2022-08-12 18:32 |
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Report from LHC MD 3312: Replicating HL-LHC DA
/ Dilly, Joschua Werner (Humboldt University of Berlin (DE)) ; Albert, Markus (CERN) ; Carlier, Felix Simon (CERN) ; Coello De Portugal - Martinez Vazquez, Jaime Maria ; Dalena, Barbara (Université Paris-Saclay (FR)) ; Fol, Elena (CERN) ; Hofer, Michael (CERN) ; Maclean, Ewen Hamish (CERN) ; Malina, Lukas ; Persson, Tobias Hakan Bjorn (CERN) et al.
During MD3312 on the 30.10.2018 the non-linear conditions in the insertion regions of the planned HL-LHC were replicated to our best knowledge and within the capabilities of the hardware currently available in the LHC: A flat ATS-optics scheme of beta* = 15cm / 60cm in IP1 and IP5 was applied as well as sextupole, octupole and (normal) dodecapole errors were introduced into the machine via the corrector magnets in the interaction regions. [...]
CERN-ACC-NOTE-2022-0021.
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2022.
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2022-07-14 16:49 |
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2022-01-27 14:58 |
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2021-10-29 16:53 |
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2021-08-20 18:05 |
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2021-07-30 16:59 |
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MD2193 – Impedance Measurements of the TCSPM Prototype Collimator
/ Amorim, David (Universite Grenoble-Alpes (FR)) ; Antipov, Sergey ; Arsenyev, Sergey ; Azzopardi, Gabriella (CERN) ; Biancacci, Nicolo (CERN) ; Bruce, Roderik (CERN) ; Carver, Lee Robert (University of Liverpool (GB)) ; Fitterer, Miriam ; Giordano, Francesco (Universita e sezione INFN di Napoli (IT)) ; Lamas Garcia, Inigo et al.
In view of the HL–LHC project, it is planned to exchange 9 out 11 of the LHC secondary collimators in IR7, made of graphite, with low–impedance ones. [...]
CERN-ACC-NOTE-2021-0021.
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2021. - 17 p.
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2021-07-30 16:54 |
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MD2191 – β∗–Reach: 2017 IR7 Collimation Hierarchy Limit and Impedance
/ Mereghetti, Alessio ; Amorim, David (Universite Grenoble-Alpes (FR)) ; Antipov, Sergey ; Azzopardi, Gabriella (CERN) ; Carver, Lee Robert (University of Liverpool (GB)) ; Metral, Elias (CERN) ; Redaelli, Stefano (CERN) ; Salvant, Benoit (CERN) ; Valentino, Gianluca (University of Malta (MT)) ; Valuch, Daniel (CERN)
This report summarises the results of MD2191 about the hierarchy limit of the LHC collimation system in IR7 at 6.5 TeV and its impedance. [...]
CERN-ACC-NOTE-2021-0020.
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2021. - 19 p.
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2021-03-08 17:15 |
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2020-12-16 17:28 |
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2020-10-27 16:18 |
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MD2490 – Measurement of the TMCI threshold at flat-top in the LHC
/ Albert, Markus (CERN) ; Amorim, David (Universite Grenoble-Alpes (FR)) ; Antipov, Sergey ; Biancacci, Nicolo (CERN) ; Buffat, Xavier (CERN) ; Carver, Lee Robert (University of Liverpool (GB)) ; Fuchsberger, Kajetan ; Mereghetti, Alessio ; Metral, Elias (CERN) ; Mounet, Nicolas (CERN) et al.
This report summarizes the results of MD2490 on the measurement of the intensity threshold of the Transverse Mode Coupling Instability (TMCI) in the LHC at flat top. [...]
CERN-ACC-NOTE-2020-0056.
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2020.
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