Aa. Mihajlov et al., CONTINUOUS EMISSION FROM A LOW-TEMPERATURE HELIUM PLASMA DUE TO RADIATIVE CHARGE-EXCHANGE AND RADIATIVE ION-ATOM RECOMBINATION, Journal of quantitative spectroscopy & radiative transfer, 50(2), 1993, pp. 227-232
Radiative recombination and radiative charge exchange in symmetrical H
e+ + He collisions are considered using a semiclassical adiabatic mode
l of collisions in low-temperature plasmas. The reaction channels are
assumed to be uncoupled and the corresponding total and partial spectr
al coefficients for the spontaneous continuous electromagnetic emissio
n are calculated for helium-plasma temperatures below 3 x 10(4) K. The
results are compared with the similar spectral densities for electron
-ion and electron-atom scattering. It is found that in a wide range of
physical conditions radiative processes involving ion-atom collisions
should be taken into account in the analysis of the continuum radiati
on from helium plasmas.