THE CALCULATION OF CONTINUOUS RADIATIVE SPECTRA OF A PLASMA

A new method is suggested for calculating the inverse stopping and pho toionization (in the integral sense) absorption coefficients of a plas ma within the quantum defect theory. The radial integrals are calculat ed within the quasiclassical approximation. The quantum defects, as we ll as the amplitude and phase functions of the radial integrals are ap proximated by linear energy dependences, making it possible to integra te analytically the Maxwell-Boltzmann electron distribution. A compari son is carried out with numerical calculations and other analytic appr oximations.