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Senior Technical Review Report March 1995


Review of
The Draft Summary Report of the Screening Process to Determine Reasonable Alternatives for Storage and Disposition of Weapons-Usable Fissile Materials

Executive Summary

Mr. Howard Canter, Technical Director, Office of Fissile Materials Disposition, U.S. Department of Energy asked the Amarillo National Resource Center for Plutonium to review a draft document titled, "Summary Report of the Screening Process to Determine Reasonable Alternatives for Storage and Disposition of Weapons-Usable Fissile Materials" (referred to hereafter as Draft Summary Report).

In order to carry out this task, the Center assembled a Senior Technical Review Group: a distinguished Group of sixteen national leaders in science, engineering, public policy, health and industry, with broad-based competency in nuclear issues. The Center charged this Group with reviewing the Draft Summary Report and making recommendations about the process and the product. The members of the Group reviewed documents prior to two meetings held in Dallas, Texas on 17 February and 11 March 1995.

The recommendations of the Senior Technical Review Group and the observations that led to the recommendations appear below. An annotated roster of the Senior Technical Review Group appears at the end of this report.

Background

In 1991, the United States (U.S.) and the Soviet Union signed the first Strategic Arms Reduction Talks Treaty (START I). Start I reflected the superpowers' mutual desire for arms reductions and included a 30% reduction in strategic nuclear warheads, including a 50% reduction in ballistic-missile warheads. The collapse of the former Soviet Union in late 1991 led rapidly to a second treaty governing nuclear arms reduction, START II. START II, which was signed in 1993, called for a reduction in strategic nuclear warheads to about one-third of 1990 levels and a complete elimination of land-based, multiple-warhead missiles. Although not ratified by either party, the governments are conducting business as though START II was ratified. In parallel, tactical nuclear weapons are being reduced by executive agreement between President Clinton and Yeltsin.

As a consequence of dismantling nuclear warheads, decisions must be made concerning the best options for storage, disposition, and/or utilization of the excess fissile materials removed from these weapons, primarily plutonium and highly-enriched uranium. In 1994, a standing committee of the National Academy of Sciences, the Committee on International Security and Arms Control, published the results of an in-depth study of storage and disposition options titled, Management and Disposition of Excess Weapons Plutonium. This study report emphasizes that, "The existence of this surplus material constitutes a clear and present danger to national and international security." The urgency of plutonium disposition emerges at this time primarily due to the excess of weapons-grade plutonium in Russia and a concern regarding diversion of this material. A dialogue is presently developing among several countries to evaluate mutually beneficial plutonium disposition options.

In response to the Clinton administration's call for a comprehensive approach to the growing stock of fissile materials from dismantled nuclear weapons, the U.S. Department of Energy (DOE) developed a screening process to consider potential options for: (1) Long-term storage of strategic reserve and surplus weapons-usable fissile materials, and (2) Disposition of surplus weapons-usable fissile materials determined excess to national security needs, presently estimated to include approximately 50 metric tons of plutonium and a greater quantity of surplus highly-enriched uranium in the U.S. The quantities of surplus plutonium and highly-enriched uranium in Russia are

similar or greater than that in the U.S. In developing this screening process, DOE obtained public input on screening criteria to be utilized and options to be evaluated. A report was then drafted, Draft Summary Report, that describes the process and the results of the first phase of this screening. Prior to distribution of the Draft Summary Report, the DOE asked the Center to review the draft. The Center assembled a high-level review group, The Senior Technical Review Group, to comment on the screening process and the options delineated in the report.

Overview of the Review Process

The members of the Senior Technical Review Group were furnished with background information, including the 1994 study report of the National Academy of Sciences' Committee on International Security and Arms Control and the Draft Summary Report, for their review prior to a meeting in Dallas, Texas on 17 February 1995. At that meeting, the Group received valuable input from the staff of the DOE's Office of Fissile Materials Disposition. Group members submitted written comments to Center staff and met again on 11 March 1995 to finalize recommendations and review and revise this Group report.

Summary and Principal Recommendations

The DOE staff did an excellent job of organizing and writing the Draft Summary Report and orally presenting information to the Senior Technical Review Group; each step of the screening process was documented in detail. The Draft Summary Report targets weapons-usable plutonium. Weapons-usable plutonium includes weapons-grade plutonium and plutonium that is in a form from which the plutonium would be difficult to fabricate a weapon, such as plutonium in commercial spent fuel. Because of the more immediate proliferation risk posed by weapons-grade plutonium, the comments of the Group apply to weapons-grade plutonium. Furthermore, the fact that certain plutonium disposition options were eliminated for the purpose of timely disposition of excess weapons-grade plutonium does not imply that the eliminated options have or do not have utility for future purposes, including disposition of weapons-usable plutonium.

The Review Group concurs with the DOE position in the Draft Summary Report that the acceptable standards for storage and disposition are the stored weapon standard and the spent fuel standard, respectively. In like manner, the Review Group adopted the National Academy of Sciences' Committee on International Security and Arms Control argument for not considering plutonium contained in commercial spent fuels. This argument was also incorporated in the Draft Summary Report.

Eight recommendations of the Senior Technical Review Group follow:

  1. Because of the clear and present danger posed by excess weapons-grade plutonium in some countries, it is recommended that DOE revise the preamble and wording of its individual screening criteria in the Draft Summary Report to reflect this concern.

  2. Because of the clear and present danger posed by excess weapons-grade plutonium in some countries, it is recommended that the DOE reduce the list of initial storage and disposition options quickly by considering only established technologies that do not require a large research and development effort and can be achieved within a decade. A decision plan for storage and disposition is needed within a year. This plan should be flexible enough to provide for the inclusion of less mature technologies if they mature in an appropriate time frame.

  3. Because of the clear and present danger posed by excess weapons-grade plutonium in some countries, it is recommended that DOE extend its efforts to make the public and governmental officials aware of the seriousness of the problem.

  4. Not only national security but international concerns dictate that urgency exists for the development of a U.S./Russia strategy for the management of excess weapons-grade plutonium. Irrespective of the final decision on plutonium disposition, DOE should proceed as soon as possible to place weapons-grade plutonium in forms suitable for interim storage and collaborate with the Russians to achieve the same objective.

  5. While recommending that the DOE proceed with great dispatch to minimize the risk posed by excess weapons-grade plutonium, the Group is compelled to point out the importance of maintaining concern for the environment and the protection of the health and safety of the public and the workers involved in the storage and disposition of plutonium and highly-enriched uranium, in keeping with internationally established standards.

  6. It is recommended that cost effectiveness for individual options be given greater weight in the evaluation. Clearly, cost will play a decisive role in the ultimate selection of individual options.

  7. It is recommended that consideration be given to clarifying the terms, long-term storage and interim storage, by giving them functional definitions rather than a specified time-scale. For example, interim storage would mean storage to be replaced by disposition or long-term storage as soon as feasible. Long-term storage would mean storage with no current plans for disposition. The latter would include storage of material required for national security reserve.

  8. The DOE's openness in reaching out to the public for ideas and opinions on the storage and disposition of weapons-grade plutonium is commendable. This should be continued. However, because of the deficiencies in the approach and methodology used by DOE to survey the public, it is recommended that the results of this survey be given less weight in the Final Summary Report as compared to the Draft Summary Report. If additional surveys are deemed necessary, they should be professionally designed and administered.

Findings

The list of screening criteria included in the Draft Summary Report was found to be complete. The Review Group's suggestions for prioritization of these criteria are reflected in the findings and recommendations presented.

Establishing Urgency

The first paragraph of the Draft Summary Report contains a succinct powerful statement about the dangers posed by the tremendous amounts of weapons-usable fissile materials that are surplus to the national needs of the U.S. and Russia. Repetition of this statement at appropriate places in the Draft Summary Report and in any questionnaires distributed is advisable. Unless the urgency of resolving this problem is kept in the forefront, incorrect judgments and decisions may be made. Similarly, the risks involved in delaying action for any substantial period should be clearly spelled out.

The Group finds an apparent serious mismatch between the time schedule for the disposition options identified for further study in the Draft Summary Report and the immediacy of the threat to national and international security. The disposition options identified require approximately two decades to complete, and five or more years to initiate. Safe and secure storage for an extended period may be the only available means for reducing the risk to acceptable levels in the near-term.

Specific Options for Disposition

From the options evaluated in the Draft Summary Report, DOE selected ten options as reasonable alternatives for plutonium disposition and these options are slated for detailed study. These options are listed in the Appendix of this report.

Presently, the Review Group believes three of the options still under consideration by DOE appear to have the greatest potential for immediate development as follows:

Another option, option R-1, transfer to the EURATOM market for mixed-oxide (MOX) fuel reactor burning, technically offers the most rapid way to carry out the disposition option since MOX fabrication facilities and MOX burning reactors are already in operation in Europe. However, international agreements would have to be reached, overseas shipments of plutonium and possibly spent fuel would be required, and an equivalent amount of commercial separated plutonium would have to be stored, which could counter the timing advantage.

Finally, a minority opinion endorsed by four of the sixteen Group members supports an option which was eliminated in the screening process: the advanced liquid metal reactor/IFR. These Group members suggest that the advanced reactor options should be carried forward through the completion of the assessment process and not be ruled out at this stage because of the timeliness factor. Additionally, these four Group members would give extra weight to these options because these options promise progress "beyond the spent fuel standard" while others do not. This minority opinion was opposed by all of the other Group members because going beyond the spent fuel standard does not advance national or international security for weapons-grade plutonium.

Public Input

The DOE sought public input on screening criteria to be utilized and options to be evaluated by holding a series of 12 scoping meetings and requesting that the public complete and return two questionnaires. The two questionnaires focused on: (1) Criteria for screening long-term storage alternatives and (2) Criteria for screening disposition alternatives. As a result of the input received, the statement of several of the criteria were modified to clarify the criteria definition.

The survey was found to have three primary shortcomings: (1) Respondents were self-selected and few in number, (2) Preamble for questionnaire as well as wording of individual items did not give the respondents the background needed to respond, and (3) Questions were not tested for validity. Because of these three shortcomings, the results of the survey are given more weight than is warranted in the Draft Summary Report.

Cost Effectiveness

Basically, four economic issues surfaced during the Group discussion. First, it was suggested that the total cost should be considered and that too little weight was given to the cost effectiveness criteria in the Draft Summary Report. It was agreed that it was important to look at total cost including the problem of who would pay for energy generation options, the entire burden on taxpayers versus the entire burden on rate payers. Finally, in discussing the costs of the disposition options, it is appropriate to clarify that conclusions based on Western economic conditions do not necessarily apply to Russia where labor and materials costs are lower.

Storage Terminology

The term interim storage was confusing in the Draft Summary Report as it was used interchangeably with the term existing storage (see for example page 1-6 and figure 1-3). Both the terms interim and long-term storage would be more useful if the terms were given functional definitions.

Issues for Future Consideration by the Department of Energy

In addition to reviewing the Draft Summary Report, the Senior Technical Review Group discussed issues relevant to but not specifically addressed in the Report. One such issue is the need for the DOE to pursue an aggressive research and development strategy to the extent necessary to implement the disposition options selected.

Another issue is that of the need for legislation. Because this is a long-term program that requires a dependable strategy over time, the DOE is encouraged to propose legislation that puts the U.S. Congress behind a disposition program and the Administration under a legal process by which cooperation will occur. This in turn could set an example for Russia that may follow a similar course. While laws can be changed by governments, legislation provides a degree of stability that is encouraged.

Finally, disposition options should be implemented by the U.S. at a rate commensurate with the rate at which Russia also disposes of its surplus weapons-grade plutonium.

Annotated List of Senior Technical Review Group Members

John F. Ahearne, Executive Director, Sigma Xi, The Scientific Research Society, formerly vice president and senior fellow of Resources for the Future, served as member of numerous committees, boards and commissions related to nuclear energy including chairman of the National Research Council Committee on the Future of Nuclear Power Development and Committee on Risk Perception and Communication, Fellow of the American Association for the Advancement of Science and the American Academy of Arts and Sciences.

Floyd L. Culler, Jr., President Emeritus, Electric Power Research Institute, member of the National Academy of Engineering, Fellow of the American Institute of Chemists, American Nuclear Society, and the American Institute of Chemical Engineers, recipient of numerous awards including E.O. Lawrence award and the Robert E. Wilson award of the American Institute of Chemical Engineers.

Paul M. Doty, Professor Emeritus, Department of Biochemistry and Molecular Biology and Director Emeritus, Center for Science and International Affairs, Harvard University, member of the National Academy of Sciences, member of National Academy's Committee on International Security and Arms Control.

Shirley A. Fry, Oak Ridge Institute for Science and Education (ORISE), Physician/Epidemiologist, formerly Assistant Director, Medical Sciences Division and Director of the Division's Center for Epidemiologic Research, ORISE; member of medical teaching staff, Radiation Emergency Assistance Center/Training Site, ORISE; member of national and international groups studying the acute and long-term health effects of ionizing radiation.

Norman Hackerman, President Emeritus, Rice University, Chairman of the Scientific Advisory Committee, Robert A. Welch Foundation, member of the National Academy of Sciences. Recipient of distinguished achievement awards from numerous scientific societies and government bodies; most recently in 1993 received the National Medal of Science and the Vannevear Bush Medal of the National Science Board.

Richard T. Kennedy, Ambassador at large (retired), commissioned as Ambassador at large and special advisor to the Secretary of State on nonproliferation and nuclear energy policy from 1982-92, appointed Under Secretary of State in 1981 and served as representative to the International Atomic Energy Agency, 1981 to 1993. A fellow of the American Nuclear Society and recipient of the ANS/ENS Beckhurst Award. Commissioner of the U.S. Nuclear Regulatory Commission, 1975 - 1980.

Myron B. Kratzer, Deputy Assistant Secretary of State for Nuclear Energy (retired), serves on the American Nuclear Society special panel on plutonium, recipient of the Atomic Energy Commission's Distinguished Service Medal. Chemical engineer who served the Atomic Energy Commission from 1958-71, including Assistant General Manager for International Activities.

John W. Landis, Chairman, Public Safety Standards Group, member of the National Academy of Engineering, past-president and Fellow of the American Nuclear Society, Fellow of the American Society of Mechanical Engineers, retired president of General Atomics and Stone & Webster International, recipient of DOE Exceptional Public Service Award and numerous other awards, has served on 27 government advisory committees.

I. Harry Mandil, President (retired), MPR Associates, in charge of reactor engineering under Admiral Rickover, served on former Secretary of Energy Watkins advisory committee.

Lewis Manning Muntzing, Attorney, Morgan, Lewis and Bockius, Washington, D.C., President, ADTECHS Corporation, past-chairman of the International Nuclear Societies Council, past-president of the American Nuclear Society, past-chairman of Council of Scientific Societies Presidents.

Paul Nelson, Professor of Computer Science, Nuclear Engineering and Mathematics, Texas A&M University, editor of The Journal of Transport Theory and Statistical Physics, past-chair of the Mathematics and Computation Division of the American Nuclear Society.

Wolfgang Panofsky, Professor and Director Emeritus, Stanford Linear Accelerator Center, member of the National Academy of Sciences, member of the National Academy's Committee on International Security and Arms Control and chair of the Weapons Plutonium Management and Disposition Study Committee. Recipient of National Medal of Science and Lawrence and Fermi Awards of the Department of Energy.

Genevieve S. Roessler, Associate Professor Emeritus, University of Florida, Fellow, past-president and past-editor of the Health Physics Society, 1994 advisory committee chair for the Health and Safety Research Division, Oak Ridge National Laboratory, also served on scientific review committees for U. S. Department of Energy (1984-88), and Rocky Flats (1980-82).

Glenn T. Seaborg, Chairman, Lawrence Hall of Science, received Nobel prize for Chemistry in 1951 and was original chairman of the Atomic Energy Commission, co-discoverer of over 16 elements and isotopes including plutonium. Holds distinguished achievement awards from numerous scientific societies and countries; most recently received the National Medal of Science (U.S. 1991) and the Royal Order of the Polar Star Sweden (1992).

John Taylor, Vice President (retired), Nuclear Power Division, Electric Power Research Institute, formerly Vice President and General Manager of the Water Reactor Business Unit of Westinghouse Electric Corporation, engaged in nuclear power development for naval propulsion and electricity generation for 31 years, member of the National Academy of Engineering, Fellow of the American Association for the Advancement of Science and the American Nuclear Society.

Kenneth L. Woodfin, Rear Admiral (retired), independent Management and Financial Consultant, expertise in the areas of logistics, acquisition and financial management, senior business assistant to Admiral Rickover in the Naval Nuclear Power Program, former assistant administrator of NASA, and senior vice president with Burns and Roe, international architectural engineers.

Appendix

List of plutonium disposition options selected as reasonable by the DOE during the first phase of their screening process (see Draft Summary Report of the Screening Process to Determine Reasonable Alternatives for Storage and Disposition of Weapon-Usable Fissile Materials, February 1995).

(D-2/3) Emplacement in Very Deep Boreholes (either directly or immobilized without radionuclides, which were initially separate options)

(I-3) Immobilization with Radionuclides in New Borosilicate Glass Vitrification Plant or Facility, with Ultimate Repository Disposal

(I-4) Ceramic Immobilization with Radionuclides, with Ultimate Repository Disposal

(I-5) Metal Immobilization, with Ultimate Repository Disposal

(I-6) Borosilicate Glass Oxidation/Dissolution/Immobilization with Radionuclides, with Ultimate Repository Disposal

(R-1) Transfer to the EURATOM Market for Mixed-oxide (MOX) Fuel Reactor Burning

(R-2) Burning in Existing Light Water Reactors, with Ultimate Repository Disposal

(R-2A) Burning in Partially Completed Light Water Reactors, with Ultimate Repository Disposal

(R-3) Burning in Evolutionary or Advanced Light Water Reactors, with Ultimate Repository Disposal

(R-6) Burning in CANDU Heavy Water Reactors, with Spent Fuel Disposal by Canadian Utility