CERN Accelerating science

ATS Notes

Darreres entrades:
2019-12-06
17:22
MD4147: 50 Hz harmonics perturbation / Kostoglou, Sofia (National Technical Univ. of Athens (GR)) ; Arduini, Gianluigi (CERN) ; Baccigalupi, Carlo ; Bartosik, Hannes (CERN) ; Buffat, Xavier (CERN) ; Burnet, Jean-Paul (CERN) ; Carver, Lee Robert (University of Liverpool (GB)) ; Cerqueira Bastos, Miguel (CERN) ; De Maria, Riccardo (CERN) ; Fartoukh, Stephane (CERN) et al.
Since the beginning of the LHC commissioning, harmonics of 50 Hz have been observed in the beam spectrum. [...]
CERN-ACC-NOTE-2019-0055.
- 2019. - 21 p.
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2019-12-05
17:28
LHC MD4243: Q22 optics in TI2 / Velotti, Francesco Maria (CERN) ; Bartmann, Wolfgang (CERN) ; Bracco, Chiara (CERN) ; Goddard, Brennan (CERN) ; Hessler, Christoph ; Kain, Verena (CERN) ; Chapochnikova, Elena (CERN) ; Timko, Helga (CERN)
This MD shows the feasibility of operating TI2 with an optics matched to the SPS Q22 optics.Optics studies in the transfer line (TL) were performed together with an injection voltage scan toassess, also, the longitudinal quality of the injected single bunch..
CERN-ACC-NOTE-2019-0054.
- 2019. - 5 p.
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2019-12-05
11:58
MD3263: Beam-Beam Long-Range Compensation using DC Wires in the LHC / Poyet, Axel (Universite Grenoble-Alpes (FR)) ; Fartoukh, Stephane (CERN) ; Fuster Martinez, Nuria (CERN) ; Karastathis, Nikos (CERN) ; Papaphilippou, Yannis (CERN) ; Pojer, Mirko (CERN) ; Redaelli, Stefano (CERN) ; Rossi, Adriana (CERN) ; Skoufaris, Kyriacos (University of Crete (GR)) ; Solfaroli Camillocci, Matteo (CERN) et al.
This note summarizes the experimental results obtained during the 2018 LHC Machine Development program during the measurements campaign of the Beam-Beam Long-Range compensation using DC wires (MD3263). [...]
CERN-ACC-NOTE-2019-0053.
- 2019. - 25 p.
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2019-12-05
10:43
MD2202: compensating long-range beam-beam effectin the LHC using DC wires / Sterbini, Guido (CERN) ; Amorim, David (Universite Grenoble-Alpes (FR)) ; Arduini, Gianluigi (CERN) ; Bartosik, Hannes (CERN) ; Bruce, Roderik (CERN) ; Buffat, Xavier (CERN) ; Carver, Lee Robert (University of Liverpool (GB)) ; Cattenoz, Gregory (CERN) ; Effinger, Ewald (CERN) ; Fartoukh, Stephane (CERN) et al.
his note summarizes the program of the LHC Machine Development to assess the potential and limits of the long-range beam-beam compensators held in 2017 (MD2202) [...]
CERN-ACC-NOTE-2019-0052.
- 2019. - 52 p.
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2019-12-04
14:31
Initial longitudinal diagnostics for ELENA’s commissioning / Angoletta, Maria Elena (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN)
CERN’s Extra Low ENergy Antiproton (ELENA) ring has undergone its second full year of beam commissioning in 2018. [...]
CERN-ACC-NOTE-2019-0051.
- 2019.

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2019-12-04
14:27
New LLRF capabilities and beam results for the second year of ELENA’s commissioning / Angoletta, Maria Elena (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN)
CERN’s Extra Low ENergy Antiproton (ELENA) ring underwent its second full year of beam commissioning in 2018. [...]
CERN-ACC-NOTE-2019-0050.
- 2019.
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2019-11-13
11:23
LHeC optics with β∗ = 10 cm and L∗ = 15 m / Cruz Alaniz, Emilia (University of Liverpool (GB)) ; Martin, Roman ; Tomas Garcia, Rogelio (CERN)
New proton optics have been designed for LHeC taking into account new final focus magnet designs and ensuring a full compatibility with HL-LHC version 1.3. [...]
CERN-ACC-NOTE-2019-0049.
- 2019. - 17 p.
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2019-11-12
16:55
Measurement and Simulation of the Longitudinal Impedance of the LHCb VELO / Popovic, Branko Kosta (CERN) ; Vollinger, Christine (CERN)
Impedance analysis of any new or redesigned components of the LHC machine is vital in ensuring beam stability and for inclusion in the overall impedance budget. [...]
CERN-ACC-NOTE-2019-0048.
- 2019. - 8 p.

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2019-10-29
16:13
Manufacture of Septum Electromagnet Yokes for the SPS Accelerator / Rizzo, A (Cern)
This specification concerns the manufacture of 14000 mild steel laminations and their assembly into 20 septum electromagnet yokes. [...]
CERN-ACC-NOTE-2019-0047 ; SL-Spec 98-33 MS.
- 1998. - 29 p.
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2019-10-24
14:17
Resonance Driving Terms From Space Charge Potential / Asvesta, Foteini (National Technical Univ. of Athens (GR)) ; Bartosik, Hannes (CERN)
This note presents the calculation of the Resonance Driving Terms (RDTs) and the tune spread coming from the space charge potential of a Gaussian beam. [...]
CERN-ACC-NOTE-2019-0046.
- 2019. - 17 p.
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Enfocat a:
LHC MD Notes (137)