This book is intended to dispel the notion that collective phenomena are
an obscure and inaccessible topic. Having become increasingly important
in modern storage rings, collective e?ects deserve to become part of the
general education in accelerator physics.
ItriedtowritethebookIwaslookingforwhenIstartedtostudycollective
instabilities: an introduction that can be read from cover to cover with
m- erate e?ort and familiarizes the reader with the basic concepts.
Self-contained appendices contain what I considered worth discussing but
might impair the readability of the main text, such as a reminder of
basic relations and some background information on selected topics.
Finally, an extensive list of r- erences was compiled (with some
emphasis on accessibility of the source) in order to facilitate the
search for more detailed information. A previous version of the present
text was submitted in German language as Habilitationsschrift - a
postdoctoral thesis, which is a peculiarity of the German academic
system - to the Humboldt University of Berlin. It grew from my
occupation with collective phenomena over ten years at the thi-
generation synchrotron light source BESSY II. This has some consequences
regarding the character of this text: -
Thereisaclearemphasisonsynchrotronlightsourcesandelectronstorage rings.
However, many concepts (wake ?eld, impedance, beam spectrum, beam
lifetime, etc.) are quite general. - The selection of material re?ects
my personal experience and some readers may want to skip over details
that I considered important, while others may ?nd that their favorite
topic was not covered in su?cient detail.
