Table 1 Derived typical parameters for interpenetrating plasma flows

From: Electron stochastic acceleration in laboratory-produced kinetic turbulent plasmas

Parameters

Definition

Value

Ion-ion MFP, λi-i (cm)

670Ai4(Vr[1000 km/s])4/(Zi4(2Ai)2ni[1019 cm−3]lnΛ)

~ 200

Ion-electron MFP, λi-e (cm)

6 × 10−3AiVr[1000 km/s] Te3/2(eV)/((Zi2ne[1019 cm−3]lnΛ)

~ 31

Eletron-electron MFP, λe-e (cm)

0.5(Te[0.5 keV])2/(ne[1019 cm−3]lnΛ)

~ 10−3

Electron inertial length, de (μm)

c/ωpe

~ 1.7

Ion inertial length, di (μm)

c/ωpi

~ 100

Electron thermal vel., υthe (cm s−1)

4.2 × 107Te1/2

1.0 × 109

Ion thermal vel., υthi (cm s−1)

9.8 × 105A−1/2Ti1/2

1.2 × 107

Flow Mach number, M

Vflow/Cs

~ 6

Growth rate, Г (s−1)

0.1 × υ/c × ωpi

~ 1.5 × 109 s−1

  1. Derived parameters describing the experimental platform are based on the flow conditions, including the relative velocity Vr =  2Vflow ≈ 1.5 × 108 cm s−1, average atomic number Ai = 4, electron density ne = Zini ≈ 1019 cm−3, the Coulomb logarithm lnΛ ~ 8.5, plasma temperature T = Te = Ti ≈ 600 eV (corresponding the sound velocity Cs = 2.6 × 107 cm s−1), and the electron (ion) plasma frequency ωpe = 1.8 × 1014 s−1 (ωpi = 3 × 1012 s−1).
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