English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Particle accelerators pushed the limits of our knowledge in search of theanswers to most fundamental questions about micro-world and our Universe. Inthese pursuits, accelerators progressed to higher and higher energies andparticle beam intensities as well as increasingly smaller and smaller beamsizes. As the result, modern existing and planned energy frontier acceleratorsdemand very tight tolerances on alignment and stability of their elements:magnets, accelerating cavities, vacuum chambers, etc. In this article wedescribe the instruments developed for and used in such accelerators asFermilab's Tevatron (FNAL, Batavia, IL USA) and for the studies toward anInternational Linear Collider (ILC). The instrumentation includes HydrostaticLevel Sensors (HLS) for very low frequency measurements. We present designfeatures of the sensors, outline their technical parameters, describe test andcalibration procedures and discuss different regimes of operation. Experimentalresults of the ground motion measurements with these detectors will bepresented in subsequent paper.

Hydrostatic Level Sensors as High Precision Ground Motion Instrumentation for Tevatron and Other Energy Frontier Accelerators