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arxiv: 0709.2012 · v1 · submitted 2007-09-13 · ⚛️ physics.ins-det · physics.acc-ph

Simulation of LiCAS Error Propagation

G. Grzelak , A. Reichold , J. Dale , M. Dawson , J. Green , Y. Han , M. Jones , G. Moss
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B. Ottewell R. Wastie D. K\"amptner J. Prenting M. Schl\"osser
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classification ⚛️ physics.ins-det physics.acc-ph
keywords licascolliderlinearstraightnesstunnelabsoluteaccuracyachieve
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Linear Collider Alignment and Survey (LiCAS) R&D group is proposing a novel automated metrology instrument dedicated to align and monitor the mechanical stability of a future linear high energy e+e- collider. LiCAS uses Laser Straightness Monitors (LSM) and Frequency Scanning Interferometry (FSI) for straightness and absolute distance measurements, respectively. This paper presents detailed simulations of a LiCAS system operating inside a Rapid Tunnel Reference Surveyor (RTRS train). With the proposed design it is feasible to achieve the required vertical accuracy of the order of 200 micons over 600 m tunnel sections meeting the specification for the TESLA collider.

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