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Nuclear Fission And Atomic Energy (Hardcover)
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Nuclear Fission And Atomic Energy (Hardcover)
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NUCLEAR FISSION and ATOMIC ENERGY by WILLIAM E. STEPHENS. Contents
include: Foreword vii Editors Preface ix Chapter 1. Discovery of
Fission 1 2. Production of Fission 6 3. Fission Fragments 16 4.
Fission Products 22 5. Secondary Neutrons 43 6. Heavy Nuclei 50 7.
Theory of Fission 67 8. Dynamics of Fission 92 9. Early Work on
Chain Reactions 117 10. Slow Neutron Chain Reactions Piles 133 11.
Fast Neutron Chain Reaction 171 12. Separation of Isotopes 181 13.
Chemical Separation Methods Isolation of Plutonium 222 14.
Potentialities of Fission Techniques 234 Bibliography ... 259
Author Index 281 Subject Index 287. FOREWORD: FREE and unrestricted
research in nuclear physics ceased abruptly in 1941. Activity in
the field went underground and certain aspects were the subject of
intense study and investigation in secret under the forced draft of
military urgency and unlimited support. It emerged on August 6,
1945, with the most destructive explosion that has ever been
produced by man. The same dra matic event answered affirmatively
the outstanding question which had engaged nuclear physicists
previously Is a self-sustaining nu clear chain reaction possible
The successful culmination of the work of the Manhattan District in
the explosion of the bombs over Japan punctuated the end of the war
and announced the scientific fact that nuclear chain reactions
could be brought about. With the cessation of hostilities nuclear
physicists have re turned from a wide variety of war research
assignments to this, their chosen field. The obvious first step in
resuming programs of fundamental research has been a review of the
literature and a taking of scientific stock in the light of
available information. Atthe University of Pennsylvania a series of
seminars was conducted by Dr. Stephens and the staff of the
Department of Physics resi dent in the autumn of 1945, for the
purpose of reviewing all freely available information and
reorienting the interests of the research group. The extensive
examination of all the pertinent literature at their disposal and
the careful study of its implications in the light of present
common scientific knowledge has been of great value in the planning
of a research program at the University of Pennsylvania. It is in
the hope that the efforts of this group may serve a much broader
purpose in assisting their scientific col leagues elsewhere to
resume their research programs or enable them to enter their field
of fundamental investigation that these seminar notes have been
edited for publication. Unfortunately this book perforce marks a
departure from traditional scientific publications, a departure
which it is hoped is only a temporary result of abnormal post-war
conditions. The authors of this book, in common with authors of
reviews in other branches of physical science, have dealt only with
information that is available to all. But unlike authors of pre-war
treatises they are aware that there exists a body of pertinent
knowledge inaccess ible to them. To avoid any possible imputation
of inadvertent breach of security they have been at pains not to
discuss these topics with any persons in possession of classified
knowledge con cerning them. Though a more complete book on the
subject might be written by men who have participated in the atomic
bomb proj ect, such persons are at present legally precluded from
such an undertaking. The very ignorance of the authorsof this book
thus enables them to contribute their special training to the
writing of it as a contribution to the advancement of knowledge in
the best scientific tradition...
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