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.
@article{arxiv.0709.2012,
title = {Simulation of LiCAS Error Propagation},
author = {G. Grzelak and A. Reichold and J. Dale and M. Dawson and J. Green and Y. Han and M. Jones and G. Moss and B. Ottewell and R. Wastie and D. Kämptner and J. Prenting and M. Schlösser},
journal= {arXiv preprint arXiv:0709.2012},
year = {2009}
}
Comments
4 pages, 3 figures, Proceedings of the LCWS07/ILC Conference, Hamburg 2007