CERN Accelerating science

LHC MD Notes

新增:
2019-03-21
12:05
MD4036: New ADT signal processing for large tune acceptance / Komppula, Jani Paavo Olavi ; Buffat, Xavier (CERN) ; Kotzian, Gerd (CERN) ; Li, Kevin Shing Bruce (CERN) ; Valuch, Daniel (CERN)
Transverse feedback system (ADT) performance can be optimized with digital FIR filters [...]
CERN-ACC-NOTE-2019-0008.
- 2019. - 20 p.

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2018-12-17
15:31
MD3344 - Fully-Automatic Angular Alignment of LHC Collimators using Machine Learning / Azzopardi, Gabriella (University of Malta (MT)) ; Valentino, Gianluca (University of Malta (MT)) ; Salvachua Ferrando, Belen Maria (CERN)
A complex collimation system is installed in the LHC to protect its sensitive equipment from unavoidable beam losses. [...]
CERN-ACC-NOTE-2018-0083.
- 2018. - 10 p.
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2018-11-22
16:56
Crystal Collimation Cleaning Measurements with Lead Ion Beams in LHC / Rossi, Roberto (Sapienza Universita e INFN, Roma I (IT)) ; Aberle, Oliver (CERN) ; Andreassen, Odd Oyvind (CERN) ; Butcher, Mark (CERN) ; Dionisio Barreto, Cristovao Andre (CERN) ; Masi, Alessandro (CERN) ; Mirarchi, Daniele (University of Manchester (GB)) ; Montesano, Simone (Universita e INFN, Bologna (IT)) ; Lamas Garcia, Inigo (CERN) ; Redaelli, Stefano (CERN) et al.
During this MD, performed on November the 26th, 2016, bent silicon crystals were tested with lead ion beams for a possible usage of crystal-assisted collimation [...]
CERN-ACC-NOTE-2018-0077.
- 2016. - 12 p.
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2018-11-15
17:27
MD3343 - Fully-Automatic Parallel Collimation Alignment using Machine Learning / Azzopardi, Gabriella (University of Malta (MT)) ; Valentino, Gianluca (University of Malta (MT)) ; Salvachua Ferrando, Belen Maria (CERN)
The collimation system protects the LHC and its sensitive equipment form unavoidable beam losses [...]
CERN-ACC-NOTE-2018-0071.
- 2018. - 8 p.
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2018-11-15
17:07
MD1653 - Part 1: Characterisation of BLM Response at Collimators / Azzopardi, Gabriella (University of Malta (MT)) ; Valentino, Gianluca (University of Malta (MT)) ; Salvachua Ferrando, Belen Maria (CERN)
The Large Hadron Collider (LHC) has a collimation system which uses an alignment procedure to align the collimators around the beam [...]
CERN-ACC-NOTE-2018-0070.
- 2018. - 8 p.
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2018-10-11
14:05
Beam 2 Crystal Characterization Measurements with Proton Beams in the LHC / Rossi, Roberto (Sapienza Universita e INFN, Roma I (IT)) ; Aberle, Oliver (CERN) ; Andreassen, Odd Oyvind (CERN) ; Butcher, Mark (CERN) ; Dionisio Barreto, Cristovao Andre (CERN) ; Masi, Alessandro (CERN) ; Mirarchi, Daniele (University of Manchester (GB)) ; Montesano, Simone ; Lamas Garcia, Inigo (CERN) ; Redaelli, Stefano (CERN) et al.
In 2017, two new crystals were installed, with their goniometers, in the counterclockwise Beam 2 (B2) line [...]
CERN-ACC-NOTE-2018-0067.
- 2018. - 11 p.
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2018-07-24
15:55
MD 2563: Optics measurement and corrections with half integer tune / Wegscheider, Andreas (Hamburg University (DE)) ; Coello De Portugal - Martinez Vazquez, Jaime Maria (Universitat Politecnica Catalunya (ES)) ; Dilly, Joschua Werner (Ministere des affaires etrangeres et europeennes (FR)) ; Fartoukh, Stephane (CERN) ; Fol, Elena (Johann-Wolfgang-Goethe Univ. (DE)) ; Garcia-Tabares Valdivieso, Ana (Universidad Complutense (ES)) ; Maclean, Ewen Hamish (University of Malta (MT)) ; Papaphilippou, Yannis (CERN) ; Pellegrini, Dario (CERN) ; Persson, Tobias Hakan Bjorn (CERN) et al.
This note reports on the optics measurement and correction actions that were performed during the study of the LHC at a working point close to the half integer resonance..
CERN-ACC-NOTE-2018-0055.
- 2018. - 11 p.
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2018-07-24
10:28
Report from LHC MD 2171: Dynamic aperture at 6.5 TeV / Maclean, Ewen Hamish (University of Malta (MT)) ; Carlier, Felix Simon (Technische Universiteit Delft (NL)) ; Giovannozzi, Massimo (CERN) ; Tomas Garcia, Rogelio (CERN)
Throughout the LHC’s first and second operational runs, increasing emphasis has been placed on the study of nonlinear single-particle beam dynamics [...]
CERN-ACC-NOTE-2018-0054.
- 2018. - 25 p.
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2018-07-23
16:35
Crystal Collimation During the LHC Energy Ramp / Rossi, Roberto (Sapienza Universita e INFN, Roma I (IT)) ; Aberle, Oliver (CERN) ; Andreassen, Odd Oyvind (CERN) ; Butcher, Mark (CERN) ; Dionisio Barreto, Cristovao Andre (CERN) ; Masi, Alessandro (CERN) ; Mirarchi, Daniele (University of Manchester (GB)) ; Montesano, Simone (CERN) ; Lamas Garcia, Inigo (CERN) ; Redaelli, Stefano (CERN) et al.
During this MD, performed on October the 30th, 2016, bent silicon crystals and their goniometers were tested with proton beams for a possible usage of crystal-assisted collimation during the LHC energy ramp. [...]
CERN-ACC-NOTE-2018-0053.
- 2016. - 7 p.
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2018-06-25
14:06
MD 2408: Study of Schottky Monitors for Q' Measurement at Injection / Tydecks, Tobias (CERN) ; Alves Silva, Diogo Miguel ; Levens, Tom (CERN) ; Wendt, Manfred (CERN) ; Wenninger, Jorg (CERN)
The Schottky monitors installed at the LHC enable the detection of Schottky noise of the two circulating proton / ion beams [...]
CERN-ACC-NOTE-2018-0047.
- 2018.
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