1.
|
Space Charge Studies on LEIR
/ Saá Hernández, Angela (CERN) ; Bartosik, Hannes (CERN) ; Biancacci, Nicolo (CERN) ; Hirlaender, Simon (CERN) ; Huschauer, Alexander (CERN) ; Moreno Garcia, Daniel (CERN)
The performance of the CERN Low Energy Ion Ring with electron cooled ion beams is presently limited by losses occurring once the beam has been captured in the RF buckets. An intense machine study program was started by the end of 2015 to mitigate the losses and improve the performance of the accelerator. [...]
CERN-ACC-2018-134.-
2018 - 6 p.
- Published in : (2018) , pp. THPAF055
- Published in : J. Phys.: Conf. Ser. 1067 (2018) 062020
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.THPAF055
|
|
2.
|
Detailed characterisation of the LEIR intensity limitations for a Pb ion beam
/ Saá Hernández, Angela (CERN) ; Bartosik, Hannes (CERN) ; Biancacci, Nicolo (CERN) ; Hirlaender, Simon (CERN) ; Moreno, Daniel (CERN) ; Zampetakis, Michail (CERN)
The equilibrium emittance of the Pb beam in the CERN Low Energy Ion Ring (LEIR) results from the interplay of electron cooling and heating processes, as intra-beam scattering and space charge. In this paper we present the measurements of the emittance evolution as a function of intensity, working point and resonance excitation, and compare them with the simulations of the heating processes. [...]
CERN-ACC-2019-109.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPTS042
Preprint: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPTS042
|
|
3.
|
Performance of the CERN Low Energy Ion Ring (LEIR) with Xenon beams
/ Alemany-Fernández, Reyes (CERN) ; Albright, Simon (CERN) ; Andujar, Oscar (CERN) ; Angoletta, Maria Elena (CERN) ; Axensalva, Jerome (CERN) ; Bartosik, Hannes (CERN) ; Baud, Guillaume (CERN) ; Biancacci, Nicolo (CERN) ; Bozzolan, Michele (CERN) ; Cettour Cave, Stephane (CERN) et al.
In 2017 the CERN Low Energy Ion Ring demonstrated once more the feasibility of injecting, accumulating, cooling and accelerating a new nuclei, $^{129}$Xe${39+}$. The operation of this new ion species started at the beginning of March with the start up of the xenon ion source and the Linac3. [...]
CERN-ACC-2018-144.-
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-TUPAF020
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.TUPAF020
|
|
4.
|
|
5.
|
Energy dependence of the reproducibility and injection efficiency of the LINAC3-LEIR complex
/ Hirlaender, Simon (CERN) ; Bartosik, Hannes (CERN) ; Bellodi, Giulia (CERN) ; Biancacci, Nicolo (CERN) ; Kain, Verena (CERN) ; Saá Hernández, Angela (CERN) ; Scrivens, Richard (CERN)
High intensities in the CERN Low Energy Ion Ring (LEIR) are achieved by stacking several multi-turn injections from the pre-accelerator LINAC3. Up to seven consecutive 200 μs long, 200 ms spaced pulses are injected from LINAC3 into LEIR. [...]
CERN-ACC-2019-110.-
2019 - 4 p.
- Published in : 10.18429/JACoW-IPAC2019-WEPTS040
Fulltext from publisher: PDF;
In : 10th International Particle Accelerator Conference, Melbourne, Australia, 19 - 24 May 2019, pp.WEPTS040
|
|
6.
|
Impedance and Instability Studies in LEIR with Xenon
/ Biancacci, Nicolo (CERN) ; Bartosik, Hannes (CERN) ; Gąsior, Marek (CERN) ; Hirlaender, Simon (CERN) ; Latina, A (CERN) ; Levens, Thomas (CERN) ; Migliorati, Mauro (U. Rome La Sapienza (main) ; INFN, Rome) ; Métral, Elias (CERN)
In 2017, the LEIR accelerator has been operated with $Xe^{39+}$ beam for fixed target experiments in the SPS North Area. The different ion species, with respect to the standard $Pb^{34+}$, allowed for additional comparative measurements of tune shift versus intensity at injection energy both in coasting and bunched beams. [...]
CERN-ACC-2018-143.-
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-TUPAF024
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.TUPAF024
|
|
7.
|
Electron Cooling Simulation and Experimental Benchmarks at LEIR
/ Latina, Andrea (CERN) ; Bartosik, Hannes (CERN) ; Biancacci, Nicolo (CERN) ; Corsini, Roberto (CERN) ; Gamba, Davide (CERN) ; Hirlaender, Simon (CERN) ; Huschauer, Alexander (CERN)
A simulation of the electron cooling has recently been implemented in the tracking code RF-Track. The implementation was based on a "hybrid kinetic" model, where the full 6-D phase space of a particle beam is immersed in a fluid plasma of electrons. [...]
CERN-ACC-2018-145.-
2018 - 4 p.
- Published in : 10.18429/JACoW-IPAC2018-TUPAF039
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.TUPAF039
|
|
8.
|
LEIR Injection Efficiency Studies as a Function of the Beam Energy Distribution from Linac3
/ Hirlaender, Simon (CERN) ; Alemany-Fernández, Reyes (CERN) ; Bartosik, Hannes (CERN) ; Bellodi, Giulia (CERN) ; Biancacci, Nicolo (CERN) ; Kain, Verena (CERN) ; Scrivens, Richard (CERN)
High intensities in the CERN Low Energy Ion Ring (LEIR) are achieved using multi-turn injections from the pre-accelerator Linac3 combined with simultaneous stacking in momentum and transverse phase spaces. Up to seven consecutive 200 $\mu$s long, 200 ms spaced pulses are injected from Linac3 into LEIR by stacking each of them into the six-dimensional phase-space over 70 turns. [...]
CERN-ACC-2018-142.-
2018 - 3 p.
- Published in : 10.18429/JACoW-IPAC2018-TUPAF034
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.TUPAF034
|
|
9.
|
Performance of the CERN Injector Complex and Transmission Studies into the LHC during the Second Proton-Lead Run
/ Alemany-Fernández, Reyes (CERN) ; Albright, Simon (CERN) ; Angoletta, Maria Elena (CERN) ; Axensalva, Jerome (CERN) ; Bartmann, Wolfgang (CERN) ; Bartosik, Hannes (CERN) ; Baudrenghien, Philippe (CERN) ; Bellodi, Giulia (CERN) ; Blas, Alfred (CERN) ; Bohl, Thomas (CERN) et al.
The LHC performance during the proton-lead run in 2016 fully relied on a permanent monitoring and systematic improvement of the beam quality in all the injectors. The beam production and characteristics are explained in this paper, together with the improvements realized during the run from the source up to the flat top of the LHC [...]
CERN-ACC-2017-155.-
2017 - 4 p.
- Published in : 10.18429/JACoW-IPAC2017-TUPVA128
Fulltext: PDF;
In : 8th International Particle Accelerator Conference, Copenhagen, Denmark, 14 - 19 May 2017, pp.TUPVA128
|
|
10.
|
Studies of the Injection and Cooling Efficiency in LEIR Using the Longitudinal Schottky Spectrum
/ Hirlaender, Simon (CERN) ; Alemany-Fernández, Reyes (CERN) ; Bartosik, Hannes (CERN) ; Biancacci, Nicolo (CERN) ; Kain, Verena (CERN)
The CERN Low Energy Ion Ring (LEIR) has two main operational beams with their associated cycles, the so-called EARLY and the NOMINAL beam. The EARLY beam consists of a single injected pulse from the LINAC3 accelerator, whereas seven consecutive injections are accumulated, and electron cooled for the NOMINAL beam. [...]
CERN-ACC-2018-146.-
2018 - 3 p.
- Published in : 10.18429/JACoW-IPAC2018-TUPAF036
Fulltext: PDF;
In : 9th International Particle Accelerator Conference, Vancouver, Canada, 29 Apr - 4 May 2018, pp.TUPAF036
|
|