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Comment on the invariant-envelope solution in rf photoinjectors

✍ Scribed by Chun-xi Wang

Publisher
Elsevier Science
Year
2006
Tongue
English
Weight
181 KB
Volume
557
Category
Article
ISSN
0168-9002

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✦ Synopsis

The beam envelope equation has been used to address the beam dynamics in rf photoinjectors. A special solution of the envelope equation, known as the invariant envelope, plays a critical role in the theory of emittance compensation. In this comment, I will present a different view of the invariant envelope solution that better delineates its properties and simplifies the picture of beam dynamics.

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Complex envelope displacement analysis seems to be a promising approach to analyze high-frequency structural problems and is expected to be useful to study structural-acoustic coupled problems. However, in the original derivation of the method it was shown the presence of a troublesome spurious solu