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Titolo:
High density collimated beams of relativistic ions produced by petawatt laser pulses in plasmas
Autore:
Sentoku, Y; Liseikina, TV; Esirkepov, TZ; Califano, F; Naumova, NM; Ueshima, Y; Vshivkov, VA; Kato, Y; Mima, K; Nishihara, K; Pegoraro, F; Bulanov, SV;
Indirizzi:
Osaka Univ, Inst Laser Engn, Osaka, Japan Osaka Univ Osaka JapanOsaka Univ, Inst Laser Engn, Osaka, Japan RAS, SD, Inst Computat Techol, Novosibirsk, Russia RAS Novosibirsk Russia S, SD, Inst Computat Techol, Novosibirsk, Russia Moscow Inst Phys & Technol, Dolgoprudnyi, Russia Moscow Inst Phys & Technol Dolgoprudnyi Russia ol, Dolgoprudnyi, Russia Univ Pisa, Dipartimento Fis, Pisa, Italy Univ Pisa Pisa ItalyUniv Pisa, Dipartimento Fis, Pisa, Italy INFM, Pisa, Italy INFM Pisa ItalyINFM, Pisa, Italy JAERI, APRC, Kansai Res Estab, Kyoto, Japan JAERI Kyoto JapanJAERI, APRC, Kansai Res Estab, Kyoto, Japan JAERI, APRC, Kansai Res Estab, Neyagawa, Osaka, Japan JAERI Neyagawa Osaka Japan PRC, Kansai Res Estab, Neyagawa, Osaka, Japan
Titolo Testata:
PHYSICAL REVIEW E
fascicolo: 5, volume: 62, anno: 2000,
parte:, B
pagine: 7271 - 7281
SICI:
1063-651X(200011)62:5<7271:HDCBOR>2.0.ZU;2-0
Fonte:
ISI
Lingua:
ENG
Soggetto:
WAKE-FIELD GENERATION; 10(19) W CM(-2); COLLISIONLESS PLASMA; UNDERDENSE PLASMA; OBLIQUE-INCIDENCE; INTENSITY LASERS; ACCELERATION; ABSORPTION; ENERGY; ULTRASHORT;
Tipo documento:
Article
Natura:
Periodico
Settore Disciplinare:
Physical, Chemical & Earth Sciences
--discip_EC--
Citazioni:
53
Recensione:
Indirizzi per estratti:
Indirizzo: Sentoku, Y Osaka Univ, Inst Laser Engn, Osaka, Japan Osaka Univ Osaka Japan a Univ, Inst Laser Engn, Osaka, Japan
Citazione:
Y. Sentoku et al., "High density collimated beams of relativistic ions produced by petawatt laser pulses in plasmas", PHYS REV E, 62(5), 2000, pp. 7271-7281

Abstract

Under optimal interaction conditions ions can be accelerated up to relativistic energies by a petawatt laser pulse in both underdense and overdense plasmas. Two-dimensional particle in cell simulations show that the laser pulse drills a channel through an underdense plasma slab due to relativistic self-focusing. Both ions and electrons are accelerated in the head region of the channel. However, ion acceleration is more effective at the end of the slab. Here electrons from the channel expand in vacuum and are followed by the ions dragged by the Coulomb force arising from charge separation. A similar mechanism of ion acceleration occurs when a superintense laser pulseinteracts with a thin slab of overdense plasma and the pulse ponderomotivepressure moves all the electrons away from a finite-diameter spot.

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Documento generato il 02/04/20 alle ore 22:22:22