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Simulation of LiCAS Error Propagation

ECONF C0705302:MET05,2007

Authors:

G Grzelak, A Reichold, J Dale, M Dawson, J Green, Y Han, M Jones, G Moss, B Ottewell, R Wastie, D Kämptner, J Prenting, M Schlösser

Abstract:

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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Technical design of the phase I Mu3e experiment

Authors:

K Arndt, H Augustin, P Baesso, N Berger, F Berg, C Betancourt, D Bortoletto, A Bravar, K Briggl, D vom Bruch, A Buonaura, F Cadoux, C Chavez Barajas, H Chen, K Clark, P Cooke, S Corrodi, A Damyanova, Y Demets, S Dittmeier, P Eckert, F Ehrler, D Fahrni, L Gerritzen, J Goldstein, D Gottschalk, C Grab, R Gredig, A Groves, J Hammerich, U Hartenstein, U Hartmann, H Hayward, A Herkert, G Hesketh, S Hetzel, M Hildebrandt, Z Hodge, A Hofer, Qh Huang, S Hughes, L Huth, Dm Immig, T Jones, M Jones, H-C Kästli, M Köppel, P-R Kettle, M Kiehn, S Kilani

Abstract:

The Mu3e experiment aims to find or exclude the lepton flavour violating decay $\mu \rightarrow eee$ at branching fractions above $10^{-16}$. A first phase of the experiment using an existing beamline at the Paul Scherrer Institute (PSI) is designed to reach a single event sensitivity of $2\cdot 10^{-15}$. We present an overview of all aspects of the technical design and expected performance of the phase~I Mu3e detector. The high rate of up to $10^{8}$ muon decays per second and the low momenta of the decay electrons and positrons pose a unique set of challenges, which we tackle using an ultra thin tracking detector based on high-voltage monolithic active pixel sensors combined with scintillating fibres and tiles for precise timing measurements.
More details from the publisher
More details
Details from ArXiV

Technical design of the phase I Mu3e experiment

Authors:

K Arndt, H Augustin, P Baesso, N Berger, F Berg, C Betancourt, D Bortoletto, A Bravar, K Briggl, D vom Bruch, A Buonaura, F Cadoux, C Chavez Barajas, H Chen, K Clark, P Cooke, S Corrodi, A Damyanova, Y Demets, S Dittmeier, P Eckert, F Ehrler, D Fahrni, L Gerritzen, J Goldstein, D Gottschalk, C Grab, R Gredig, A Groves, J Hammerich, U Hartenstein, U Hartmann, H Hayward, A Herkert, G Hesketh, S Hetzel, M Hildebrandt, Z Hodge, A Hofer, Qh Huang, S Hughes, L Huth, Dm Immig, T Jones, M Jones, H-C Kästli, M Köppel, P-R Kettle, M Kiehn, S Kilani

Abstract:

The Mu3e experiment aims to find or exclude the lepton flavour violating decay $\mu \rightarrow eee$ at branching fractions above $10^{-16}$. A first phase of the experiment using an existing beamline at the Paul Scherrer Institute (PSI) is designed to reach a single event sensitivity of $2\cdot 10^{-15}$. We present an overview of all aspects of the technical design and expected performance of the phase~I Mu3e detector. The high rate of up to $10^{8}$ muon decays per second and the low momenta of the decay electrons and positrons pose a unique set of challenges, which we tackle using an ultra thin tracking detector based on high-voltage monolithic active pixel sensors combined with scintillating fibres and tiles for precise timing measurements.
More details from the publisher