CERN Accelerating science

CERN Document Server 40 のレコードが見つかりました。  1 - 10次最後  レコードへジャンプ: 検索にかかった時間: 0.70 秒 
1.
Modifications of the digital notch filter of the damper / Louwerse, R
CERN-SPS-ABM-Modifications-Note-85-10.- Geneva : CERN, 1985 - 3 p. Technical Note
2.
Experience with Beam Transfer Function Measurements for Setting-up the Stochastic Cooling System in the CERN Anti-Proton Decelerator (AD) / Rey, Stephane (CERN) ; Bastos, Wilker (CERN) ; Caspers, Fritz (CERN) ; Dupuy, Bruno (CERN) ; Gamba, Davide (CERN) ; Höfle, Wolfgang (CERN) ; Louwerse, Reinier (CERN)
Beam transfer function measurements have regularly been used to set-up the adjustable parameters for stochastic cooling systems. We report on the automation of these measurements at CERN that permit efficient set-up of the cooling loops in the anti-proton decelerator (AD) and enables insight into the bandwidth (nominal frequency range of 850 MHz to 1.7 GHz) of the overall system for the longitudinal, horizontal and vertical cooling at the two different beam momenta of 2 GeV/c and 3.5 GeV/c. [...]
2024 - 4 p. - Published in : JACoW COOL 2023 (2024) THPOSRP22 Fulltext: PDF;
In : 14th International Workshop on Beam Cooling and Related Topics (COOL '23), Montreux, Switzerland, 8 - 13 Oct 2023, pp.THPOSRP22
3.
Recommissioning of the CERN AD Stochastic Cooling System in 2021 after Long Shutdown 2 / Höfle, Wolfgang (CERN) ; Carli, Christian (CERN) ; Caspers, Fritz (CERN) ; Dupuy, Bruno (CERN) ; Gamba, Davide (CERN) ; Louwerse, Reinier (CERN) ; Myklebust, Vebjorn Roed (CERN) ; Oliveira, Joao Carlos (CERN) ; Ponce, Laurette (CERN) ; Rey, Stephane (CERN) et al.
The power system of the Stochastic Cooling System of the anti-proton decelerator AD at CERN, installed on top of the shielding blocks of the AD ring, was completely dismantled during the long shutdown 2 (LS2) at the end of the 2018 run in order to gain access to the accelerator for magnet consolidation. At start-up, this required finding and verifying the correct delays for all 48 power amplifiers feeding to the two kickers by means of beam transfer functions for the two cooling plateaus at 3.57 GeV/c and 2 GeV/c. [...]
2021 - 6 p. - Published in : JACoW COOL 2021 (2021) 20-25 Fulltext: PDF;
In : International Workshop on Beam Cooling and Related Topics (COOL 2021), Novosibirsk, Russian Federation, 1 - 5 Nov 2021, pp.20-25
4.
Recommissioning of the CERN AD Stochastic Cooling System in 2021 after Long Shutdown 2 / Hofle, Wolfgang (CERN) ; Oliveira, Joao Carlos (CERN) ; Carli, Christian (CERN) ; Caspers, Fritz (European Scientific Institute (FR)) ; Dupuy, Bruno (CERN) ; Gamba, Davide (CERN) ; Louwerse, Reinier (CERN) ; Ponce, Laurette (CERN) ; Myklebust, Vebjorn Roed ; Rey, Stephane Franck (CERN) et al.
The power system of the Stochastic Cooling System of the anti-proton decelerator AD at CERN, installed on top of the shielding blocks of the AD ring, was completely dismantled during the long shutdown 2 (LS2) at the end of the 2018 run in order to gain access to the accelerator for magnet consolidation. [...]
CERN-ACC-Note-2022-0003 ; ISBN: 978-3-95450-243-1 ; ISSN: 2226-0374 ; doi: 10.18429/JACoW-COOL2021-S302.
- 2022. - 6 p.
Access to fulltext
5.
First Operation for Stochastic Cooling of P-Bars in the CERN AD Using Optical Delay Notch Filter and Plans 2021 Operation / Höfle, Wolfgang (CERN) ; Arnaudon, Luca (CERN) ; Bjørsvik, Endre (CERN) ; Caspers, Fritz (CERN) ; Eriksson, Tommy (CERN) ; Louwerse, Reinier (CERN) ; Myklebust, Vebjorn Roed (CERN)
As part of the consolidation of the stochastic coolingsystem of the CERN Antiproton Decelerator a notch filter with optical delay lines has been developed. During the 2018 run of AD a notch filter with optical delay lines for the longitudinal stochastic cooling at 3.5 GeV/c was successfully tested with beam for the first time. [...]
2019 - 5 p. - Published in : 10.18429/JACoW-COOL2019-MOY01 Fulltext: 10.18429_JACoW-COOL2019-MOY01 - PDF; moy01 - PDF;
In : International Workshop on Beam Cooling and Related Topics, Novosibirsk, Russian Federation, September 23 - 27, 2019, pp.MOY01
6.
CERN PS Booster Transverse Damper: 10 kHz - 200 MHz Radiation Tolerant Amplifier for Capacitive PU Signal Conditioning / Meoli, Alessandro (CERN) ; Blas, Alfred (CERN) ; Louwerse, Reinier (CERN)
After connection to the LINAC4, the beam intensity in the PSBooster is expected to double and thus, an upgrade of the head electronics of the transverse feedback BPM is necessary. In order to cover the beam spectrum for an effective transverse damping, the pickup (PU) signal should have a large bandwidth on both the low and high frequency sides. [...]
2017 - 4 p. - Published in : 10.18429/JACoW-IBIC2016-TUPG04 Fulltext: PDF;
In : International Beam Instrumentation Conference, Barcelona, Spain, 11 - 15 Sep 2016, pp.TUPG04
7.
AD and LEIR Consolidation / Eriksson, T (CERN) ; Angoletta, M-E (CERN) ; Arnaudon, L (CERN) ; Baillie, J (CERN) ; Calviani, M (CERN) ; Caspers, F (CERN) ; Cattin, M (CERN) ; Fowler, A (CERN) ; Joergensen, L (CERN) ; Le Godec, G (CERN) et al.
Geneva : CERN, 2015 Published version from CERN: PDF;
In : Chamonix 2014: LHC Performance Workshop, pp.257-260
8.
Practical experience with the AD Stochastic Cooling : Murphy’s law / Louwerse, Reiner (CERN) ; Caspers, Fritz (Presenter at the conference) (CERN)
No abstract available
CERN-ACC-SLIDES-2014-0051.
- 2013. - 22 p.
9.
AD status and consolidation plans / Eriksson, T (CERN) ; Angoletta, M E (CERN) ; Arnaudon, L (CERN) ; Belochitskii, P (CERN) ; Bojtar, L (CERN) ; Calviani, M (CERN) ; Caspers, F (CERN) ; Federmann, S (CERN) ; Jørgensen, L (CERN) ; Louwerse, R (CERN) et al.
The CERN Antiproton Decelerator (AD) has now completed its 12th year of supplying low-energy antiproton beams for the successful physics program. Most of the machine’s key components are in operation since more than 25 years and prompted by the approval of the ELENA project, a substantial consolidation program is now being launched to ensure continued reliable operation. [...]
2013 - 4 p. Published version from JACoW: PDF;
In : International Workshop on Beam Cooling and Releated Topics, Mürren, Switzerland, 10 - 14 Jun 2013, pp.MOPM2HA02
10.
Upgrades and consolidation of the CERN AD for operation during the next decades / Eriksson, T (CERN) ; Angoletta, M (CERN) ; Arnaudon, L (CERN) ; Baillie, J (CERN) ; Calviani, M (CERN) ; Caspers, F (CERN) ; Joergensen, L (CERN) ; Kersevan, R (CERN) ; Le Godec, G (CERN) ; Louwerse, R (CERN) et al.
As the ELENA project is now well underway, focus is turned to the Antiproton Decelerator (AD) itself. Most of the machine’s key components are in operation since more than 25 years and a substantial consolidation program is now being launched in view of continued operation beyond 2025. [...]
CERN-ACC-2013-0036.- Geneva : CERN, 2013 - 3 p. Fulltext: PDF;
In : 4th International Particle Accelerator Conference, Shanghai, China, 12 - 17 May 2013, pp.2654

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