Electron velocity distribution in a partially ionized gas under the action of electric and magnetic fields. — II

1968 ◽  
Vol 55 (2) ◽  
pp. 315-334 ◽  
Author(s):  
C. Lo Surdo ◽  
V. Zampaglione
Keyword(s):  
Magnetic Fields ◽  
Velocity Distribution ◽  
Electron Velocity ◽  
Ionized Gas ◽  
Electron Velocity Distribution ◽  
Electric And Magnetic Fields ◽  
Partially Ionized

scholarly journals Weibel instability by ultraintense laser pulses

1999 ◽  
Vol 17 (3) ◽  
pp. 515-518 ◽  
Author(s):  
T. OKADA ◽  
I. SAJIKI ◽  
K. SATOU
Keyword(s):  
Magnetic Fields ◽  
Velocity Distribution ◽  
Electromagnetic Waves ◽  
Laser Pulses ◽  
Electron Velocity ◽  
Electron Velocity Distribution ◽  
Loss Mechanism ◽  
Weibel Instability ◽  
Particle In Cell ◽  
Underdense Plasmas

Particle-in-cell (PIC) simulations show that an anisotropic electron velocity distribution is demonstrated by ultraintense laser pulses in underdense plasmas. Recently, it is reported that the anisotropy has been experimentally demonstrated in laser-produced plasmas. It is also pointed out that gigagauss magnetic fields are generated by ultraintense laser pulses. We have already published that the Weibel-type electromagnetic instabilities can be theoretically excited by electrons in a velocity distribution with anisotropic temperature. If these electromagnetic waves are excited, the target may have a possibility not only to give rise to a new type of energy loss mechanism but also to influence the implosion characteristics. In this work, we present PIC simulation of the interaction of ultraintense laser pulses with plasmas. Intense self-generated magnetic fields is produced by the mechanism of Weibel instability in underdense plasmas.

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