Evolution of photoionization two-stream instability in collisional plasma

I. A. Andriyash; V. Yu Bychenkov; W. Rozmus

doi:10.1016/j.hedp.2008.03.001

Evolution of photoionization two-stream instability in collisional plasma

I. A. Andriyash, V. Yu Bychenkov, W. Rozmus

Research output: Contribution to journal › Article › peer-review

Abstract

A kinetic model which takes into account gas jet photoionization by an ultrashort linearly polarized EUV/X-ray free electron laser (FEL) pulse, a self-generated low frequency electric field, and elastic electron scattering on atoms is introduced to study the photoionization two-stream (PITS) instability. The evolution of PITS instability is described in terms of an integral equation for electron density perturbations. This paper presents a generalization of previous theories of the PITS instability in collisionless plasmas. The instability is produced by the anisotropy of photoionized electrons and is strongly affected by electron-atom collisions. Relaxation of the PITS instability is studied for different relations between the FEL pulse duration, the instability growth time, and the electron collision time.

Original language	English
Pages (from-to)	73-77
Number of pages	5
Journal	High Energy Density Physics
Volume	4
Issue number	3-4
DOIs	https://doi.org/10.1016/j.hedp.2008.03.001
Publication status	Published - 1 Oct 2008
Externally published	Yes

Keywords

Free electron laser
Gas jet plasma
Photoionization
Plasma instability
X-ray pulse

Access to Document

10.1016/j.hedp.2008.03.001

Cite this

@article{611769a3124242208fae147d6e430b93,

title = "Evolution of photoionization two-stream instability in collisional plasma",

abstract = "A kinetic model which takes into account gas jet photoionization by an ultrashort linearly polarized EUV/X-ray free electron laser (FEL) pulse, a self-generated low frequency electric field, and elastic electron scattering on atoms is introduced to study the photoionization two-stream (PITS) instability. The evolution of PITS instability is described in terms of an integral equation for electron density perturbations. This paper presents a generalization of previous theories of the PITS instability in collisionless plasmas. The instability is produced by the anisotropy of photoionized electrons and is strongly affected by electron-atom collisions. Relaxation of the PITS instability is studied for different relations between the FEL pulse duration, the instability growth time, and the electron collision time.",

keywords = "Free electron laser, Gas jet plasma, Photoionization, Plasma instability, X-ray pulse",

author = "Andriyash, \{I. A.\} and Bychenkov, \{V. Yu\} and W. Rozmus",

year = "2008",

month = oct,

day = "1",

doi = "10.1016/j.hedp.2008.03.001",

language = "English",

volume = "4",

pages = "73--77",

journal = "High Energy Density Physics",

issn = "1574-1818",

number = "3-4",

}

TY - JOUR

T1 - Evolution of photoionization two-stream instability in collisional plasma

AU - Andriyash, I. A.

AU - Bychenkov, V. Yu

AU - Rozmus, W.

PY - 2008/10/1

Y1 - 2008/10/1

N2 - A kinetic model which takes into account gas jet photoionization by an ultrashort linearly polarized EUV/X-ray free electron laser (FEL) pulse, a self-generated low frequency electric field, and elastic electron scattering on atoms is introduced to study the photoionization two-stream (PITS) instability. The evolution of PITS instability is described in terms of an integral equation for electron density perturbations. This paper presents a generalization of previous theories of the PITS instability in collisionless plasmas. The instability is produced by the anisotropy of photoionized electrons and is strongly affected by electron-atom collisions. Relaxation of the PITS instability is studied for different relations between the FEL pulse duration, the instability growth time, and the electron collision time.

AB - A kinetic model which takes into account gas jet photoionization by an ultrashort linearly polarized EUV/X-ray free electron laser (FEL) pulse, a self-generated low frequency electric field, and elastic electron scattering on atoms is introduced to study the photoionization two-stream (PITS) instability. The evolution of PITS instability is described in terms of an integral equation for electron density perturbations. This paper presents a generalization of previous theories of the PITS instability in collisionless plasmas. The instability is produced by the anisotropy of photoionized electrons and is strongly affected by electron-atom collisions. Relaxation of the PITS instability is studied for different relations between the FEL pulse duration, the instability growth time, and the electron collision time.

KW - Free electron laser

KW - Gas jet plasma

KW - Photoionization

KW - Plasma instability

KW - X-ray pulse

UR - https://www.scopus.com/pages/publications/53149116304

U2 - 10.1016/j.hedp.2008.03.001

DO - 10.1016/j.hedp.2008.03.001

M3 - Article

AN - SCOPUS:53149116304

SN - 1574-1818

VL - 4

SP - 73

EP - 77

JO - High Energy Density Physics

JF - High Energy Density Physics

IS - 3-4

ER -

Evolution of photoionization two-stream instability in collisional plasma

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this