Experimental Validation of the Achromatic Telescopic Squeezing Scheme at the LHC

Fartoukh, Stephane; Bruce, Roderik; Carlier, Felix; Coello de Portugal, Jaime Maria; Garcia-Tabares, Ana; Maclean, Ewen; Malina, Lukas; Mereghetti, Alessio; Mirarchi, Daniele; Persson, Tobias; Pojer, Mirko; Ponce, Laurette; Redaelli, Stefano; Salvachua, Belen; Skowroński, Piotr; Solfaroli, Matteo; Tomás, Rogelio; Valuch, Daniel; Wegscheider, Andreas; Wenninger, Jorg

doi:10.18429/JACoW-IPAC2017-WEPIK030

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RIS citation export for WEPIK030: Experimental Validation of the Achromatic Telescopic Squeezing Scheme at the LHC

TY - CONF
AU - Fartoukh, S.D.
AU - Bruce, R.
AU - Carlier, F.S.
AU - Coello de Portugal, J.M.
AU - Garcia-Tabares, A.
AU - Maclean, E.H.
AU - Malina, L.
AU - Mereghetti, A.
AU - Mirarchi, D.
AU - Persson, T.
AU - Pojer, M.
AU - Ponce, L.
AU - Redaelli, S.
AU - Salvachua, B.
AU - Skowroński, P.K.
AU - Solfaroli, M.
AU - Tomás, R.
AU - Valuch, D.
AU - Wegscheider, A.
AU - Wenninger, J.
ED - Schaa, Volker RW
ED - Arduini, Gianluigi
ED - Pranke, Juliana
ED - Seidel, Mike
ED - Lindroos, Mats
TI - Experimental Validation of the Achromatic Telescopic Squeezing Scheme at the LHC
J2 - Proc. of IPAC2017, Copenhagen, Denmark, 14â19 May, 2017
C1 - Copenhagen, Denmark
T2 - International Particle Accelerator Conference
T3 - 8
LA - english
AB - The Achromatic Telescopic Squeezing (ATS) [1] 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 properties of the corresponding optics (linear and non-linear chromaticities, off-momentum beta-beating, spurious dispersion induced by the crossing bumps). The first series of beam tests with ATS optics were achieved during the LHC Run I (2011/2012) for a first validation of the basics of the scheme at small intensity. In 2016, a new generation of more performing ATS optics was developed and more extensively tested in the machine, still with probe beams for optics measurement and correction at β^{*}=10 cm, but also with a few nominal bunches to establish first collisions at nominal β^{*} (40 cm) and beyond (33 cm), and to analysis the robustness of these optics in terms of collimation and machine protection. The paper will highlight the most relevant and conclusive results which were obtained during this second series of ATS tests.
PB - JACoW
CP - Geneva, Switzerland
SP - 2992
EP - 2995
KW - optics
KW - collimation
KW - insertion
KW - injection
KW - luminosity
DA - 2017/05
PY - 2017
SN - 978-3-95450-182-3
DO - 10.18429/JACoW-IPAC2017-WEPIK030
UR - http://jacow.org/ipac2017/papers/wepik030.pdf
ER -