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  Low Power Measurements on a Finger Drift Tube Linac

Kühnel, K., Schempp, A., & Welsch, C. (2004). Low Power Measurements on a Finger Drift Tube Linac. In Proceedings of LINAC 2004 (pp. 854-856).

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Item Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-8D66-E Version Permalink: https://hdl.handle.net/11858/00-001M-0000-0011-8D67-C
Genre: Conference Paper

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Linac2004_Kuehnel_Welsch.pdf (Preprint), 217KB
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 Creators:
Kühnel, K.1, Author           
Schempp, A.2, Author
Welsch, C.3, Author           
Affiliations:
1Division Prof. Dr. Joachim H. Ullrich, MPI for Nuclear Physics, Max Planck Society, ou_904547              
2IAP Frankfurt, Germany, ou_persistent22              
3Carsten Welsch - Helmholtz University Group, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society, ou_907552              

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 Abstract: The efficiency of RFQs decreases at particle energies higher than a few MeV/u and thus typically DTL structures are used in this energy region. However, the rf field in the gap always has a defocusing influence on the beam. In order to compensate this effect, fingers with quadrupole symmetry were added to the drift tubes, the focusing fingers do not need an additional power source or feed through. Beam dynamics have been studied with the code RFQSIM. Detailed analysis of the field distribution was done and the geometry of the finger array has been optimized with respect to beam dynamics. A prototype cavity with finger drift tubes was built and low power measurements were done. In this contribution, the results of the rf simulation with Microwave Studio are compared to bead perturbation measurements and the focusing effect on the beam is discussed.

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Language(s): eng - English
 Dates: 2004
 Publication Status: Issued
 Pages: -
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 Rev. Type: Internal
 Identifiers: eDoc: 207569
URI: http://www.linac2004.de/e8/index_eng.html
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Title: XXII International Linear Accelerator Conference (LINAC2004)
Place of Event: Lübeck, Germany
Start-/End Date: 2004-08-16 - 2004-08-20

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Title: Proceedings of LINAC 2004
Source Genre: Proceedings
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Pages: - Volume / Issue: - Sequence Number: - Start / End Page: 854 - 856 Identifier: -