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End Run
Simulating Nuclear Explosions under the Comprehensive Test Ban Treaty


This August 1997 report analyzes recently declassified excerpts from the U.S. Department of Energy's "Stockpile Stewardship and Management Plan," a comprehensive "road-map" of U.S. plans and ongoing programs involving the nuclear weapons stockpile, and finds many conflicts between U.S. plans and the goals of the 1996 Comprehensive Test Ban Treaty. The printed report includes an additional Appendix containing copies of SLBM Warhead Protection Program vu-graphs obtained by the Los Alamos Study Group.

TABLE OF CONTENTS
Introduction
How the Secret "Green Book" Saw the Light of Day
I. The Purpose of the Comprehensive Test Ban Treaty
II. Highlights from Recently Declassified Portions of DOE'S 1996 "Green Book"
SSMP Program Strategy
New Weapon Designs and Modifications
New Warhead Prototypes
Warhead Certification
DOE/DoD Joint Flight Testing
"Virtual Testing" Capabilities
Predicting Primary Stage Performance
Predicting Late Primary Stage Performance
Advanced Dynamic Radiography
Predicting Secondary Stage Performance
Plutonium Properties and Dynamic Experiments
Improved Computations for Weapons Simulations: The Accelerated Strategic Computing Initiative (ASCI)
III. U.S. Nuclear Warhead Design Activities for Naval Strategic Forces
IV. Key Elements of the SSMP Are Inconsistent with U.S. Nonproliferation Objectives and Policy Statements
V. Conclusions and Preliminary Recommendations
Appendix I: Recently Declassified Excerpts Concerning Design and Development of Nuclear Weapons under a Comprehensive Test Ban
Stewardship and Management Program Strategy
Modifying Nuclear Weapons to Meet "Updated" Military Requirements
Weapon Design Options
Maintaining Capabilities For Nuclear Weapons Design, Engineering, and Underground Testing
Nuclear Package Design
Prototype Programs
Systems Integration and Test
Underground Test Readiness
The Department of Energy Plans to Continue Making Weapon Modifications that Formerly Required "Certification" by Nuclear Explosive Tests
DOE/DoD Plan Joint Flight Testing of Modified and New Weapons under the CTBT to Certify Their Military Mission Capability
The U.S. Plans New Experimental and Computing Facilities to Improve Nuclear Weapon Physics Models and Nuclear Explosion Simulation Codes
DOE Seeks Improved Fundamental Understanding of Weapon Physics to Create Comprehensive 3-D Models of Nuclear Weapon Explosions
Predicting Primary Stage Performance
Predicting Late Primary Stage Performance
Dynamic Radiography
Predicting Secondary Stage Performance
Plutonium Properties
Enlisting the Help of the University Research Community
Improved Computations for Weapons Simulations: The Accelerated Strategic Computing Initiative (ASCI)
Report Credits and Acknowledgments

For copies of the printed report, please send $5.00 plus $1.45 shipping and handling to: NRDC, 1200 New York Avenue, NW, Suite 400, Washington, DC 20005, ATTN: Nuclear Publications. California residents must add 7.25% sales tax. International orders add $1.00 to cover airmail postage. Please make checks payable to NRDC in US dollars only.

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