ICALEPCS2013 - List of Keywords (resonance)

Paper	Title	Other Keywords	Page
THPPC120	A Simplified Model of the International Linear Collider Final Focus System	detector, quadrupole, controls, feedback	1341
	M. Oriunno, T.W. Markiewicz SLAC, Menlo Park, California, USA C.G.R.L. Collette, D. Tshilumba ULB - FSA - SMN, Bruxelles, Belgium
	Mechanical vibrations are the main sources of Luminosity Loss at the Final Focus System of the future Linear Colliders, where the nanometric beams are required to be extremely stable. Precise models are needed to validate the supporting scheme adopted. Where the beam structure allows it, as for the International Linear Collider (ILC), intra-trains Luminosity Feedback schemes are possible. Where this is not possible, as for the Compact Linear Collider (CLIC), an active stabilization of the doublets is required. Further complications arise from the optics requirements, which place the final doublet very close to the IP (~4m). We present a model of the SID detector, where the QD0 doublet is captured inside the detector and the QF1 magnet is inside the tunnel. Ground Motion measured at the SLD detector at SLAC have been used together with a model of the technical noise. The model predicts that the rms vibration of QDO is below the capture range of the IP feedback system available in the ILC. With the addition of an active stabilization system on QD0, it is also possible to achieve the stability requirements of CLIC. These results can have important implications for CLIC.

Paper

Title

Other Keywords

Page

THPPC120

A Simplified Model of the International Linear Collider Final Focus System

detector, quadrupole, controls, feedback

1341

M. Oriunno, T.W. Markiewicz
SLAC, Menlo Park, California, USA
C.G.R.L. Collette, D. Tshilumba
ULB - FSA - SMN, Bruxelles, Belgium

Mechanical vibrations are the main sources of Luminosity Loss at the Final Focus System of the future Linear Colliders, where the nanometric beams are required to be extremely stable. Precise models are needed to validate the supporting scheme adopted. Where the beam structure allows it, as for the International Linear Collider (ILC), intra-trains Luminosity Feedback schemes are possible. Where this is not possible, as for the Compact Linear Collider (CLIC), an active stabilization of the doublets is required. Further complications arise from the optics requirements, which place the final doublet very close to the IP (~4m). We present a model of the SID detector, where the QD0 doublet is captured inside the detector and the QF1 magnet is inside the tunnel. Ground Motion measured at the SLD detector at SLAC have been used together with a model of the technical noise. The model predicts that the rms vibration of QDO is below the capture range of the IP feedback system available in the ILC. With the addition of an active stabilization system on QD0, it is also possible to achieve the stability requirements of CLIC. These results can have important implications for CLIC.