Transverse beam temperature effects on mixed Two-Stream/Filamentation unstable modes

A. Bret; M. C. Firpo; C. Deutsch

doi:10.1016/j.nima.2005.01.272

Transverse beam temperature effects on mixed Two-Stream/Filamentation unstable modes

A. Bret
, M. C. Firpo
, C. Deutsch

Universidad de Castilla-La Mancha
LPP
Laboratoire de Physique des Gaz et des Plasmas

Research output: Contribution to journal › Conference article › peer-review

Abstract

We investigate transverse beam temperature effects on the coupling between Two-Stream and Filamentation instabilities for an electron beam passing through a hot plasma with return current. By denoting θk, the angle between the wave vector and the beam, transverse beam temperature effects are important for θk larger than a critical angle θc which can be determined exactly, the resulting effects being a damping of the instabilities. On the other hand, effects are small for θk<θc. In particular, the absolute maximum growth rate is found for a wave vector in this region and is therefore not damped by transverse beam temperature.

Original language	English
Pages (from-to)	427-429
Number of pages	3
Journal	Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment
Volume	544
Issue number	1-2
DOIs	https://doi.org/10.1016/j.nima.2005.01.272
Publication status	Published - 21 May 2005
Externally published	Yes
Event	Proceedings of the 15th International Symposium on Heavy Intertial Fusion HIF 2004 - Duration: 7 Jun 2004 → 11 Jun 2004

Keywords

Fast Ignition
Filamentation
Two-Stream
Weibel

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10.1016/j.nima.2005.01.272

Cite this

@article{011b54bebc7c41d8a6b26e1b49c0ec09,

title = "Transverse beam temperature effects on mixed Two-Stream/Filamentation unstable modes",

abstract = "We investigate transverse beam temperature effects on the coupling between Two-Stream and Filamentation instabilities for an electron beam passing through a hot plasma with return current. By denoting θk, the angle between the wave vector and the beam, transverse beam temperature effects are important for θk larger than a critical angle θc which can be determined exactly, the resulting effects being a damping of the instabilities. On the other hand, effects are small for θk<θc. In particular, the absolute maximum growth rate is found for a wave vector in this region and is therefore not damped by transverse beam temperature.",

keywords = "Fast Ignition, Filamentation, Two-Stream, Weibel",

author = "A. Bret and Firpo, \{M. C.\} and C. Deutsch",

year = "2005",

month = may,

day = "21",

doi = "10.1016/j.nima.2005.01.272",

language = "English",

volume = "544",

pages = "427--429",

journal = "Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment",

issn = "0168-9002",

number = "1-2",

note = "Proceedings of the 15th International Symposium on Heavy Intertial Fusion HIF 2004 ; Conference date: 07-06-2004 Through 11-06-2004",

}

Transverse beam temperature effects on mixed Two-Stream/Filamentation unstable modes. / Bret, A.; Firpo, M. C.; Deutsch, C.
In: Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment, Vol. 544, No. 1-2, 21.05.2005, p. 427-429.

Research output: Contribution to journal › Conference article › peer-review

TY - JOUR

T1 - Transverse beam temperature effects on mixed Two-Stream/Filamentation unstable modes

AU - Bret, A.

AU - Firpo, M. C.

AU - Deutsch, C.

PY - 2005/5/21

Y1 - 2005/5/21

N2 - We investigate transverse beam temperature effects on the coupling between Two-Stream and Filamentation instabilities for an electron beam passing through a hot plasma with return current. By denoting θk, the angle between the wave vector and the beam, transverse beam temperature effects are important for θk larger than a critical angle θc which can be determined exactly, the resulting effects being a damping of the instabilities. On the other hand, effects are small for θk<θc. In particular, the absolute maximum growth rate is found for a wave vector in this region and is therefore not damped by transverse beam temperature.

AB - We investigate transverse beam temperature effects on the coupling between Two-Stream and Filamentation instabilities for an electron beam passing through a hot plasma with return current. By denoting θk, the angle between the wave vector and the beam, transverse beam temperature effects are important for θk larger than a critical angle θc which can be determined exactly, the resulting effects being a damping of the instabilities. On the other hand, effects are small for θk<θc. In particular, the absolute maximum growth rate is found for a wave vector in this region and is therefore not damped by transverse beam temperature.

KW - Fast Ignition

KW - Filamentation

KW - Two-Stream

KW - Weibel

U2 - 10.1016/j.nima.2005.01.272

DO - 10.1016/j.nima.2005.01.272

M3 - Conference article

AN - SCOPUS:18544365211

SN - 0168-9002

VL - 544

SP - 427

EP - 429

JO - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

JF - Nuclear Instruments and Methods in Physics Research, Section A: Accelerators, Spectrometers, Detectors and Associated Equipment

IS - 1-2

T2 - Proceedings of the 15th International Symposium on Heavy Intertial Fusion HIF 2004

Y2 - 7 June 2004 through 11 June 2004

ER -

Transverse beam temperature effects on mixed Two-Stream/Filamentation unstable modes

Abstract

Keywords

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