Druyvesteyn distribution

Downward displacement operator, 399 Drell, S. D., 724 Druyvesteyn distribution, 49 Druyvesteyn, M. J49 Dual problem in linear programming, 304... 

Figure 6. Electron energy distribution function in a plasma generated under Condition A (see Table 1). Maxwell and Druyvesteyn distributions were calculated under the assumption that the total energy and the total electron density were the same as those observed.

A procedure similar to that described above is then followed to evaluate f(e) for the Druyvesteyn distribution. 

Electron energy distribution function, a particular form of the function specified by the suffix M for Maxwell-Boltzmann, D for Davy-dov-Druyvesteyn, and so on... 

It should be noted that an electron temperature is defined properly only when the EEDF is Maxwellian. For non-Maxwellian distributions, an equivalent electron temperature may be defined based on the mean electron energy, by using Eq. (10). Another popular form of the EEDF which can be expressed analytically is the Druyvesteyn distribution [42, 43, 48]. 

Figure C2.13.2. Eleetron energy distributions f (U)iox a mean electron energy of 4.2 eV, Maxwell distribution (M), Druyvesteyn distribution (D) and a calculated distribution (Ar) for an Ar plasma [12].

Druyvesteyn Distribution, Margenau Distributions, and Other Specific EEDF... 

Figure 3-4. Comparison of Maxwell and Druyvesteyn electron energy distribution functions (EEDFs) at the same value of mean electron energy. Statistical weight effect related to the pre-exponential factor 5 and resulting in /(O) = 0 is taken into account.

S.2.2.2. Druyvesteyn distribution. If, in contrast to the preceding distribution, the electron mean free path A. = const, then Ven = f integral (3-47) gives the exponential-parabolic Drayvesteyn EEDF, first derived in 1930 ... 

Margenau distribution. This distribution, first derived in 1946, is a generalization of the Druyvesteyn distribution for the case of alternating electric fields ... 

Druyvesteyn Electron Energy Distribution Function. Calculate the average electron energy for the Druyvesteyn distribution. Define the effective electron temperature of the distribution and compare it with that of the Maxwellian distribution frmction. 

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