CERN Accelerating science

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1.
Progress in the Bunch-to-Bucket Transfer Implementation for FAIR / Ferrand, Thibault (Darmstadt, Tech. Hochsch.) ; Bachmann, Oliver (Darmstadt, Tech. U.) ; Bai, Jiaoni (Darmstadt, GSI) ; Damerau, Heiko (CERN) ; Klingbeil, Harald (Darmstadt, Tech. Hochsch. ; Darmstadt, GSI)
The transfer of bunched ion beams between various synchrotrons is required for the multi-accelerator complex FAIR, presently under construction at GSI. To avoid a dedicated distribution infrastructure for radiofrequency (RF) signals between each source and destination synchrotron, a new approach has been developed to transmit bunch and bucket phase information using synchronous Ethernet. [...]
CERN-ACC-2017-230.- 2017 - 3 p. - Published in : 10.18429/JACoW-IPAC2017-THPVA041 Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.THPVA041
2.
Synchronization of Synchrotrons for bunch-to-bucket Transfers / Ferrand, Thibault (TEMF GSI-PBRF) ; Klingbeil, Harald (TEMF GSI-PBRF) ; Damerau, Heiko (CERN)
To reach high particle energies with synchrotrons, a chain of several accelerators is required, as the ratio of extraction and injection energy is in the range of 10 to 20 per synchrotron. [...]
CERN-ACC-NOTE-2015-0025.
- 2015. - 23 p.
Full text
3.
Benchmarking the Beam Longitudinal Dynamics Code BLonD / Timko, Helga (CERN) ; Esteban Müller, Juan (CERN) ; Lasheen, Alexandre (CERN) ; Quartullo, Danilo (CERN)
The relatively recent Beam Longitudinal Dynamics code BLonD has already been applied to a wide range of studies for all present CERN synchrotrons. Its application area ranges from studies of RF manipulations, over single and multi-bunch interactions with impedance, to the action of feedback loops and RF noise. [...]
CERN-ACC-2016-192.- 2016 - 4 p. - Published in : 10.18429/JACoW-IPAC2016-WEPOY045 Published version from JACoW: PDF;
In : 7th International Particle Accelerator Conference, Busan, Korea, 8 - 13 May 2016, pp.WEPOY045
4.
Improvement of the Longitudinal Beam Transfer from PS to SPS at CERN / Lasheen, Alexandre (CERN) ; Damerau, Heiko (CERN) ; Repond, Joël (CERN) ; Schwarz, Markus (CERN) ; Shaposhnikova, Elena (CERN)
The beam transfer from the Proton Synchrotron (PS) to the Super Proton Synchrotron (SPS) at CERN is a critical process for the production of beams for the Large Hadron Collider (LHC). A bunch-to-bucket transfer is performed with the main drawback that the rf frequency in the SPS (200 MHz) is five times higher than the one in the PS (40 MHz). [...]
CERN-ACC-2018-173.- 2018 - 4 p. - Published in : 10.18429/JACoW-IPAC2018-THPAF042 Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.THPAF042
5.
Studies of Capture and Flat-Bottom Losses in the SPS / Schwarz, Markus (CERN) ; Bartosik, Hannes (CERN) ; Shaposhnikova, Elena (CERN) ; Lasheen, Alexandre (CERN) ; Repond, Joël (CERN) ; Timko, Helga (CERN)
One of the strong limitations for reaching higher beam intensities in the SPS, the injector of the LHC at CERN, are particle losses at flat bottom that increase with beam intensity. In this paper, different sources of these losses are investigated for two available SPS optics, using both measurements and simulations. [...]
2018 - 6 p. - Published in : 10.18429/JACoW-HB2018-TUP2WA03 Fulltext: PDF;
In : 61st ICFA Advanced Beam Dynamics Workshop on High-Intensity and High-Brightness Hadron Beams, Daejeon, Korea, 17 - 22 Jun 2018, pp.TUP2WA03
6.
Bunch-to-Bucket Injection of Linac Beam into the Brookhaven AGS / Brennan, J M ; Ahrens, L ; Kats, J
1990 External link: Published version from JACoW
In : 2nd European Particle Accelerator Conference, Nice, France, 12 - 16 Jun 1990, pp.1237
7.
Commissioning the New LLRF System of the CERN PS Booster / Albright, Simon (CERN) ; Angoletta, Maria Elena (CERN) ; Barrientos, Diego (CERN) ; Findlay, Alan (CERN) ; Jaussi, Michael (CERN) ; Molendijk, John (CERN)
The PS Booster (PSB) is the first synchrotron in the injection chain for protons. The beams produced for the LHC and various fixed target experiments cover a very large parameter space. [...]
2022 - 4 p. - Published in : JACoW IPAC 2022 (2022) 2060-2063 Fulltext: PDF;
In : 13th International Particle Accelerator Conference (IPAC 2022), Bangkok, Thailand, 12 - 17 Jun 2022, pp.2060-2063
8.
Capture and flat-bottom losses in the CERN SPS / Schwarz, Markus (CERN) ; Lasheen, Alexandre (CERN) ; Papotti, Giulia (CERN) ; Repond, Joël (CERN) ; Shaposhnikova, Elena (CERN) ; Timko, Helga (CERN)
Particle losses on the flat bottom of the SPS, the last accelerator in the injector chain of the LHC at CERN, are a strong limitation for reaching the high intensities required by the high-luminosity upgrade of the LHC. Two contributions to these losses are investigated in this paper. [...]
CERN-ACC-2019-060.- 2019 - 4 p. - Published in : 10.18429/JACoW-IPAC2019-MOPGW091 Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.MOPGW091
9.
Longitudinal transfer of rotated bunches in the CERN injectors / Timko, H. (CERN) ; Argyropoulos, T (CERN) ; Bohl, T (CERN) ; Damerau, H (CERN) ; Esteban Müller, J.F (CERN) ; Hancock, S (CERN) ; Shaposhnikova, E (CERN)
Bunch-to-bucket transfer between the CERN Proton Synchrotron and Super Proton Synchrotron for Large Hadron Collider–type beams is done via rotation of bunches in longitudinal phase space. For these rotated bunches, the dependence of beam transmission on bunch length had remained unexplained for a long time. [...]
2013 - 7 p. - Published in : Phys. Rev. Spec. Top. Accel. Beams 16 (2013) 051004 APS Published version, local copy: PDF;
10.
Timing, Synchronization & Longitudinal Aspects / Damerau, Heiko (CERN)
The transfer of beams from one accelerators to another requires a set of parameters correctly adjusted, as well as a sequence of events to trigger all elements relevant to the transfer exactly at the right moment with respect to the beam. The course introduces the basic building blocks of synchronization systems and beam synchronous timing generation. [...]
2018 - 30 p. - Published in : CERN Yellow Rep. School Proc. 5 (2018) 163 Fulltext: PDF;
In : CAS - CERN Accelerator School: Beam Injection, Extraction and Transfer, Erice, Italy, 10 - 19 Mar 2017, pp.163 (CERN-2018-008-SP)

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