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CERN Document Server 50 εγγραφές βρέθηκαν  1 - 10επόμενοτέλος  μετάβαση στην εγγραφή: Η έρευνα πήρε 0.63 δευτερόλεπτα. 
1.
Implementation of Light Diagnostics for Wakefields at AWAKE / Mezger, Jan (Munich, Max Planck Inst. ; Tech. U., Munich (main)) ; Bergamaschi, Michele (Munich, Max Planck Inst. ; CERN) ; Ranc, Lucas (Munich, Max Planck Inst.) ; Sublet, Alban (CERN) ; Pucek, Jan (Munich, Max Planck Inst. ; CERN) ; Turner, Marlene (CERN) ; Clairembaud, Arthur (Munich, Max Planck Inst. ; Tech. U., Munich (main)) ; Muggli, Patric (Munich, Max Planck Inst.)
We describe the implementation of light diagnostics for studying the self-modulation instability of a long relativistic proton bunch in a 10m-long plasma. [...]
arXiv:2412.09255.
- 12.
Fulltext
2.
Measurement of the emittance of accelerated electron bunches at the AWAKE experiment / AWAKE Collaboration
The vertical plane transverse emittance of accelerated electron bunches at the AWAKE experiment at CERN has been determined, using three different methods of data analysis. [...]
arXiv:2411.08681.
- 20.
Fulltext
3.
First Thomson scattering results from AWAKE’s helicon plasma source / Stollberg, C (Ecole Polytechnique, Lausanne) ; Guittienne, Ph (Ecole Polytechnique, Lausanne) ; Karimov, R (Ecole Polytechnique, Lausanne) ; Sublet, A (CERN) ; Furno, I (Ecole Polytechnique, Lausanne) ; Vincent, B (Ecole Polytechnique, Lausanne) ; Andrebe, Y (Ecole Polytechnique, Lausanne) ; Buttenschön, B (Greifswald, Max Planck Inst.)
We present the first results of electron density and temperature measurements obtained from Thomson scattering at the helicon plasma source (HPS) for the AWAKE project. These measurements are compared to simulation results from a 1D power and particle balance model (PPM), confirming that the plasma can be fully sustained by collisional power dissipation. [...]
2024 - 15 p. - Published in : Plasma Phys. Control. Fusion 66 (2024) 115011 Fulltext: PDF;
4.
Experimental Observation of Motion of Ions in a Resonantly Driven Plasma Wakefield Accelerator / AWAKE Collaboration
We show experimentally that an effect of motion of ions, observed in a plasma-based accelerator, depends inversely on the plasma ion mass. [...]
arXiv:2406.16361.
- 9.
Fulltext
5.
Double Pulse Generator for Unipolar Discharges in Long Plasma Tubes for the AWAKE Experiment / Torrado, Nuno E (Lisbon, CFP ; CERN) ; Lopes, Nelson C (Lisbon, CFP) ; Silva, J Fernando A (Lisbon, IST) ; Amoedo, Carolina (CERN) ; Sublet, Alban (CERN)
High-voltage pulsed gas discharges can produce suitable plasma for wakefield particle acceleration experiments. Such plasmas are challenging loads characterized by significant parasitic elements and fast impedance transitions leading to hard-to-predict dynamic behavior. [...]
2023 - 9 p. - Published in : IEEE Trans. Plasma Sci. 51 (2023) 3619-3627
6.
Investigating the Superconducting Properties and Surface Morphology of Sputtered Nb Films on Cu Due to Laser Treatment / Turner, Daniel Andrew (Lancaster U.) ; Malyshev, O B (Cockcroft Inst. Accel. Sci. Tech.) ; Burt, G (Lancaster U.) ; Seiler, E (Bratislava, Inst. Phys.) ; Ries, R (Bratislava, Inst. Phys.) ; Medvids, A (Riga Tech. U.) ; Onufrijevs, P (Riga Tech. U.) ; Valizadeh, R (Cockcroft Inst. Accel. Sci. Tech.) ; Sublet, A (CERN) ; Pira, C (INFN, Legnaro) et al.
Bulk niobium is currently the material of choice for superconducting radio frequency (SRF) cavities and is a well matured process. However, it is possible that SRF cavities could be further improved beyond bulk Nb by sputtering thin Nb films onto Cu cavities. [...]
2023 - 12 p. - Published in : IEEE Trans. Appl. Supercond. 33 (2023) 1-12
7.
AWAKE from Run 2a to Run 2b / Guran, Eloïse (CERN) ; Bernardini, Marzia (CERN) ; Gschwendtner, Edda (CERN) ; Muggli, Patric (Munich, Max Planck Inst.) ; Pardons, Ans (CERN) ; Sublet, Alban (CERN) ; Vergara Fernandez, Estrella (CERN) /AWAKE Collaboration
AWAKE is the first proof-of-concept proton-driven plasma wakefield acceleration experiment. AWAKE’s first phase concluded in 2018, with controlled acceleration of electrons to energies of 2 GeV in a 10-m long plasma cell. [...]
2023 - 4 p. - Published in : JACoW IPAC 2023 (2023) TUPA094 Fulltext: PDF;
In : 14th International Particle Accelerator Conference (IPAC 2023), Venice, Italy, 7 - 12 May 2023, pp.TUPA094
8.
Hosing of a long relativistic particle bunch in plasma / AWAKE Collaboration
Experimental results show that hosing of a long particle bunch in plasma can be induced by wakefields driven by a short, misaligned preceding bunch. Hosing develops in the plane of misalignment, self-modulation in the perpendicular plane, at frequencies close to the plasma electron frequency, and are reproducible. [...]
arXiv:2309.03785.- 2024-02-13 - 7 p. - Published in : Phys. Rev. Lett. 132 (2024) 075001 Fulltext: 2309.03785 - PDF; Publication - PDF;
9.
Filamentation of a Relativistic Proton Bunch in Plasma / AWAKE Collaboration
We show in experiments that a long, underdense, relativistic proton bunch propagating in plasma undergoes the oblique instability, that we observe as filamentation. We determine a threshold value for the ratio between the bunch transverse size and plasma skin depth for the instability to occur. [...]
arXiv:2312.13883.- 2024-05-07 - 8 p. - Published in : Phys. Rev. E 109 (2024) 055203 Fulltext: Publication - PDF; 2312.13883 - PDF; External link: Physics Synopsis
10.
Development of the Self-Modulation Instability of a Relativistic Proton Bunch in Plasma / AWAKE Collaboration
Self-modulation is a beam-plasma instability that is useful to drive large-amplitude wakefields with bunches much longer than the plasma skin depth. We present experimental results showing that, when increasing the ratio between the initial transverse size of the bunch and the plasma skin depth, the instability occurs later along the bunch, or not at all, over a fixed plasma length, because the amplitude of the initial wakefields decreases. [...]
arXiv:2305.05478.- 2023-08-01 - 10 p. - Published in : Phys. Plasmas 30 (2023) 083104 Fulltext: 2305.05478 - PDF; Publication - PDF;

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