Pagani, C.

Paper	Title	Page
MOPKF027	Optimizing the PITZ Electron Source for the VUV-FEL	360
	M. Krasilnikov, J. Bähr, U. Gensch, H.-J. Grabosch, J.H. Han, D. Lipka, V. Miltchev, A. Oppelt, B. Petrosyan, D. Pose, L. Staykov, F. Stephan DESY Zeuthen, Zeuthen K. Abrahamyan YerPhI, Yerevan W. Ackermann, R. Cee, W.F.O. Müller, S. Setzer, T. Weiland TEMF, Darmstadt G. Asova, G. Dimitrov, I. Tsakov INRNE, Sofia I. Bohnet, J.-P. Carneiro, K. Floettmann, S. Riemann, S. Schreiber DESY, Hamburg M.V. Hartrott, E. Jaeschke, D. Krämer, R. Richter BESSY GmbH, Berlin P. Michelato, L. Monaco, C. Pagani, D. Sertore INFN/LASA, Segrate (MI) J. Rossbach Uni HH, Hamburg W. Sandner, I. Will MBI, Berlin
	The goal of the Photo Injector Test Facility at DESY Zeuthen (PITZ) is to test and optimize electron sources for Free Electron Lasers and future linear colliders. At the end of 2003 the first stage of PITZ (PITZ1) has been successfully completed, resulting in the installation of the PITZ RF gun at the Vacuum Ultra Violet - Free Electron Laser (VUV-FEL) at DESY Hamburg. The main results achieved during the PITZ1 extensive measurement program are discussed in this paper. A minimum normalized beam emittance of about 1.5 pi mm mrad for 1 nC electron bunch charge has been reached by optimizing numerous photo injector parameters, e.g. longitudinal and transverse profiles of the photocathode laser, RF phase, main and bucking solenoid current. The second stage of PITZ (PITZ2), being a large extension of the facility and its research program, has started now. Recent progress on the PITZ2 developments will be reported as well.
WEYCH02	Technical Issues for Large Accelerators based on High Gradient SC Cavities	137
	C. Pagani, C. Pagani DESY, Hamburg
	The perspective to build large accelerators based on high gradient superconducting cavities is posing a number of new problems that have been addressed in the preparation of the TESLA project. Starting from the experience gained with the past large installations, such as LEP2 at CERN and CEBAF at JLab, in this paper I discuss the new demands and the solution envisaged. Industrial production issues are focussed in terms of large scale production, reviewed quality control criteria and cost reduction. The impact on component design and engineering together with the expected improvements in term of performances and reliability are also outlined.
	Video of talk
	Transparencies
WEYCH02	Technical Issues for Large Accelerators based on High Gradient SC Cavities	137
	C. Pagani, C. Pagani DESY, Hamburg
	The perspective to build large accelerators based on high gradient superconducting cavities is posing a number of new problems that have been addressed in the preparation of the TESLA project. Starting from the experience gained with the past large installations, such as LEP2 at CERN and CEBAF at JLab, in this paper I discuss the new demands and the solution envisaged. Industrial production issues are focussed in terms of large scale production, reviewed quality control criteria and cost reduction. The impact on component design and engineering together with the expected improvements in term of performances and reliability are also outlined.
	Video of talk
	Transparencies
MOPLT057	Proposal of a Strong RF Focusing Experiment at DAFNE	683
	A. Gallo, D. Alesini, G. Benedetti, M.E. Biagini, C. Biscari, R. Boni, M. Boscolo, A. Clozza, G.O. Delle Monache, G. Di Pirro, A. Drago, A. Ghigo, S. Guiducci, M. Incurvati, C. Ligi, F. Marcellini, G. Mazzitelli, C. Milardi, L. Pellegrino, M.A. Preger, P. Raimondi, R. Ricci, U. Rotundo, C. Sanelli, M. Serio, F. Sgamma, B. Spataro, A. Stecchi, A. Stella, F. Tazzioli, C. Vaccarezza, M. Vescovi, M. Zobov INFN/LNF, Frascati (Roma) E. Levichev, P.A. Piminov BINP SB RAS, Novosibirsk C. Pagani INFN/LASA, Segrate (MI)
	The strong RF focusing is a recently proposed technique to obtain short bunches at the interaction point in the next generation colliders. A large momentum compaction factor together with a very high RF gradient across the bunch provide a modulation of the bunch length along the ring, which can be minimized at the Interaction Point (IP). No storage ring has been so far operated in such a regime, since it requires uncommonly high synchrotron tune values. In this paper we present the proposal of creating the experimental conditions to study the strong RF focusing in DAFNE. The proposed machine lattice providing the required high momentum compaction value, the upgrade of the RF system including the installation of a multi-cell superconducting cavity, the upgrade of the cryogenic plant and a list of the possible beam experiments are illustrated and discussed.
TUPKF026	RF Tests of the Beta=0.5 Five Cell TRASCO Cavities	1024
	A. Bosotti, C. Pagani, P. Pierini INFN/LASA, Segrate (MI) J.P. Charrier, B. Visentin CEA/DSM/DAPNIA, Gif-sur-Yvette G. Ciovati, P. Kneisel Jefferson Lab, Newport News, Virginia
	Two complete 5 cell superconducting cavities at b=0.5 have been designed and fabricated. The cavities have been designed to minimize peak electric and magnetic fields, with a goal of 8.5 MV/m of accelerating gradient, at a Q > 5E9. The cavities are currently in the testing stage and the results of the vertical tests will be presented at this conference.
WEPKF035	Analysis of the Cold Mass Displacements at the TTF	1681
	A. Bosotti, C. Pagani, P. Pierini INFN/LASA, Segrate (MI) R. De Monte, M. Ferianis ELETTRA, Basovizza, Trieste R. Lange DESY, Hamburg
	Few of the TTF cryomodules have been equipped with wire position monitors (WPM) in order to monitor on line the displacements of the cold mass to verify alignment stability and reproducibility . Based on the operation experience of the first prototypical cryomodules, equipped with up to 36 WPMs distributed in two strings, on the last generation cryomodules a single string of 7 sensors has been installed. Here we review and analyze the data collected so far to prove that the the proposed cryomodule design is consistent with the TESLA alignment requirements.