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This book provides a brief exposition of the principles of beam
physics and particle accelerators with an emphasis on numerical
examples employing readily available computer tools. However, it
avoids detailed derivations, instead inviting the reader to use
general high-end languages such as Mathcad and Matlab, as well as
specialized particle accelerator codes (e.g. MAD, WinAgile,
Elegant, and others) to explore the principles presented. This
approach allows readers to readily identify relevant design
parameters and their scaling. In addition, the computer input files
can serve as templates that can be easily adapted to other related
situations. The examples and computer exercises comprise basic
lenses and deflectors, fringe fields, lattice and beam functions,
synchrotron radiation, beam envelope matching, betatron resonances,
and transverse and longitudinal emittance and space charge. The
last chapter presents examples of two major types of particle
accelerators: radio frequency linear accelerators (RF linacs) and
storage rings. Lastly, the appendix gives readers a brief
description of the computer tools employed and concise instructions
for their installation and use in the most popular computer
platforms (Windows, Macintosh and Ubuntu Linux). Hyperlinks to
websites containing all relevant files are also included. An
essential component of the book is its website (actually part of
the author's website at the University of Maryland), which contains
the files that reproduce results given in the text as well as
additional material such as technical notes and movies.
This book provides a brief exposition of the principles of beam
physics and particle accelerators with an emphasis on numerical
examples employing readily available computer tools. However, it
avoids detailed derivations, instead inviting the reader to use
general high-end languages such as Mathcad and Matlab, as well as
specialized particle accelerator codes (e.g. MAD, WinAgile,
Elegant, and others) to explore the principles presented. This
approach allows readers to readily identify relevant design
parameters and their scaling. In addition, the computer input files
can serve as templates that can be easily adapted to other related
situations. The examples and computer exercises comprise basic
lenses and deflectors, fringe fields, lattice and beam functions,
synchrotron radiation, beam envelope matching, betatron resonances,
and transverse and longitudinal emittance and space charge. The
last chapter presents examples of two major types of particle
accelerators: radio frequency linear accelerators (RF linacs) and
storage rings. Lastly, the appendix gives readers a brief
description of the computer tools employed and concise instructions
for their installation and use in the most popular computer
platforms (Windows, Macintosh and Ubuntu Linux). Hyperlinks to
websites containing all relevant files are also included. An
essential component of the book is its website (actually part of
the author's website at the University of Maryland), which contains
the files that reproduce results given in the text as well as
additional material such as technical notes and movies.
Je suis seule ce soir. Tout a coup une voix forte d'homme retentit:
- Ouvrez la porte Tout de suite, je vois plusieurs hommes armes
vetus d'uniformes de brousse qui se tiennent dehors sous ma
fenetre. - Ouvrez cette porte tout de suite ... et j'ai cueilli des
orchidees est la chronique d'un enlevement ordinaire en Colombie.
En quelques secondes par une belle nuit de l'annee 1996, la vie de
Maeva SHELTON va basculer dans un cauchemar. Son amour des
orchidees qui ornent les billets de banques colombiens deviendra
son seul espoir de liberte. Elle restera durant 10 jours l'otage
des guerilleros de l'ELN. Maeva fait le recit de cette captivite
avec sa douceur de femme passionnee par la culture des fleurs et
plus particulierement des orchidees et des bonsais, sa tendresse
pour la Colombie, son pays d'accueil, et le souvenir de sa terre
d'origine, Tahiti. Mais elle cherche aussi a comprendre et a
partager. Comprendre une guerre qui fait 25.000 morts par an, ces
guerilleros qui enrolent 11.000 enfants dans leur combat, et ce
pays qui reste le premier exportateur de cocaine. Maeva est
etonnante, malgre la peur, elle tente de partager ses passions avec
ses ravisseurs, comme avec ses lecteurs, et en conclusion elle nous
offre quelques recettes culinaires de son pays d'adoption.
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