Zobrazeno 1 - 10
of 20
pro vyhledávání: '"S. F. MARTINS"'
Autor:
N. Kirby, I. Blumenfeld, C. E. Clayton, F. J. Decker, M. J. Hogan, C. Huang, R. Ischebeck, R. H. Iverson, C. Joshi, T. Katsouleas, W. Lu, K. A. Marsh, S. F. Martins, W. B. Mori, P. Muggli, E. Oz, R. H. Siemann, D. R. Walz, M. Zhou
Publikováno v:
Physical Review Special Topics. Accelerators and Beams, Vol 12, Iss 5, p 051302 (2009)
Multi-GeV trapped electron bunches in a plasma wakefield accelerator (PWFA) are observed with normalized transverse emittance divided by peak current, ϵ_{N,x}/I_{t}, below the level of 0.2 μm/kA. A theoretical model of the trapped electron emittanc
Externí odkaz:
https://doaj.org/article/4d892d1ec19e480eab1c774eee78b8dd
Publikováno v:
New Journal of Physics, Vol 22, Iss 1, p 013030 (2020)
Ab initio simulations of the propagation in a plasma of a soon to be available relativistic electron–positron beam or fireball beam provide an effective mean for the study of microphysics relevant to astrophysical scenarios. We show that the curren
Externí odkaz:
https://doaj.org/article/5c094123412d400c9ac01a57c2aa1fd5
Autor:
Antonio Cordeiro, Cláudia S. F. Martins, Nilton Bahlis Santos, Rodrigo Vieira Ribeiro, Thiago Petra
Publikováno v:
RECIIS, Vol 6, Iss 2 (2012)
A nova Lei de Acesso a Informação dá um importante passo para a transparência e controle dos governos por parte da população ao inverter a mão e transformar a transparência em regra e o sigilo em exceção. Mas a consolidação de suas inten
Externí odkaz:
https://doaj.org/article/df4f06fc587040719131a7882596cd97
Autor:
S. R. SALES, A. S. FERREIRA, A. C. L. DANTAS, A. S. SILVA, A. H. ROCHA FILHO, B. SYDOW, C. F. CARVALHO, Eliane Ribeiro ANDRADE, JONAS ALVES DA SILVA JR., L. M. SILVA, M. L. DUARTE, M. M. C. NORO, Marilia Lopes de CAMPOS, M. S. FRANCISCO, O. G. B. SILVA, R. C. R. NOVAES, S. C. MACEDO, Simone Valdete dos SANTOS, S. F. MARTINS
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::9fa0111d3ba5d2301bc677cd0fe8dcf9
https://doi.org/10.24824/978854443923.4
https://doi.org/10.24824/978854443923.4
Autor:
Daniel S. Clark, David Turnbull, Szymon Suckewer, Chan Joshi, T. L. Wang, Nathaniel Fisch, Nathan Meezan, Jonathan Wurtele, S. F. Martins, Lin Yin, L. J. Suter, E. A. Williams, Pierre Michel, Vladimir Malkin, Yuan Ping, Scott Wilks, Kevin J. Bowers, R. K. Kirkwood, H. A. Rose, E. J. Valeo, Otto Landen, Brian J. Albright
Publikováno v:
Journal of Plasma Physics. 77:521-528
Experiments demonstrate the ~77× amplification of 0.5 to 3.5-ps pulses of seed light by interaction with Langmuir waves in a low density (1.2 × 1019 cm−3) plasma produced by a 1-ns, 230-J, 1054-nm pump beam with 1.2 × 1014 W/cm2 intensity. The w
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::69e6ec33151bd11c56e57bd606d5ad05
https://doi.org/10.1017/s0022377810000681
https://doi.org/10.1017/s0022377810000681
Publikováno v:
New Journal of Physics
Ab initio simulations of the propagation in a plasma of a soon to be available relativistic electron-positron beam or fireball beam provide an effective mean for the study of microphysics relevant to astrophysical scenarios. We show that the current
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::6da61446ddbc7f588834437f98b30004
Publikováno v:
AIP Conference Proceedings.
The next decade promises tremendous developments in laser plasma interaction experiments, as a new generation of more powerful lasers becomes available. As in the past, numerical simulations will play a critical role, not only to determine optimal ex
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::15151cb93d59f7340c0172943767f68e
https://doi.org/10.1063/1.3426067
https://doi.org/10.1063/1.3426067
Autor:
J. L. Martins, S. F. Martins, R. A. Fonseca, L. O. Silva, Steven H. Gold, Gregory S. Nusinovich
Publikováno v:
AIP Conference Proceedings.
WOS:000287176200029 (Nº de Acesso Web of Science) A massivelly parallel post-processing radiation diagnostic for PIC codes is presented, which is then used to study the main features of the radiation from single LWFA stages (1.5 GeV and 12 GeV). Thi
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2cf86ee9454d3f826d8b82cf0873f29c
https://doi.org/10.1063/1.3520312
https://doi.org/10.1063/1.3520312
Autor:
S F Martins, Charlotte Palmer, Jorge Vieira, C. Bellei, C. J. Hooker, R. J. Clarke, Stefan Kneip, Peta Foster, Frederico Fiuza, P. P. Rajeev, D Urner, Klaus Ertel, Ricardo Fonseca, Karl Krushelnick, G. Doucas, S. R. Nagel, E. J. Divall, S. J. Hawkes, Warren Mori, Stuart Mangles, Zulfikar Najmudin, Luis O. Silva, M. J. V. Streeter, K. Ta Phuoc, Oleg Chekhlov, Nicolas Delerue, Jörg Schreiber
Publikováno v:
Physical Review Letters
Physical Review Letters, American Physical Society, 2009, 103 (3), pp.035002. ⟨10.1103/PhysRevLett.103.035002⟩
Physical Review Letters, American Physical Society, 2009, 103 (3), pp.035002. ⟨10.1103/PhysRevLett.103.035002⟩
International audience; The acceleration of electrons to ≃0.8 GeV has been observed in a self-injecting laser wakefield accelerator driven at a plasma density of 5.5×10^18 cm^-3 by a 10 J, 55 fs, 800 nm laser pulse in the blowout regime. The laser
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::39399b0485287ebe775dd4bcdf9d8ead
https://doi.org/10.1103/physrevlett.103.035002
https://doi.org/10.1103/physrevlett.103.035002
Autor:
K. Paul, C. Huang, D. L. Bruhwiler, W. B. Mori, F. S. Tsung, E. Cormier-Michel, C. G. R. Geddes, B. Cowan, J. R. Cary, E. Esarey, R. A. Fonseca, S. F. Martins, L. O. Silva, Carl B. Schroeder, Wim Leemans, Eric Esarey
Publikováno v:
AIP Conference Proceedings.
Three-dimensional laser wakefield acceleration (LWFA) simulations have recently been performed to benchmark the commonly used particle-in-cell (PIC) codes VORPAL, OSIRIS, and QuickPIC. The simulations were run in parallel on over 100 processors, usin
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::06bd99b311353afbeb5c000bea868119
https://doi.org/10.1063/1.3080925
https://doi.org/10.1063/1.3080925