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Lyn Evans (CERN)03/09/2007, 14:00
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Rudiger SCHMIDT (CERN)03/09/2007, 14:10Objectives and questions
The idea to organise this workshop came up during the High Intensity High Brightness Hadron Beams workshop, HB2006, Tsukuba, Japan (2006). This workshop will focus on problems and solutions for absorbers and collimators for accelerators with Multi-MJoule stored beam energy. The objective of the workshop is to better understand the technological limits imposed by...
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Ralph ASSMANN (CERN)03/09/2007, 14:20LHC requirements for collimatorsLHC foresees a staged implementation of collimation. The first stage is presently being constructed and installed. A second stage should allow an even higher performance reach and shoul address several possible limitations in the initial installation. Collimators are the closest elements to the high-intenisty LHC beam and must be designed to directly intercept beam particles. The...Go to contribution page
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Brennan Goddard (CERN)03/09/2007, 14:50Beam absorbers for Machine Protection at LHC and SPS
A variety of machine protection absorbers are foreseen for the SPS and the LHC, to protect against failures during injection and extraction. The functional requirements for the different devices are presented, including expected operating conditions and anticipated performance limitations. General design constraints are briefly discussed, and some issues are outlined for possible...
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Nikolai MOKHOV (FERMILAB)03/09/2007, 15:45Tevatron Collider Collimators and AbsorbersBeam collimation is mandatory at any superconducting collider to protect components against excessive irradiation, minimize backgrounds in the experiments, maintain operational reliability over the life of the machine, and reduce the impact of radiation on environment, both at normal operation and accidental situations. Highly-efficient two-stage collimation system at Tevatron reliably...Go to contribution page
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Eric Doyle (SLAC)03/09/2007, 16:15Phase II collimators for LHC upgrade at SLACA rotatable collimator as developed at SLAC for NLC was proposed for LHC’s Phase II upgrade to provide a low impedance metal collimator, able to recover from several damaging hits by the beam. This talk reviews the technical problems involved, the FLUKA/ANSYS simulations which have guided our design decisions and the materials considered for the jaws. It focuses on the the reasons for...Go to contribution page
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Jens STADLMANN (GSI)03/09/2007, 16:45Lattice optimization for low charge state heavy ion operation - Collimation concepts for beam ions after a charge changeWe present a new lattice design concept for heavy ion synchrotrons which is optimized for the control of beam loss by projectile ionization. The lattice cells of the FAIR SIS100 synchrotron has been designed as charge separators. Thereby ionized projectiles are well separated from the reference beam. The generated peaked loss distribution enables the operation of a highly efficient...Go to contribution page
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Juan Luis Fernandez Hernando (STFC/ASTeC)03/09/2007, 17:15Design and testing of ILC Beam Delivery System collimators
At the ILC, the removal of halo particles having large amplitudes relative to the ideal orbit is mandatory to both minimise damage to beam line elements and particle detectors and to achieve tolerable background levels in the latter. In the high energy, high intensity environment of the linear collider the low background levels will largely be ensured by placing a set of mechanical...
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