| Paper |
Title |
Page |
| TUPCH148 |
201 MHz Cavity R&D for MUCOOL and MICE
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1367 |
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- D. Li, S.P. Virostek, M.S. Zisman
LBNL, Berkeley, California
- A. Bross, A. Moretti, B. Norris
Fermilab, Batavia, Illinois
- J. Norem
ANL, Argonne, Illinois
- H.L. Phillips, R.A. Rimmer, M. Stirbet
Jefferson Lab, Newport News, Virginia
- M. Reep, D.J. Summers
UMiss, University, Mississippi
- Y. Torun
IIT, Chicago, Illinois
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We describe the design, fabrication and preliminary testing of the prototype 201 MHz copper cavity for a muon ionization cooling channel. Application of the cavity includes the Muon Ionization Cooling Experiment (MICE) as well as cooling channels for a neutrino factory or a muon collider. This cavity was developed by the US MUCOOL collaboration and is being tested in the MUCOOL Test Area (MTA) at Fermilab. In order to achieve a high accelerating gradient, the cavity beam irises are terminated by a pair of curved, thin beryllium windows. Several of the fabrication methods developed for this cavity and the windows are novel and offer significant cost savings compared to conventional construction methods. Cavity thermal and RF performance will be compared to FEA modeling predictions. RF commissioning results will be presented.
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| MOPCH182 |
The JLAB Ampere-class Cryomodule Conceptual Design
|
490 |
| |
- R.A. Rimmer, G. Ciovati, E. Daly, T. Elliott, J. Henry, W.R. Hicks, P. Kneisel, S. Manning, R. Manus, J.P. Preble, K. Smith, M. Stirbet, L. Turlington, L. Vogel, H. Wang, K. Wilson, G. Wu
Jefferson Lab, Newport News, Virginia
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For the next generation of compact high-power FELs a new cryomodule is required that is capable of accelerating up to Ampere levels of beam current. Challenges include strong HOM damping, high HOM power and high fundamental-mode power (in operating scenarios without full energy recovery). For efficient use of space a high real-estate gradient is desirable and for economic operation good fundamental-mode efficiency is important. The technology must also be robust and should be based on well-proven and reliable technologies. For Ampere-class levels of beam current both halo interception and beam break-up (BBU) are important considerations. These factors tend to drive the designs to lower frequencies where the apertures are larger and the transverse impedances are lower. To achieve these goals we propose to use a compact waveguide-damped multi-cell cavity packaged in an SNS-style cryomodule.
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