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Improving the precision of linear optics measurements based on turn-by-turn beam position monitor data after a pulsed excitation in lepton storage rings
(American Physical Society (APS), 2018-08-04)
Article.
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Article.
Accés obert
Beam optics control is of critical importance for machine performance and protection. Nowadays, turn-by-turn (TbT) beam position monitor (BPM) data are increasingly exploited as they allow for fast and simultaneous measurement ...
Experimental validation of the Achromatic Telescopic Squeezing (ATS) scheme at the LHC
(Institute of Physics (IOP), 2017-07-27)
Article.
Accés obert
Article.
Accés obert
The Achromatic Telescopic Squeezing scheme offers new techniques to deliver unprecedentedly small beam spot size at the interaction points of the ATLAS and CMS experiments of the LHC, while perfectly controlling the chromatic ...
LHC optics commissioning: A journey towards 1% optics control
(American Physical Society (APS), 2017-06-19)
Article.
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Article.
Accés obert
Since 2015 the LHC has been operating at 6.5 TeV. In 2016 the ß -functions at the interaction points of ATLAS and CMS were squeezed to 0.4 m. This is below the design ß * = 0.55 ¿ ¿ m at 7 TeV, and has been instrumental ...
New approach to LHC optics commissioning for the nonlinear era
(American Physical Society (APS), 2019-06-21)
Article.
Accés obert
Article.
Accés obert
In 2017, optics commissioning strategy for low- ß * operation of the CERN Large Hadron Collider (LHC) underwent a major revision. This was prompted by a need to extend the scope of beam-based commissioning at high energy, ...