Aging effects of US space nuclear systems in orbit Page: 4 of 233
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TABLE OF CONTENTS
Section Page
1.0 INTRODUCTION 1-1
2.0 SUMMARY AND CONCLUSIONS 2-1
2.1 Radioisotopic Inventory Versus 2-1
Time
2.2 External Radiation Field Versus 2-2
Time
2.3 Aging of Materials and Source Terms 2-2
2.4 Reentry Source Terms 2-3
3.0 REFERENCE DESIGN INFORMATION 3-1
4.0 RADIOISOTOPIC INVENTORY VERSUS TIME 4-1
5.0 EXTERNAL RADIATION FIELD VERSUS TIME 5-1
6.0 AGING OF MATERIALS 6-1
7.0 REENTRY SOURCE TERMS 7-1
APPENDIX A TRANSIT 4A/4B (SNAP-3)
APPENDIX B TRANSIT TRIAD 01-X (RTG)
APPENDIX C TRANSIT 5BN1/5BN2 (SNAP 9A)
APPENDIX D SNAPSHOT (SNAP 10A)
APPENDIX E NIMBUS III (SNAP 19)
APPENDIX F LES 8/9 (MHW-RTG)
APPENDIX G GALILEO/ISPM (GPHS-RTG)
APPENDIX H FUEL PROPERTIES
DISCLAIMER
This report was prepared as an account of work sponsored by an agency of the United States
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employees, makes any warranty, express or implied, or assumes any legal liability or responsi-
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mendation, or favoring by the United States Government or any agency thereof. The views
and opinions of authors expressed herein do not necessarily state or reflect those of the
United States Government or any agency thereof.i
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Bartram, B. W.; Huang, R.; Tammara, S. R. & Thielke, N. R. Aging effects of US space nuclear systems in orbit, report, May 14, 1982; United States. (https://digital.library.unt.edu/ark:/67531/metadc1107225/m1/4/: accessed April 23, 2024), University of North Texas Libraries, UNT Digital Library, https://digital.library.unt.edu; crediting UNT Libraries Government Documents Department.