (5) compilations of legal decisions and orders of the Commission and Atomic and Safety Licensing Boards and of Directors' decisions under Section 2.206 of NRC's regulations (NUREG-0750). NUREG-1609 Supplement 2 Standard Review Plan for Transportation Packages for Irradiated Tritium-Producing Burnable Absorber Rods (TPBARs) Maruscript Completed: June 2005 Date Published: February 2006 RPW. Parkhill, NRC Project Manager Spent Fuel Project Office Office of Nuclear Material Safety and Safeguards U.S. Nuclear Regulatory Commission Washington, DC 20555-0001 Jc'RI 1 ABSTRACT The NRC contracted with LLNL to compile this supplement to NUREG-1609 to incorporate additional information specific to tritium-producing burnable absorber rods (TPBARs). As a supplement to NUREG-1609, this report is intended to provide details on transportation package review guidance for the shipment of TPBARs. The principal purpose of this supplement is to ensure the quality and uniformity of staff reviews of packagings intended for transport of TPBARs. It is also the intent of this plan to make information about regulatory matters widely available, and improve communications between the NRC, interested members of the public, and the nuclear industry, thereby increasing the understanding of the NRC staff review process. In particular, this supplemental guidance, together with NUREG-1609, assists potential applicants by indicating one or more acceptable means of demonstrating compliance with the regulations. iii CONTENTS Abstract......................................................................................................................................................................... iii Contents ....................... v Abbreviations and Acronyms .................... ix Introduction ............. ... .... References ..................... 2 1.0 General Information Review ... 3 1.5 Review Procedures..3 1.5.2.3 Contents .3 1.7 References..7 2.0 Structural Review ... 9 2.5 Review Procedures..9 2.5.2 Materials .9 2.5.3 Fabrication and Examination .11 2.5.4 Lifting and Tie-Down Standards for All Packages .1 2.5.6 Structural Evaluation under Normal Conditions of Transport .12 2.5.7 Structural Evaluation under Hypothetical Accident Conditions .12 2.7 References..13 3.0 Thermal Review .................. 15 3.5 Review Procedures..15 3.5.1 Description of Thermal Design .15 3.5.4 Thermal Evaluation under Normal Conditions of Transport .16 3.5.5 Thermal Evaluation under Hypothetical Accident Conditions .17 3.7 References..17 4.0 Containment Review .................. 19 4.5 Review Procedures.19 4.5.1 Description of the Containment System .19 4.5.2 General Considerations .20 4.5.3 Containment under Normal Conditions of Transport (Type B Packages) .21 4.5.4 Containment under Hypothetical Accident Conditions (Type B Packages) .23 4.5.5 Leakage Rate Tests for Type B Packages .24 4.7 References..24 5.0 Shielding Review ................................. 27 5.5 Review Procedures ............................... 27 5.5.2 Radiation Source ............................... 27 5.5.4 Shielding Evaluation ............................... 30 5.7 References ................................ 30 6.0 Criticality Review ................................. 33 6.5 Review Procedures ............................... 33 6.5.2 Fissile Material Contents ............................... 33 6.7 References ................................ 33 v 7.0 Operating Procedures Review ........................ 35 7.5 Review Procedures ............................................. 35 7.5.1 Package Loading ............................................ 35 7.5.2 Package Unloading ............................................ 38 7.5.3 Preparation of Empty Package for Transport/Storage ............................................ 39 7.7 References ............................................. 39 8.0 Acceptance Tests and Maintenance Program Review . .41 8.5 Review Procedures..41 8.5.1 Acceptance Tests .41 8.5.2 Maintenance Program .41 APPENDICES....43 Appendix E: Physical and Chemical Properties of Tritium . .E-I E.1 Sources of Tritium ............................... E-1 E.2 The Relative Abundance of Tritium ............................... E-1 E.3 Radioactive Decay of Tritium ................................ E-2 E.3.1 Generic .............................. E-2 E.3.2 Beta Emissions .............................. E-2 E.3.3 Photon Emissions .............................. E-4 E.4 The Chemical Properties of Tritium ................................ E-4 E.4.1 Generic .............................. E-4 E.4.2 Solubility Reactions .............................. E-4 E.4.3 Exchange Reactions .............................. E-5 E.4.4 Radiolysis Reactions ................................ E-5 E.5 Le Chatelier's Principle ............................... E-6 E.6 Modeling the Behavior of Tritium ............................... E-7 E.6.1 Surface Contamination Modeling ................................ E-7 E.6.2 Plate-Out Expectations .............................. E-8 E.6.3 Outgassing Expectations ................................ E-8 E.6.4 Bulk Contamination Modeling .............................. E-9 E.7 Materials Compatibility Issues ............................... E-9 E.7.1 Pressure Considerations ................................ E-9 E.7.2 Temperature Considerations ................................ E-9 E.8 Organics ............................... E-10 E.9 Outgassing from Bulk Materials ............................... E-13 E.10 References ... E-13 E.11 Suggested Additional Reading ... E-13 Appendix F: Biological Properties of Tritium and Tritium Health Physics .. F-I F.1 Biological Properties of Tritium ...................... F-I F..1l General .............................. F-I F. 1.2 The Metabolism of Gaseous Tritium ............................. F-1 F. 1.3 The Metabolism of Tritiated Water ............................. F-I F. 1.4 The Metabolism of Other Tritiated Species ............................
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