Colliding Nanometer-Size Beams in CLIC Using Modern Stabilization Technology

by Ralph Assmann (CERN)

Thursday 3 May 2001, 16:00 → 17:00 Europe/Zurich

SL Auditorium (CERN)

The spot size in the interaction points of linear colliders can be reduced to nanometer values, because the usual beam-beam limit in circular colliders does not apply for single passage collisions. The design values for the vertical spot size range from 5 nm for the 500 GeV TESLA design to 1 nm for the 3 TeV CERN study of a Compact LInear Collider (CLIC). Colliding nanometer-size beams imposes strict tolerances on the accelerator, especially on the transverse vibrations of magnetic elements. An inter-divisional study has recently been set-up in order to demonstrate the required stability and to predict the time-dependent luminosity for CLIC. The study aims in particular at applying state-of-the-art stabilization technology to particle accelerators. Active and passive stabilization technology is subject of intense industrial research and development. Applications include chip lithography, advanced microscopy (TEM), gravitational wave detectors, satellites and nano-technology. A laboratory is being set-up at CERN with the goal to test the use of this technology for future particle accelerators. The set-up and the goals of the CLIC stability study will be presented and discussed in detail.

Organiser(s): Werner Herr, SL Division

Note: * Tea and coffee will be served at 15:30 in front of the Auditorium

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