Physics – Plasma Physics
Scientific paper
May 2006
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2006ppcf...48..715m&link_type=abstract
Plasma Physics and Controlled Fusion, Volume 48, Issue 5, pp. 715-716 (2006).
Physics
Plasma Physics
Scientific paper
This book outlines the quest for fusion energy. It is presented in a form which is accessible to the interested layman, but which is precise and detailed for the specialist as well.
The book contains 12 detailed chapters which cover the whole of the intended subject matter with copious illustrations and a balance between science and the scientific and political context. In addition, the book presents a useful glossary and a brief set of references for further non-specialist reading.
Chapters 1 to 3 treat the underlying physics of nuclear energy and of the reactions in the sun and in the stars in considerable detail, including the creation of the matter in the universe. Chapter 4 presents the fusion reactions which can be harnessed on earth, and poses the fundamental problems of realising fusion energy as a source for our use, explaining the background to the Lawson criterion on the required quality of energy confinement, which 50 years later remains our fundamental milestone.
Chapter 5 presents the basis for magnetic confinement, introducing some early attempts as well as some straightforward difficulties and treating linear and circular devices. The origins of the stellarator and of the tokamak are described. Chapter 6 is not essential to the mission of usefully harnessing fusion energy, but nonetheless explains to the layman the difference between fusion and fission in weapons, which should help the readers understand the differences as sources of peaceful energy as well, since this popular confusion remains a problem when proposing fusion with the `nuclear' label. Chapter 7 returns to energy sources with laser fusion, or inertial confinement fusion, which constitutes both military and civil research, depending on the country. The chapter provides a broad overview of the progress right up to today's hopes for fast ignition.
The difficulty of harnessing fusion energy by magnetic or inertial confinement has created a breeding ground for what the authors call `false trails', since it is so tempting to produce a `backroom' solution to mankind's hunger for energy. Unfortunately, Chapter 8 can only regret that none of them has passed closer peer review.
Chapters 9 and 10 concentrate on the `tokamak' concept for magnetic confinement, the basis for the JET and ITER projects, as well as for a wealth of smaller, national projects. The hopes and the disappointments are well and very frankly illustrated. The motivation for building a project of the size of ITER is made very clear. Present fusion research cannot forget that its mission is to develop an industrial reactor, not just a powerful research tool. Chapter 11 presents the major challenges between ITER and a reactor.
Finally, Chapter 12 reminds us of why we need energy, why we do not have a credible solution at the mid-term (20 years) and why we have no solution in the longer term. The public awareness of this is growing, at last, even though the arguments were all on the table in the 1970's. This chapter therefore closes the book by bringing the reader back to earth rather suitably with the hard reality of energy needs and the absence of credible policies.
This book has already received impressive approval among a wide range of people, since it so evidently succeeds in its goal to explain Fusion to many levels of reader. Gary McCracken and Peter Stott (one time editor of Plasma Physics and Controlled Fusion) both dedicated their careers to magnetic confinement fusion, mostly at Culham working on UKAEA projects and later on the JET project. They were both deeply involved with international collaborations and both were working abroad when they retired. The mixture between ideas, developments and people is most successfully developed. They clearly underline the importance of strong international collaboration on which this field depends. This open background is tangible in their recently published work, in which they have tried to communicate their love and understanding of this exciting field to the non-specialist. Their attempt has resulted in a remarkable success, filling a hole in the available literature.
The format of this book, with boxed technical details, allows the casual reader to browse without being trapped by excessive detail, whereas the information is still there for the more assiduous reader. The only technical fault is the marring of the presentation by some unresolved production details in chapter 10.
With the long-awaited decision to site ITER in Europe, there will inevitably be a strong demand for more information on fusion research for non-specialists, simply to understand what is behind this large project. This book fits the bill. It is written with technical accuracy but without resort to mathematics—a notably tricky target. The non-specialist wishing to find out about the field of fusion research, whether working as a journalist, administrator, secretary, politician, engineer or technician, will find a wealth of detail expressed in an accessible language. The specialist will be surprised by the precision of the text, and by the depth of the historical basis to this research. He will learn much, even if he is already familiar with the current state of art of fusion research. The younger researchers will find a clear history of their chosen field.
The reviewer knows of no other book which has met this difficult goal with such ease, and strongly recommends it for the educated layman as well as for the ITER generation of younger physicists who did not live through the evolutionary period of fusion research, with its doubts, disappointments and successes.
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