hadron

Paper	Title	Other Keywords	Page
MOXBCH01	Industrial Technology for Unprecendented Energy and Luminosity: the Large Hadron Collider	collider, vacuum, cryogenics	6
	P. Lebrun CERN, Geneva
	With over 2.7 billion Swiss francs procurement contracts under execution in industry and the installation of major technical systems proceeding in its first 3.3 km sector, the Large Hadron Collider (LHC) construction is now in full swing at CERN, the European Organization for Nuclear Research. The LHC is not only the most challenging particle accelerator under construction, it is also the largest global project ever for a scientific instrument based on advanced technology. Starting from accelerator performance requirements, we recall how these can be met by an appropriate combination of technologies, such as high-field superconducting magnets, superfluid helium cryogenics, beam and insulation vacuum or power electronics, with particular emphasis on the developments required to meet demanding specifications, and the industrialization issues which had to be solved for achieving series production of precision components under tight quality assurance and within limited resources. This provides the opportunity for reviewing the production status of the different systems and the progress of the project.
	Video of talk
	Transparencies
MOYCH01	The TESLA XFEL Project	linac, collider, vacuum, cryogenics	11
	H. Weise DESY, Hamburg
	The overall layout of the X-Ray FEL to be built in international collaboration at DESY will be described. This includes the envisaged operation parameters for the linear accelerator which will use TESLA technology. Main emphasis is put on the specification of the superconducting accelerator modules. Other linac components will be described as well. Work packages needed to finalize the linac design will be presented. A summary of the status of the preparation work will be given.
	Video of talk
	Transparencies
MOYCH02	Physics Challenges for ERL Light Sources	collider, extraction, vacuum, cryogenics	16
	L. Merminga Jefferson Lab, Newport News, Virginia
	We present an overview of the physics challenges encountered in the design and operation of Energy Recovering Linac (ERL) based light sources. These challenges include the generation and preservation of low emittance, high-average current beams, manipulating and preserving the transverse and longitudinal phase space, control of the multipass beam breakup instability, efficient extraction of higher order mode power and RF control and stability of the superconducting cavities. These key R&D issues drive the design and technology choices for proposed ERL light sources. Simulations and calculations of these processes will be presented and compared with experimental data obtained at the Jefferson Lab FEL Upgrade, a 10 mA ERL light source presently in commissioning, and during a 1 GeV demonstration of energy recovery at CEBAF.
	Video of talk
	Transparencies
MOYCH03	Superconducting RF Cavities for Synchrotron Light Sources	damping, synchrotron, extraction, impedance	21
	P. Marchand SOLEIL, Gif-sur-Yvette
	Superconducting (sc) RF systems are already operational or planned in several third generation synchrotron light sources. In these machines, which require relatively low RF accelerating voltage and high beam loading, the advantage of using the sc technology essentially resides in the fact that one can achieve an efficient damping of the cavity Higher Order Modes (HOM) while still maintaining a high fundamental shunt impedance. The strong HOM damping practically is realised following two approaches : a) use of absorber material, located inside the cavity tube cut-off, through which the HOM propagate and then are damped (Cornell/KEK designs); b) two-cell cavity with coaxial HOM dampers located on the tube connecting the two cells (SOLEIL design). Third harmonic idle sc cavities (1.5 GHz) of the SOLEIL type are already operational in the Swiss Light Source and ELETTRA. The main RF system (500 MHz) of these machines consist of normal conducting cavities and the purpose of the third harmonic sc system is to lengthen the bunches in order to improve the beam lifetime and stability (additional Landau damping). Recently, several third generation synchrotron light sources have also planned to use sc cavities as main accelerating RF systems. The operational conditions of the existing systems as well as the status of the planned ones are reported here.
	Video of talk
	Transparencies
MOPLT174	Electron Acceleration for e-RHIC with the Non-scaling FFAG	gun, vacuum, beamloading, undulator	932
	D. Trbojevic, M. Blaskiewicz, E.D. Courant, J. Kewisch, T. Roser, A. Ruggiero, N. Tsoupas BNL, Upton, Long Island, New York
	A non-scaling FFAG lattice design to accelerate electrons from 3.2 to 10 GeV is described. This is one of the possible solutions for the future electron-ion collider (eRHIC) at Relativistic Heavy Ion Collier (RHIC) at Brookhaven National Laboratory (BNL). This e-RHIC proposal requires acceleration of the low emittance electrons up to energy of 10 GeV. To reduce a high cost of the full energy super-conducting linear accelerator an alternative approach with the FFAG is considered. The report describes the 1277 meters circumference non-scaling FFAG ring. The Courant-Snyder functions, orbit offsets, momentum compaction, and path length dependences on momentum during acceleration are presented.