What is the best displacement transducer for a seismic sensor?

Novotny, Peter; Aimard, B.; Balik, G.; Brunetti, L.; Caron, Bernard; Gaddi, A.

doi:10.1109/isiss.2017.7935672

Cited by 4 publications

(2 citation statements)

References 7 publications

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“…This understanding has Indeed, commercial sensors including inertial sensors, geophones or broadband accelerometers, have two main limitations: they are not radiation hard and need to be re-designed to be integrated in a vibration control system. CERN is collaborating with LAPP Annecy on the development of new sensors, based on new or combined methods, such as transducers, optical encoders, one-pass or multipass interferometers [49,50] to measure the internal mass motion. At the same time, ULB Brussels has studied the replacement of the classical spring mass by an internal beam [51,52].…”

Section: Alignment and Stabilisationmentioning

confidence: 99%

The CLIC project

Brunner¹,

Burrows²,

Calatroni³

et al. 2022

Preprint

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The Compact Linear Collider (CLIC) is a multi-TeV high-luminosity linear e + e − collider under development by the CLIC accelerator collaboration, hosted by CERN. The CLIC accelerator has been optimised for three energy stages at centre-of-mass energies 380 GeV, 1.5 TeV and 3 TeV [1]. CLIC uses a novel two-beam acceleration technique, with normal-conducting accelerating structures operating in the range of 70 MV/m to 100 MV/m. The report describes recent achievements in accelerator design, technology development, system tests and beam tests. Large-scale CLIC-specific beam tests have taken place, for example, at the CLIC Test Facility CTF3 at CERN [2], at the Accelerator Test Facility ATF2 at KEK [3,4], at the FACET facility at SLAC [5] and at the FERMI facility in Trieste [6]. Crucial experience also emanates from the expanding field of Free Electron Laser (FEL) linacs and recent-generation light sources. Together, they demonstrate that all implications of the CLIC design parameters are well understood and reproducible in beam tests and prove that the CLIC performance goals are realistic. An alternative CLIC scenario for the first stage, where the accelerating structures are powered by X-band klystrons, is also under study. The implementation of CLIC near CERN has been investigated. Focusing on a staged approach starting at 380 GeV, this includes civil engineering aspects, electrical networks, cooling and ventilation, installation scheduling, transport, and safety aspects. All CLIC studies have put emphasis on optimising cost and energy efficiency, and the resulting power and cost estimates are reported. The report follows very closely the accelerator project description in the CLIC Summary Report for the European Particle Physics Strategy update 2018-19 [7].

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Section: Alignment and Stabilisationmentioning

confidence: 99%

The CLIC project

Brunner¹,

Burrows²,

Calatroni³

et al. 2022

Preprint

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show abstract

“…Different resolutions were obtained from all of them when operating under the same conditions, but none of them could achieve the required resolution. The most convenient solution found to be used as a seismic sensor for the requirements of PACMAN was the integration of a multi-pass Michelson interferometer in a configuration with 8 reflections [45].…”

Section: 3mentioning

confidence: 99%

Development of direct measurement techniques for the in-situ internal alignment of accelerating structures.

Munoz¹

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(UPV) for giving me the privileged opportunity to perform this work and PhD thesis. My special thanks go to the PACMAN leader, Dr. Hélène Mainaud-Durand, for her committement striving for the success of the project. My deep and eternal acknowledgements to my supervisor at CERN, Dr. Nuria Catalán Lasheras, for entrusting me with this responsibility, for her endless paciente and smart contributions in the development of this work; to my Ph.D. supervisors Dr. Ángeles Faus Golfe and Dr. Vicente Boria Esbert, for their dedication, involvement and bright professional and human guidance along these years. I would like to seize this opportunity to to thank the valuable help I obtained from Anastasiya Solodko and Serge Lebet with the conceptual design of the test bench, mechanical designs and manufacturing. I am also very grateful to César Blanch Gutiérrez and Dr. Juan Jose Garcia Garrigós for their kind technical assistance at IFIC. I highlight the collaboration from Guy Deferne and Olaf Dunkel in the manufacturing of the crucial wirepositioning systems. I highly appreciate the many times Pablo Sobrino Monpean, Dr. Matteo Volpi and Philippe Guyard carried the heavy test bench from the radiofrequency to the metrology laboratory. Thanks to the team involved in the imperative metrology measurements and analysis: Dr. Ahmed Cherif, Didier Glaude, Mathieu Duquenne, Dominique Pugnat and Cyril Haerinck. I emphasize the valuable innovative ideas and fruitful discussions with Dr.

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CERN Yellow Reports: Monographs, Vol 2 (2018): The Compact Linear e+e− Collider (CLIC) : 2018 Summary Report

Burrows¹,

Lasheras²,

Linssen³

et al. 1970

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What is the best displacement transducer for a seismic sensor?

Cited by 4 publications

References 7 publications

The CLIC project

The CLIC project

Development of direct measurement techniques for the in-situ internal alignment of accelerating structures.

CERN Yellow Reports: Monographs, Vol 2 (2018): The Compact Linear e+e− Collider (CLIC) : 2018 Summary Report

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