Simulation and experimental study of proton bunch self-modulation in plasma with linear density gradientsCitation formats

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Simulation and experimental study of proton bunch self-modulation in plasma with linear density gradients. / AWAKE Collaboration.

In: Physical Review Accelerators and Beams, Vol. 24, No. 10, 01.10.2021.

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AWAKE Collaboration. / Simulation and experimental study of proton bunch self-modulation in plasma with linear density gradients. In: Physical Review Accelerators and Beams. 2021 ; Vol. 24, No. 10.

Bibtex

@article{6b03334f5e634003a87b1f3a908c664e,
title = "Simulation and experimental study of proton bunch self-modulation in plasma with linear density gradients",
abstract = "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 [F. Braunmller, T. Nechaeva et al. (AWAKE Collaboration), Phys. Rev. Lett. 125, 264801 (2020)]: with negative gradients, the charge of the modulated bunch is lower than with positive gradients. In addition, the bunch modulation frequency varies with gradient. Simulation results show that dephasing of the wakefields with respect to the relativistic protons along the plasma is the main cause for the loss of charge. The study of the modulation frequency reveals details about the evolution of the self-modulation process along the plasma. In particular for negative gradients, the modulation frequency across time-resolved images of the bunch indicates the position along the plasma where protons leave the wakefields. Simulations and experimental results are in excellent agreement.",
author = "{AWAKE Collaboration} and {Morales Guzm{\'a}n}, P. I. and P. Muggli and R. Agnello and C. C. Ahdida and M. Aladi and {Amoedo Goncalves}, M. C. and Y. Andrebe and O. Apsimon and R. Apsimon and A.-m. Bachmann and M. A. Baistrukov and F. Batsch and M. Bergamaschi and P. Blanchard and F. Braunm{\"u}ller and P. N. Burrows and B. Buttensch{\"o}n and A. Caldwell and J. Chappell and E. Chevallay and M. Chung and D. A. Cooke and H. Damerau and C. Davut and G. Demeter and A. Dexter and S. Doebert and J. Farmer and A. Fasoli and V. N. Fedosseev and R. Fiorito and R. A. Fonseca and I. Furno and S. Gessner and A. A. Gorn and E. Granados and M. Granetzny and T. Graubner and O. Grulke and E. Gschwendtner and E. D. Guran and V. Hafych and J. R. Henderson and M. H{\"u}ther and M. {\'A}. Kedves and V. Khudyakov and S.-y. Kim and F. Kraus and L. Liang and G. Xia",
year = "2021",
month = oct,
day = "1",
doi = "10.1103/PhysRevAccelBeams.24.101301",
language = "English",
volume = "24",
journal = "Physical Review Accelerators and Beams",
issn = "2469-9888",
publisher = "American Physical Society",
number = "10",

}

RIS

TY - JOUR

T1 - Simulation and experimental study of proton bunch self-modulation in plasma with linear density gradients

AU - AWAKE Collaboration

AU - Morales Guzmán, P. I.

AU - Muggli, P.

AU - Agnello, R.

AU - Ahdida, C. C.

AU - Aladi, M.

AU - Amoedo Goncalves, M. C.

AU - Andrebe, Y.

AU - Apsimon, O.

AU - Apsimon, R.

AU - Bachmann, A.-m.

AU - Baistrukov, M. A.

AU - Batsch, F.

AU - Bergamaschi, M.

AU - Blanchard, P.

AU - Braunmüller, F.

AU - Burrows, P. N.

AU - Buttenschön, B.

AU - Caldwell, A.

AU - Chappell, J.

AU - Chevallay, E.

AU - Chung, M.

AU - Cooke, D. A.

AU - Damerau, H.

AU - Davut, C.

AU - Demeter, G.

AU - Dexter, A.

AU - Doebert, S.

AU - Farmer, J.

AU - Fasoli, A.

AU - Fedosseev, V. N.

AU - Fiorito, R.

AU - Fonseca, R. A.

AU - Furno, I.

AU - Gessner, S.

AU - Gorn, A. A.

AU - Granados, E.

AU - Granetzny, M.

AU - Graubner, T.

AU - Grulke, O.

AU - Gschwendtner, E.

AU - Guran, E. D.

AU - Hafych, V.

AU - Henderson, J. R.

AU - Hüther, M.

AU - Kedves, M. Á.

AU - Khudyakov, V.

AU - Kim, S.-y.

AU - Kraus, F.

AU - Liang, L.

AU - Xia, G.

PY - 2021/10/1

Y1 - 2021/10/1

N2 - 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 [F. Braunmller, T. Nechaeva et al. (AWAKE Collaboration), Phys. Rev. Lett. 125, 264801 (2020)]: with negative gradients, the charge of the modulated bunch is lower than with positive gradients. In addition, the bunch modulation frequency varies with gradient. Simulation results show that dephasing of the wakefields with respect to the relativistic protons along the plasma is the main cause for the loss of charge. The study of the modulation frequency reveals details about the evolution of the self-modulation process along the plasma. In particular for negative gradients, the modulation frequency across time-resolved images of the bunch indicates the position along the plasma where protons leave the wakefields. Simulations and experimental results are in excellent agreement.

AB - 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 [F. Braunmller, T. Nechaeva et al. (AWAKE Collaboration), Phys. Rev. Lett. 125, 264801 (2020)]: with negative gradients, the charge of the modulated bunch is lower than with positive gradients. In addition, the bunch modulation frequency varies with gradient. Simulation results show that dephasing of the wakefields with respect to the relativistic protons along the plasma is the main cause for the loss of charge. The study of the modulation frequency reveals details about the evolution of the self-modulation process along the plasma. In particular for negative gradients, the modulation frequency across time-resolved images of the bunch indicates the position along the plasma where protons leave the wakefields. Simulations and experimental results are in excellent agreement.

U2 - 10.1103/PhysRevAccelBeams.24.101301

DO - 10.1103/PhysRevAccelBeams.24.101301

M3 - Article

VL - 24

JO - Physical Review Accelerators and Beams

JF - Physical Review Accelerators and Beams

SN - 2469-9888

IS - 10

ER -