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| TUOAA01 |
The EUROnu Project: A High Intensity Neutrino Oscillation Facility in Europe |
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- T.R. Edgecock
STFC/RAL, Chilton, Didcot, Oxon, United Kingdom
- E.H.M. Wildner
CERN, Geneva, Switzerland
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EUROnu is a European Commission funded FP7 Design Study investigating three possible options for a future high intensity neutrino oscillation facility in Europe. These options are a CERN to Frejus Super-Beam, a Neutrino Factory and a Beta Beam. The aims of the project are to undertake the crucial R&D on each of the accelerator facilities and determine their performance and relative cost, including the baseline detectors for each facility. A comparison will then be made and the results reported to the CERN Council as part of the CERN Strategy Review.
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Slides TUOAA01 [7.638 MB]
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| TUOAA02 |
Status of UA9, the Crystal Collimation Experiment in the SPS |
897 |
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- W. Scandale
LAL, Orsay, France
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Funding: CERN, IHEP-Protvino, Imperial-College, INFN, JINR-Dubna, LBNL, PNPI-Gartchina, SLAC
UA9 was operated in the CERN-SPS for more than two years in view of investigating the feasibility of the halo collimation with bent crystals. Silicon crystals 2 mm long with bending angles of about 150 urad were used as primary collimators. The crystal collimation process was steadily achieved through channeling with high efficiency. The crystal orientation was easily set and optimized with the installed goniometer which has an angular reproducibility of about ± 10 μrad. In channeling orientation, the loss rate of the halo particles interacting with the crystal is reduced by a factor of ten, whilst the residual off-momentum halo escaping from the crystal-collimator area is reduced by a factor five. The crystal channeling efficiency of about 75 % is reasonably consistent with simulations and with single pass data collected in the North Area of the SPS. The accumulated observations, shown in this paper, support our expectation that the coherent deflection of the beam halo by a bent crystal should considerably help in enhancing the collimation efficiency in LHC.
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Slides TUOAA02 [4.297 MB]
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| TUOAA03 |
The Linac4 Project at CERN |
900 |
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- M. Vretenar, L. Arnaudon, P. Baudrenghien, C. Bertone, Y. Body, J.C. Broere, O. Brunner, M.C.L. Buzio, C. Carli, F. Caspers, J.-P. Corso, J. Coupard, A. Dallocchio, N. Dos Santos, R. Garoby, F. Gerigk, L. Hammouti, K. Hanke, M.A. Jones, I. Kozsar, J.-B. Lallement, J. Lettry, A.M. Lombardi, L.A. Lopez Hernandez, C. Maglioni, S.J. Mathot, S. Maury, B. Mikulec, D. Nisbet, C. Noels, M.M. Paoluzzi, B. Puccio, U. Raich, S. Ramberger, C. Rossi, N. Schwerg, R. Scrivens, G. Vandoni, J. Vollaire, S. Weisz, Th. Zickler
CERN, Geneva, Switzerland
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As the first step of a long-term programme aiming at an increase in the LHC luminosity, CERN is building a new 160 MeV H− linear accelerator, Linac4, to replace the ageing 50 MeV Linac2 as injector to the Proton-Synchrotron Booster (PSB). Linac4 is an 86-m long normal-conducting linac made of an H− source, a Radio Frequency Quadrupole (RFQ), a chopping line and a sequence of three accelerating structures: a Drift-Tube Linac (DTL), a Cell-Coupled DTL (CCDTL) and a Pi-Mode Structure (PIMS). The civil engineering has been recently completed, and construction of the main accelerator components has started with the support of a network of international collaborations. The low-energy section up to 3 MeV including a 3-m long 352 MHz RFQ entirely built at CERN is in the final construction phase and is being installed on a dedicated test stand. The present schedule foresees beam commissioning of the accelerator in the new tunnel in 2013/14; the moment of connection of the new linac to the CERN accelerator chain will depend on the LHC schedule for long shut-downs.
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Slides TUOAA03 [10.347 MB]
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