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CERN Document Server Encontrados 24 registros  1 - 10siguientefinal  ir al registro: La búsqueda tardó 0.53 segundos. 
1.
The AWAKE Run 2 programme and beyond / AWAKE Collaboration
Plasma wakefield acceleration is a promising technology to reduce the size of particle accelerators. Use of high energy protons to drive wakefields in plasma has been demonstrated during Run 1 of the AWAKE programme at CERN. [...]
arXiv:2206.06040.- 2022-08-12 - 21 p. - Published in : Symmetry 14 (2022) 1680 Fulltext: document - PDF; 2206.06040 - PDF;
2.
Controlled Growth of the Self-Modulation of a Relativistic Proton Bunch in Plasma / AWAKE Collaboration
A long, narrow, relativistic charged particle bunch propagating in plasma is subject to the self-modulation (SM) instability. We show that SM of a proton bunch can be seeded by the wakefields driven by a preceding electron bunch. [...]
arXiv:2203.13752.- 2022-07-06 - 7 p. - Published in : Phys. Rev. Lett. 129 (2022) 024802 Fulltext: 2203.13752 - PDF; PhysRevLett.129.024802 - PDF;
3.
Analysis of Proton Bunch Parameters in the AWAKE Experiment / AWAKE Collaboration
A precise characterization of the incoming proton bunch parameters is required to accurately simulate the self-modulation process in the Advanced Wakefield Experiment (AWAKE). This paper presents an analysis of the parameters of the incoming proton bunches used in the later stages of the AWAKE Run 1 data-taking period. [...]
arXiv:2109.12893.- 2021-11-24 - 14 p. - Published in : JINST 16 (2021) P11031 Fulltext: document - PDF; 2109.12893 - PDF;
4.
Simulation and Experimental Study of Proton Bunch Self-Modulation in Plasma with Linear Density Gradients / AWAKE Collaboration
We present numerical simulations and experimental results of the self-modulation of a long proton bunch in a plasma with linear density gradients along the beam path. Simulation results agree with the experimental results reported in arXiv:2007.14894v2: with negative gradients, the charge of the modulated bunch is lower than with positive gradients. [...]
arXiv:2107.11369.- 2021-10-01 - 13 p. - Published in : Phys. Rev. Accel. Beams 24 (2021) 101301 Fulltext: Publication - PDF; 2107.11369 - PDF; Fulltext from publisher: PDF;
5.
Transition between Instability and Seeded Self-Modulation of a Relativistic Particle Bunch in Plasma / AWAKE Collaboration
We use a relativistic ionization front to provide various initial transverse wakefield amplitudes for the self-modulation of a long proton bunch in plasma. We show experimentally that, with sufficient initial amplitude ($\ge(4.1\pm0.4)$ MV/m), the phase of the modulation along the bunch is reproducible from event to event, with 3 to 7% (of 2$\pi$) rms variations all along the bunch. [...]
arXiv:2012.09676.- 2021-04-21 - 6 p. - Published in : Phys. Rev. Lett. 126 (2021) 164802 Fulltext: PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF;
6.
Experimental study of extended timescale dynamics of a plasma wakefield driven by a self-modulated proton bunch / AWAKE Collaboration
Plasma wakefield dynamics over timescales up to 800 ps, approximately 100 plasma periods, are studied experimentally at the Advanced Wakefield Experiment (AWAKE). The development of the longitudinal wakefield amplitude driven by a self-modulated proton bunch is measured using the external injection of witness electrons that sample the fields. [...]
arXiv:2010.05715.- 2021-01-06 - 13 p. - Published in : Phys. Rev. Accel. Beams 24 (2021) 011301 Fulltext: PDF; Fulltext from Publisher: PDF; Fulltext from publisher: PDF;
7.
Proton beam defocusing in AWAKE: comparison of simulations and measurements / AWAKE Collaboration
In 2017, AWAKE demonstrated the seeded self-modulation (SSM) of a 400 GeV proton beam from the Super Proton Synchrotron (SPS) at CERN. [...]
arXiv:2008.11392.
- 8 p.
Fulltext
8.
Measurement and application of electron stripping of ultrarelativistic $^{208}\textrm{Pb}^{81+}$ / Cooke, D.A. (University Coll. London) ; Bauche, J. (CERN) ; Cascella, M. (University Coll. London) ; Chappell, J. (University Coll. London) ; Alemany–Fernández, R. (CERN) ; Gorgisyan, I. (CERN) ; Gschwendtner, E. (CERN) ; Jolly, S. (University Coll. London) ; Kain, V. (CERN) ; Keeble, F. (University Coll. London) et al.
New measurements of the stripping cross-section for ultrarelativistic hydrogen-like lead ions passing through aluminium and silicon have been performed at the Advanced Wakefield experiment at CERN. Agreement with existing measurements and theory has been obtained. [...]
arXiv:2006.16160.- 2021-02-01 - 5 p. - Published in : Nucl. Instrum. Methods Phys. Res., A 988 (2021) 164902 Fulltext: PDF; Fulltext from publisher: PDF;
9.
Evolution of a plasma column measured through modulation of a high-energy proton beam / AWAKE Collaboration
Plasma wakefield acceleration is a method for accelerating particle beams using electromagnetic fields that are orders of magnitude larger than those found in conventional radio frequency cavities. [...]
arXiv:2006.09991.
- 22 p.
Fulltext
10.
Experimental Study of Wakefields Driven by a Self-Modulating Proton Bunch in Plasma / AWAKE Collaboration
We study experimentally the longitudinal and transverse wakefields driven by a highly relativistic proton bunch during self-modulation in plasma. We show that the wakefields' growth and amplitude increases with increasing seed amplitude as well as with the proton bunch charge in the plasma. [...]
arXiv:2005.05277.- 2020-08-05 - 8 p. - Published in : Phys. Rev. Accel. Beams 23 (2020) 081302 Fulltext: PDF; Fulltext from Publisher: PDF;

CERN Document Server : Encontrados 24 registros   1 - 10siguientefinal  ir al registro:
Vea también: autores con nombres similares
1 Chappell, J
4 Chappell, James
2 Chappell, James Anthony
17 Chappell, James M
1 Chappell, Jon
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