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Title |
Page |
| MOPLS090 |
Design of a Strip-line Extraction Kicker for CTF3 Combiner Ring
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762 |
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- I. Rodriguez, F. Toral
CIEMAT, Madrid
- L. García-Tabarés
CEDEX, Madrid
- A. Ghigo, F. Marcellini
INFN/LNF, Frascati (Roma)
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The new CLIC test facility (CTF3) is the latest stage to prove the technical feasibility of the CLIC project. An extraction kicker is necessary for the combiner ring, and it will be a strip-line type device due to lower coupling impedances and straightforward fabrication. The field uniformity together with a correct beam dynamics are the most challenging issues of this design. The main parameters of the kicker are analytically calculated using standard analytic formulae. The numeric modelling and simulation of several possible straight sections are reported, and the characteristic impedance is matched with the 50 Ω load. The field homogeneity, the kick angle and the scattering parameters are calculated in a 3D finite element model. Several manufacturing issues for the first prototype are also outlined.
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| WEPLS096 |
Design and Calculation of a Superferric Combined Magnet for XFEL
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2598 |
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- F. Toral, P. Abramian, J.L. Gutierrez, E. Rodriguez, I. Rodriguez, S. Sanz, C. Vazquez
CIEMAT, Madrid
- R. Bandelmann, H. Brueck
DESY, Hamburg
- J. Calero, L. García-Tabarés
CEDEX, Madrid
- J. Lucas
Elytt Energy, Madrid
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A planned European X-ray Free Electron Laser so-called XFEL is being developed within the framework of an international collaboration. The design and fabrication of a prototype of a combined magnet is part of the Spanish contribution to this project. This magnet consists of a superferric quadrupole for focusing and two dipoles (horizontal and vertical) for steering, glued around the beam tube. The magnet will be operated in a superfluid helium bath. The aperture is 78 mm. The quadrupole gradient is 35 T/m whereas each dipole field is about 0.04 T. The magnetic saturation is limited to 5% at nominal current, which is quite a challenging specification for such aperture and gradient. As the overall length of the helium vessel is just 300 mm, the calculation of the magnetic field is a pure 3-D problem which has been solved and optimized using two different FEM codes to cross-check the results. This paper also gives some guidelines about the fabrication techniques most suitable for the first prototype, which is now under construction.
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