Containing Plasma Physics : a Disciplinary History 1950-1980
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CONTAINING PLASMA PHYSICS: A DISCIPLINARY HISTORY, 1950-1980 BY GARY JAMES WEISEL A DISSERTATION PRESENTED TO THE GRADUATE SCHOOL OF THE UNIVERSITY OF FLORIDA IN PARTIAL FULHLLMENT OF THE REQUIREMENTS FOR THE DEGREE OF DOCTOR OF PHILOSOPHY UNIVERSITY OF FLORIDA 2001 Copyright 2001 by Gary James Weisel ACKNOWLEDGMENTS A number of people have helped me with this project. My dissertation advisor, Frederick Gregory has been highly supportive and has given me equal measures of constructive criticism and patient understanding as the project developed over a period of five years. V. Betty Smocovitis and Harry Paul were a great help to me in classes and private meetings in 1995 and 1996, when I was first conceiving of this project. I also was lucky to meet Hendrik Monkhorst of the UP Department of Physics, who made the original suggestion that I consider working on a history of fusion research. In part because Joan Bromberg had already written such a study, and because I became interested in plasma research more generally, Henk's original suggestion has become the present disciplinary history of plasma physics. Henk's own interest in fusion research brought veteran of the field Norman Rostoker to UP for a series of lectures in April, 1996. These lectures were an auspicious beginning to my study of plasma physics. In addition, I took the opportunity to conduct two oral interviews with Norman. One of my most important sources was the Joan Bromberg papers at the Niels Bohr Library of the American Institute of Physics (AIP). Bromberg was kind enough to allow me access to the collection, which was unprocessed at the time of my visits. The materials in the Bromberg papers are from a variety of sources. However, I have only cited them as being from the Bromberg papers (noted as AR47/AIP in the footnotes) and have not specified the original provenances. A generous grant-in-aid from the AIP allowed me to visit the Niels Bohr Library three times during 1998. There, I found a large number of other useful sources. While visiting the AIP, I also had a number of meetings with Spencer Weart, who gave me some helpful pointers on doing a disciplinary history. One of his most important iii suggestions, that I count articles and personnel in order to gain a statistical portrait of the plasma community, has not been followed up in the present study as much as it should. This has been due simply to a limit of time and my future work will include more extensive statistics. A final bonus of my AIP visits was that I met Barrett Ripin, who had recently left the Naval Research Laboratory (NRL) to work as the editor of the AIP News . In two oral interviews. Dr. Ripin gave me a great deal of insight on his work in plasma astrophysics at NRL as well as the institutional relationships among different parts of the plasma community. , I would like to thank a number of librarians and archivists who helped me dig out the sources for the present study and to learn the ropes of archival research: Caroline Mosley and Katherine Hayes at the Niels Bohr Library; Marie Hallion and Cliff Scroger at the Department of Energy; Margaret Sherry at the Special Collections of Princeton's Firestone Library; Daniel J. Linke of Princeton's Mudd Library; Mitchell Brown and Luan Huang at the library of the Princeton Plasma Physics Laboratory; and Denise Anderson of the Main Library at the University of Iowa. The notation used in the - footnotes is as follows: , AIP: Niels Bohr Library. American Institute of Physics, College Park, MD. AR47/AIP: Joan Lisa Bromberg Papers, 1922-1982, AIP. (I do not specify boxes and folders for items from this collection; at the time of my visits it was unprocessed.) AR155/AIP: the Lewi Tonks papers, 1921-1967, AIP. HO/DOE: Historian's Office of the Department of Energy, Germantown, MD. JAVA/UI: the James A. Van Allen Papers. Special Collections of the Main Library of The University of Iowa. LSP/PU: the Lyman Spitzer Papers, 1914-1997. Special Collections of the Firestone Library at Princeton University. PPPL/PU: Library of the Princeton Plasma Physics Laboratory, Princeton, NJ. RAPS/AIP: Records of the American Physical Society, AIP. ' iv At my home institution, Penn State Altoona, I also was fortunate to have Robert DeWitt as a colleague. My discussions with Bob about his career at the NRL, the Naval Surface Warfare Center, and the Department of Energy, alerted me to the persistent military applications of plasma physics. Bob's aid in helping me understand plasma physics and his generosity in commenting on my work, has been a great boon. Finally, I would like to thank a number of scientists who communicated with me privately and offered information or advice regarding my project: Vincent Chan, C. Stewart Gillmor, Arthur Kantrowitz, Charles Kennel, Robert Piejak, Harry Robertson, David Stem, and James Van Allen. Of course, none of the people named above are responsible for any of the errors or shortcomings of the present study. V TABLE OF CONTENTS page ACKNOWLEDGMENTS iii LIST OF FIGURES viii ABSTRACT ix CHAPTERS 1 INTRODUCTION 1 Cognitive Interconnectedness 8 Institutional Context 13 Cultural Studies 15 Patron Relationships 23 International Politics 32 Summary of the Chapters 34 Review of the PubUshed Literature 41 2 SEPARATE SPECIALTIES: TO 1955 47 Gaseous Electronics 48 Early Gaseous Electronics 48 The Early Twentieth Century 56 Geophysics 63 The Aurora 63 Ionospheric Physics 67 Astrophysics 73 The Second World War 78 3 FOUNDING A DISCIPLINE: 1950-1962 93 Fusion machines 94 Political and Cultural Context 108 Fusion Theory 127 The Great Instauration 143 The Primacy of Fusion Research 143 Plasma Communities 150 Industrial Research 160 The Great Segregation 164 Gaseous Electronics 164 Space Science 169 vi Military Patronage 182 Plasma dynamics 183 High-Altitude Nuclear Tests 193 Conclusions 197 4 CRISIS AND RECOVERY: 1960-1980 200 A Decade of Difficulties 201 Industrial Funding 203 University Plasma Physics Programs 207 Basic Plasma Physics 212 Theory Leading Experiment 216 The Instrumental Tradition 221 Anomalous Diffusion 228 A Precarious Identity 232 The Pake Committee 232 Facing Complexity 240 Instrumental Shift: the Tokamak 246 Instrumental Shift: Inertial-Confmement Fusion 253 Concurrent Developments 261 A Renewed Enthusiasm 262 Big Science 267 Theory and Numerical Simulation 279 Between Fusion, Space, and Astrophysics 288 5 EPILOGUE AND CONCLUSIONS 300 The Consequences of Big Science 309 The Strategic Defense Initiative 320 Persistent Interconnections 324 Space and Astrophysics 325 Gaseous Electronics 329 Containing Plasma Physics 334 REFERENCES 362 BIOGRAPHICAL SKETCH 384 LIST OF FIGURES Figure page 2-1. The glow discharge showing its characteristic regions 53 2-2. Alfven's model of the aurora 76 3- 1. Princeton University's stellarator .....103 3-2. Two simple plasma instabilities 129 3-3. Cross-sectional view showing the intensity of trapped radiation in the two Van Allen Belts 174 3-4. Shock-tube device used at AVCO Research Laboratory 184 4- 1 . The Q machine 1^6 4-2. A variant of the "Kantrowitz-Petschek map" used in the next NRC review after the Pake Report 234 4-3. Laser amplifying system used by Basov and coworkers to heat a pellet of deuterium fuel 257 4-4. Neutral plasma sheet, formed through the interaction of the solar wind with the Earth's magnetosphere 293 5- . 1. Trends in the magnetic fusion community 319 . , viH Abstract of Dissertation Presented to the Graduate School of the University of Florida in Partial Fulfillment of the Requirements for the Degree of Doctor of Philosophy CONTAINING PLASMA PHYSICS: A DISCIPLINARY HISTORY, 1950-1980 By Gary James Weisel August, 2001 Chair: Frederick Gregory , Major Department: History This dissertation investigates the development of plasma physics as a scientific discipline, concentrating on the American community. Themes include the role of patronage in modifying disciplinary research interests, the interrelation of the specialties that compose a discipUne, and disciplinary identity. The study begins by reviewing work on ionized gases accomplished during the late nineteenth and early twentieth centuries, in specialties concerning the Earth's ionosphere, the Aurora, and the discharge of electricity through gases. During the late 1950s and early 1960s, a new plasma specialty, research on controlled thermonuclear fusion energy, dominated the foundation of plasma physics. The political context of the Cold War shaped the discipline, both in terms of its social makeup and its scientific style. Fusion research continued to exert a preponderant influence; during the late 1960s and early 1970s, plasma physics was transformed by research with new fusion machines (the tokamak and inertial-confmement fusion) and by political pressures bom of the anti-war movement and the energy crisis. ix The dissertation highlights the troubled relationship between the fusion community and the other plasma specialties. At the same time, it gives attention to scientists who attempted to link different plasma specialties in their work, especially fusion research, space physics, and astrophysics. There also is discussion of the military applications of plasma physics, such as plasma dynamics and the simulation of nuclear explosions. Throughout its history, the plasma community nurtured visions of plasma physics that not only recognized the radical diversity of plasma behavior but also affirmed the unity of the study of "the fourth state of matter." However, neither the American funding agencies nor the general scientific community accepted such broad visions of the discipline. The plasma community argued for funding more and more on the basis of fusion as a potential source of abundant and clean energy. The outcome was disappointing both for fusion research and for plasma physics. The American funding process proved incapable of the long-term planning needed either to follow through on its fusion commitments or to maintain a modest program of basic plasma research.