CERN Accelerating science

LHC MD Notes

Последно добавени:
2021-07-30
16:59
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.
- 2021. - 17 p.

Подробен запис - Подобни записи
2021-07-30
16:54
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.
- 2021. - 19 p.

Подробен запис - Подобни записи
2021-03-08
17:15
LHC 3324: Counteracting coupling decay at injection, / Persson, Tobias Hakan Bjorn (CERN) ; Maclean, Ewen Hamish (CERN) ; Hulpers, Fredrik ; Solfaroli Camillocci, Matteo (CERN) ; Hofer, Michael (CERN) ; Tomas Garcia, Rogelio (CERN) ; Garcia-Tabares Valdivieso, Ana (Universidad Complutense (ES))
The b3 spool-pieces are corrector sextupole magnets (MCS), are designed to correct the b3-error of the main dipoles. [...]
CERN-ACC-NOTE-2021-0008.
- 2021. - 22 p.

Подробен запис - Подобни записи
2020-12-16
17:28
LHC MD 4505: Forced 3D beam oscillations / Malina, Lukas (CERN) ; Tomas Garcia, Rogelio (CERN) ; Timko, Helga (CERN) ; Louro Alves, Diogo Miguel (CERN) ; Coello De Portugal - Martinez Vazquez, Jaime Maria
This note summarises the detailed programme of an MD testing the new chromaticity and fast optics measurement methods. [...]
CERN-ACC-NOTE-2020-0065.
- 2020. - 14 p.
Full text

Подробен запис - Подобни записи
2020-10-27
16:18
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.
- 2020.
Full text

Подробен запис - Подобни записи
2020-10-06
17:47
MD3310 – Complex tune shift measurement at flat-top in the LHC / Amorim, David (Universite Grenoble-Alpes (FR)) ; Antipov, Sergey ; Biancacci, Nicolo (CERN) ; Buffat, Xavier (CERN) ; Giordano, Francesco (Universita e sezione INFN di Napoli (IT)) ; Hemelsoet, Georges-Henry (CERN) ; Levens, Tom (CERN) ; Metral, Elias (CERN) ; Mounet, Nicolas (CERN) ; Ribes Metidieri, Ariadna (University of Barcelona (ES)) et al.
This note summarises the MD3310 activity. [...]
CERN-ACC-NOTE-2020-0053.
- 2020. - 6 p.
Full text

Подробен запис - Подобни записи
2020-09-25
10:47
MD 3603: Dynamic Aperture with uncorrected dipole b3 / Hofer, Michael (Vienna University of Technology (AT)) ; Carlier, Felix Simon (Technische Universiteit Delft (NL)) ; Dilly, Joschua Werner (Humboldt University of Berlin (DE)) ; Fol, Elena (Goethe University Frankfurt (DE)) ; Garcia-Tabares Valdivieso, Ana (Universidad Complutense (ES)) ; Maclean, Ewen Hamish (CERN) ; Malina, Lukas (CERN) ; Persson, Tobias Hakan Bjorn (CERN) ; Coello De Portugal - Martinez Vazquez, Jaime Maria ; Solfaroli Camillocci, Matteo (CERN) et al.
The hadron collider options currently investigated as part of the FCC study rely on the use of dipoles with a field strength of 16 T or above in order to achieve the targeted collision energy. [...]
CERN-ACC-NOTE-2020-0049.
- 2020. - 22 p.
Full text

Подробен запис - Подобни записи
2020-09-25
10:42
MD3287: Luminosity scans with waist shifts / Coello De Portugal - Martinez Vazquez, Jaime Maria ; Fol, Elena (Goethe University Frankfurt (DE)) ; Malina, Lukas (CERN) ; Tomas Garcia, Rogelio (CERN)
This note reports on the first measurements of the beam waist displacements in the LHC using luminosity scans. [...]
CERN-ACC-NOTE-2020-0048.
- 2020. - 11 p.
Full text

Подробен запис - Подобни записи
2020-08-13
11:16
PROTON-BEAM MACRO-PARTICLE INTERACTION: BEAM DUMPS AND QUENCHES / Auchmann, Bernhard (CERN) ; Baer, Thomas Martin ; Lechner, Anton (CERN) ; Riegler, Werner (CERN) ; Rowan, Scott ; Schindler, Heinrich (CERN) ; Schmidt, Rudiger (GSI - Helmholtzzentrum fur Schwerionenforschung GmbH (DE)) ; Zimmermann, Frank (CERN)
We derive a model for the time evolution of beam losses due to macro particles falling into the LHC proton beam. [...]
CERN-ACC-NOTE-2020-0041.
- 2014. - 19 p.
Access to fulltext

Подробен запис - Подобни записи
2020-07-01
12:55
MD 2935: 16L2 solenoid tests / Salvant, Benoit (CERN) ; Albert, Markus (CERN) ; Arduini, Gianluigi (CERN) ; Buffat, Xavier (CERN) ; Collier, Paul (CERN) ; Gorzawski, Arkadiusz (University of Malta (MT)) ; Grob, Laura Katharina ; Iadarola, Giovanni (CERN) ; Lechner, Anton (CERN) ; Levens, Tom (CERN) et al.
This MD allowed confirming that the solenoid installed in 16L2 during Technical Stop 2 (TS22017) could be held responsible for the performance improvement observed after TS2. [...]
CERN-ACC-NOTE-2020-0038.
- 2020. - 8 p.
Full text

Подробен запис - Подобни записи