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Neutrino Factory/Muon Collider Document 62-v1

Deflection measurements of thin foils for the muon cooling channel RF cavities

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Document type:
MuCool Note
Submitted by:
John Urish
Updated by:
John Urish
Document Created:
14 Oct 1999, 12:00
Contents Revised:
14 Oct 1999, 12:00
Metadata Revised:
14 Oct 1999, 12:00
Actually Revised:
14 Sep 2006, 13:35
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The RF accelerating section of the muon cooling channel benefits from high accelerating gradient and high shunt impedance. One means of achieving this is to use interleaved chains of pillbox cavities, with a phase shift of _/2 between sets of cavities. RF isolation between adjacent cells is achieved by the presence of thin Be foils, through which the muon beam passes, and which define one surface of the "pillbox" cavities. Thus configured, the accelerating field is equal to the surface field, and is maximum on the cavity axis. Engineering such foils to successfully operate in a demanding environment with RF heating and deformation of the foil presents a challenge. This note describes experiments at room temperature to measure the temperature distribution and deformation of thin foil windows, in particular Be windows for the above application.
Posted muc0062.pdf to WWW
Posted by corlett
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Notes and Changes:
J. Corlett, N. Hartman, D. Li, J. Rasson, D. Turler
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