PAC07 - List of Authors (Ferrari, A.)

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Ferrari, A.

Paper	Title	Page
TUPAN095	Design and Performance of the CNGS Secondary Beam Line	1601
	E. Gschwendtner, L. Bruno, K. Elsener, A. Ferrari, M. Meddahi, A. Pardons, S. Rangod CERN, Geneva A. Guglielmi INFN/LNL, Legnaro, Padova P. R. Sala INFN-Milano, Milano
	An intense muon-neutrino beam (10¹⁷ nu-mu/day) is generated at CERN and directed towards the Gran Sasso National Laboratory, LNGS, in Italy, 732 km away from CERN. The muon-neutrinos are produced in association with muons in the decay of the pions and kaons created in the target. In the presently approved physics programme, it is foreseen to run the CNGS facility with 4.5 · 10¹⁹ protons/year for five years. During a CNGS cycle, i.e. every 6s, two nominal SPS extractions of 2.4 ·10¹³ protons each at 400GeV/c are sent down the proton beam line to the target. The CNGS secondary beam line, starting with the target, has to cope with this situation, which pushes the beam line equipment and instrumentation to the limits of radiation hardness, mechanical stresses, etc. during the CNGS operation. An overview of the CNGS secondary beam line will be shown. Emphasis will be on the target, the magnetic focusing lenses (horn and reflector) and the muon monitors. The performance of the secondary beam line during beam commissioning and physics operation will be discussed and measurements compared with simulations.
THPMN057	New Concept for a CLIC Post-Collision Extraction Line	2835
	A. Ferrari UU/ISV, Uppsala
	Funding: This work is supported by the Commission of the European Communities under the 6th Framework Programme "Structuring the European Research Area", with contract number RIDS-011899. Strong beam-beam effects at the interaction point of a high-energy e⁺e^- linear collider such as CLIC lead to an emittance growth for the outgoing beams, as well as to the production of beamstrahlung photons and e⁺e^- coherent pairs. We present a conceptual design of the post-collision line for CLIC at 3 TeV, which separates the various components of the outgoing beam in a vertical magnetic chicane and then transports them to their respective dump.
THPMN058	Beam Dynamics Studies in the CLIC Injector Linac	2838
	A. Ferrari UU/ISV, Uppsala A. Latina, L. Rinolfi, F. Tecker CERN, Geneva
	The CLIC Injector Linac has to accelerate both electron and positron main beams from 200 MeV up to 2.42 GeV prior to their injection into the pre-damping rings. Its 26 accelerating structures operate at 1.875 GHz, with a loaded gradient of 17 MV/m. A FODO lattice that wraps the accelerating structures at the beginning of the linac, followed by a succession of triplet lattices between the accelerating structures, is proposed. The large transverse emittance (9200 mm.mrad), bunch length (5 mm) and energy spread (7 MeV) of the positron beam set constraints on the linac in order to reach acceptable characteristics at 2.42 GeV for the injection into the pre-damping ring. The use of a bunch compressor at the entrance of the linac is an option in order to achieve good performance in both the longitudinal and transverse phase spaces. Tracking studies of both electron and positron beams in the linac have been performed and are presented.
THPMN063	CTF3 Combiner Ring Commissioning	2850
	F. Tecker, R. Corsini, S. Doebert, P. K. Skowronski, P. Urschutz CERN, Geneva C. Biscari, A. Ghigo INFN/LNF, Frascati (Roma) E. Bressi CNAO Foundation, Milan A. Ferrari UU/ISV, Uppsala
	CLIC Test Facility 3 (CTF3) has the objective to demonstrate the remaining feasibility issues of the CLIC two-beam technology for a future multi-TeV linear collider. One key issue is the efficient generation of a very high current 'drive beam' that serves as the power source for the acceleration of the main beam to high energy. This large current beam is produced by interleaving bunches in a combiner ring using transverse deflecting RF cavities. The 84 m long CTF3 combiner ring and the connecting transfer line have been recently installed and put into operation. The latest commissioning results will be presented.
WEOCAB01	Design of the Beam Delivery System for the International Linear Collider	1985
	A. Seryi, J. A. Amann, R. Arnold, F. Asiri, K. L.F. Bane, P. Bellomo, E. Doyle, A. F. Fasso, L. Keller, J. Kim, K. Ko, Z. Li, T. W. Markiewicz, T. V.M. Maruyama, K. C. Moffeit, S. Molloy, Y. Nosochkov, N. Phinney, T. O. Raubenheimer, S. Seletskiy, S. Smith, C. M. Spencer, P. Tenenbaum, D. R. Walz, G. R. White, M. Woodley, M. Woods, L. Xiao SLAC, Menlo Park, California I. V. Agapov, G. A. Blair, S. T. Boogert, J. Carter Royal Holloway, University of London, Surrey M. Alabau, P. Bambade, J. Brossard, O. Dadoun LAL, Orsay M. Anerella, A. K. Jain, A. Marone, B. Parker BNL, Upton, Long Island, New York D. A.-K. Angal-Kalinin, C. D. Beard, J.-L. Fernandez-Hernando, P. Goudket, F. Jackson, J. K. Jones, A. Kalinin, P. A. McIntosh STFC/DL/ASTeC, Daresbury, Warrington, Cheshire R. Appleby UMAN, Manchester J. L. Baldy, D. Schulte CERN, Geneva L. Bellantoni, A. I. Drozhdin, V. S. Kashikhin, V. Kuchler, T. Lackowski, N. V. Mokhov, N. Nakao, T. Peterson, M. C. Ross, S. I. Striganov, J. C. Tompkins, M. Wendt, X. Yang Fermilab, Batavia, Illinois K. Buesser DESY, Hamburg P. Burrows, G. B. Christian, C. I. Clarke, A. F. Hartin OXFORDphysics, Oxford, Oxon G. Burt, A. C. Dexter Cockcroft Institute, Warrington, Cheshire J. Carwardine, C. W. Saunders ANL, Argonne, Illinois B. Constance, H. Dabiri Khah, C. Perry, C. Swinson JAI, Oxford O. Delferriere, O. Napoly, J. Payet, D. Uriot CEA, Gif-sur-Yvette C. J. Densham, R. J.S. Greenhalgh STFC/RAL, Chilton, Didcot, Oxon A. Enomoto, S. Kuroda, T. Okugi, T. Sanami, Y. Suetsugu, T. Tauchi KEK, Ibaraki A. Ferrari UU/ISV, Uppsala J. Gronberg LLNL, Livermore, California Y. Iwashita Kyoto ICR, Uji, Kyoto W. Lohmann DESY Zeuthen, Zeuthen L. Ma STFC/DL, Daresbury, Warrington, Cheshire T. M. Mattison UBC, Vancouver, B. C. T. S. Sanuki University of Tokyo, Tokyo V. I. Telnov BINP SB RAS, Novosibirsk E. T. Torrence University of Oregon, Eugene, Oregon D. Warner Colorado University at Boulder, Boulder, Colorado N. K. Watson Birmingham University, Birmingham H. Y. Yamamoto Tohoku University, Sendai
	The beam delivery system for the linear collider focuses beams to nanometer sizes at the interaction point, collimates the beam halo to provide acceptable background in the detector and has a provision for state-of-the art beam instrumentation in order to reach the physics goals. The beam delivery system of the International Linear Collider has undergone several configuration changes recently. This paper describes the design details and status of the baseline configuration considered for the reference design.
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