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OSIRIS-GR: General relativistic activation of the polar cap of a compact neutron star

Autor: Torres, R., Grismayer, T., Cruz, F., Fonseca, R. A., Silva, L. O.

Publikováno v: New Astronomy, Volume 112, June 2024, Pages 102261

We present ab initio global general-relativistic Particle-in-cell (GR-PIC) simulations of compact millisecond neutron star magnetospheres in the axisymmetric aligned rotator configuration. We investigate the role of GR and plasma supply on the polar

Externí odkaz: http://arxiv.org/abs/2401.02908

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RaDiO: an efficient spatiotemporal radiation diagnostic for particle-in-cell codes

Autor: Pardal, M., Sainte-Marie, A., Reboul-Salze, A., Fonseca, R. A., Viera, J.

Publikováno v: Computer Physics Communications, Volume 285, 2023, 108634, ISSN 0010-4655

This work describes a novel radiation algorithm designed to capture the three-dimensional, space-time resolved electromagnetic field structure emitted by large ensembles of charged particles. % in particle-in-cell (PIC) codes. The algorithm retains t

Externí odkaz: http://arxiv.org/abs/2302.14812

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Coherence and superradiance from a plasma-based quasiparticle accelerator

Autor: Malaca, B., Pardal, M., Ramsey, D., Pierce, J., Weichman, K., Andriyash, I., Mori, W. B., Palastro, J. P., Fonseca, R. A., Vieira, J.

Coherent light sources, such as free electron lasers, provide bright beams for biology, chemistry, physics, and advanced technological applications. Increasing the brightness of these sources requires progressively larger devices, with the largest be

Externí odkaz: http://arxiv.org/abs/2301.11082

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Analysis of Proton Bunch Parameters in the AWAKE Experiment

Autor: Hafych, V., Caldwell, A., Agnello, R., Ahdida, C. C., Aladi, M., Goncalves, M. C. Amoedo, Andrebe, Y., Apsimon, O., Apsimon, R., Bachmann, A. -M., Baistrukov, M. A., Batsch, F., Bergamaschi, M., Blanchard, P., Burrows, P. N., Buttenschön, B., Chappell, J., Chevallay, E., Chung, M., Cooke, D. A., Damerau, H., Davut, C., Demeter, G., Dexter, A., Doebert, S., Farmer, J., Fasoli, A., Fedosseev, V. N., Fiorito, R., Fonseca, R. A., Furno, I., Gessner, S., Gorn, A. A., Granados, E., Granetzny, M., Graubner, T., Grulke, O., Gschwendtner, E., Guran, E. D., Henderson, J. R., Hüther, M., Kedves, M. Á., Khudyakov, V., Kim, S. -Y., Kraus, F., Krupa, M., Lefevre, T., Liang, L., Lopes, N., Lotov, K. V., Mazzoni, S., Godoy, D. Medina, Moody, J. T., Moon, K., Guzmán, P. I. Morales, Moreira, M., Nechaeva, T., Nowak, E., Pakuza, C., Panuganti, H., Pardons, A., Perera, A., Pucek, J., Pukhov, A., Ráczkevi, B., Ramjiawan, R. L., Rey, S., Schmitz, O., Senes, E., Silva, L. O., Stollberg, C., Sublet, A., Topaloudis, A., Torrado, N., Tuev, P. V., Turner, M., Velotti, F., Verra, L., Vieira, J., Vincke, H., Welsch, C. P., Wendt, M., Wing, M., Wolfenden, J., Woolley, B., Xia, G., Zepp, M., Della Porta, G. Zevi

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 b

Externí odkaz: http://arxiv.org/abs/2109.12893

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Slowdown of interpenetration of two counterpropagating plasma slab due to collective effects

Autor: Shukla, N., Schoeffler, K., Vieira, J., Fonseca, R., Boella, E., Silva, L. O.

The nonlinear evolution of electromagnetic instabilities driven by the interpenetration of two $e^-\,e^+$ plasma clouds is explored using {\it ab initio} kinetic plasma simulations. We show that the plasma clouds slow down due to both oblique and Wei

Externí odkaz: http://arxiv.org/abs/2109.00023

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Simulation and Experimental Study of Proton Bunch Self-Modulation in Plasma with Linear Density Gradients

Autor: Guzmán, P. I. Morales, Muggli, P., Agnello, R., Ahdida, C. C., Aladi, M., Goncalves, M. C. Amoedo, Andrebe, Y., Apsimon, O., Apsimon, R., Bachmann, A. -M., Baistrukov, M. A., Batsch, F., Bergamaschi, M., Blanchard, P., Braunmüller, F., Burrows, P. N., Buttenschön, B., Caldwell, A., Chappell, J., Chevallay, E., Chung, M., Cooke, D. A., Damerau, H., Davut, C., Demeter, G., Dexter, A., Doebert, S., Farmer, J., Fasoli, A., Fedosseev, V. N., Fiorito, R., Fonseca, R. A., Furno, I., Gessner, S., Gorn, A. A., Granados, E., Granetzny, M., Graubner, T., Grulke, O., Gschwendtner, E., Guran, E. D., Hafych, V., Henderson, J. R., Hüther, M., Kedves, M. Á., Khudyakov, V., Kim, S. -Y., Kraus, F., Krupa, M., Lefevre, T., Liang, L., Lopes, N., Lotov, K. V., Martyanov, M., Mazzoni, S., Godoy, D. Medina, Moody, J. T., Moon, K., Moreira, M., Nechaeva, T., Nowak, E., Pakuza, C., Panuganti, H., Pardons, A., Perera, A., Pucek, J., Pukhov, A., Ráczkevi, B., Ramjiawan, R. L., Rey, S., Schmitz, O., Senes, E., Silva, L. O., Stollberg, C., Sublet, A., Topaloudis, A., Torrado, N., Tuev, P. V., Turner, M., Velotti, F., Verra, L., Vieira, J., Vincke, H., Welsch, C. P., Wendt, M., Wing, M., Wolfenden, J., Woolley, B., Xia, G., Zepp, M., Della Porta, G. Zevi

Publikováno v: Phys. Rev. Accel. Beams 24, 101301 (2021)

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:2007.14894

Externí odkaz: http://arxiv.org/abs/2107.11369

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Akademický článek

Still high risk? A review of translocation t(14;16) in multiple myeloma.

Autor: Mian H; Department of Oncology, McMaster University, Ontario, Canada., Kaiser M; Division of Genetics and Epidemiology, The Institute of Cancer Research, London, UK.; Department of Haematology, The Royal Marsden Hospital, London, UK., Fonseca R; Division of Hematology and Medical Oncology, Mayo Clinic in Arizona, Phoenix, Arizona, USA.

Publikováno v: American journal of hematology [Am J Hematol] 2024 Oct; Vol. 99 (10), pp. 1979-1987. Date of Electronic Publication: 2024 Jun 14.

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Transition between Instability and Seeded Self-Modulation of a Relativistic Particle Bunch in Plasma

Autor: Batsch, F., Muggli, P., Agnello, R., Ahdida, C. C., Goncalves, M. C. Amoedo, Andrebe, Y., Apsimon, O., Apsimon, R., Bachmann, A. -M., Baistrukov, M. A., Blanchard, P., Braunmüller, F., Burrows, P. N., Buttenschön, B., Caldwell, A., Chappell, J., Chevallay, E., Chung, M., Cooke, D. A., Damerau, H., Davut, C., Demeter, G., Deubner, H. L., Doebert, S., Farmer, J., Fasoli, A., Fedosseev, V. N., Fiorito, R., Fonseca, R. A., Friebel, F., Furno, I., Garolfi, L., Gessner, S., Gorgisyan, I., Gorn, A. A., Granados, E., Granetzny, M., Graubner, T., Grulke, O., Gschwendtner, E., Hafych, V., Helm, A., Henderson, J. R., Hüther, M., Kargapolov, I. Yu., Kim, S. -Y., Kraus, F., Krupa, M., Lefevre, T., Liang, L., Liu, S., Lopes, N., Lotov, K. V., Martyanov, M., Mazzoni, S., Godoy, D. Medina, Minakov, V. A., Moody, J. T., Moon, K., Guzmán, P. I. Morales, Moreira, M., Nechaeva, T., Nowak, E., Pakuza, C., Panuganti, H., Pardons, A., Perera, A., Pucek, J., Pukhov, A., Ramjiawan, R. L., Rey, S., Rieger, K., Schmitz, O., Senes, E., Silva, L. O., Speroni, R., Spitsyn, R. I., Stollberg, C., Sublet, A., Topaloudis, A., Torrado, N., Tuev, P. V., Turner, M., Velotti, F., Verra, L., Verzilov, V. A., Vieira, J., Vincke, H., Welsch, C. P., Wendt, M., Wing, M., Wiwattananon, P., Wolfenden, J., Woolley, B., Xia, G., Zepp, M., Della Porta, G. Zevi

Publikováno v: Phys. Rev. Lett. 126, 164802 (2021)

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 ph

Externí odkaz: http://arxiv.org/abs/2012.09676

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