Differential cross sections for elastic electron scattering by mercury in the energy range 9 to 25 eV

Abstract

Differential cross sections for electron elastic scattering in mercury have been measured over the incident electron energy range 9 to 25 eV and the angular scattering range 10 to 120 degrees . The cross sections have been normalized to the absolute value of Holtkamp et al. (1987) at 25 eV and 60 degrees . The integral elastic cross sections and total excitation cross sections in the above energy range have also been obtained.

Critical minima and spin polarization in the elastic electron scattering by the mercury atoms

“…The integral total σ tot (E ), elastic σ el (E ) (16), momentum transfer σ mom (E ) (18) and viscosity σ vis (E ) (19) 11); the dash-dotted line (black) represents the DBSR-36 calculations [9]; dash-dot-dotted line (olive) represents the RCCC calculations [10]. Experimental data: , [17]; •, [19]; ∇, [20]; , [21]; , [22]; * , [23]. calculated using the Va f 2m potential (see figure 2) agree well with the theoretical [9,10] and experimental [17,[19][20][21][22][23] ones.…”

“…Therefore, the description of scattering in the OP approximation used by us is, to a certain extent, consistent with the description of the atom. The results of our calculations of differential and integral cross sections as well as the Sherman functions are compared with experimental [16][17][18][19][20][21][22][23] and theoretical [2,3,6,7,[9][10][11][12]24] data.…”

Electron-impact studies for dipole oscillator strengths and elastic electron-scattering differential cross sections of mercury vapour

“…Furthermore, Kessler and his co-workers [26][27][28][31][32][33][34] continually reported their different experimental studies for the EDCSs and DCSs of the 6P excitations of mercury from 1970 to 1990. More recently, Panajotovic et al [35] and Zubek et al [36] measured the EDCSs at incident electron energies of 15-100 eV and 9-25 eV within the angular ranges 10 • -150 • and 10 • -120 • , respectively. Note that almost all of these studies were performed at low incident electron energies (usually less than 200 eV) except for two theoretical calculations which were performed over an incident electron energy range of 25-40 keV [10] and 200-290 keV [1], respectively.…”

“…Most of them concerned the elastic scattering DCSs (EDCSs), while only a few mentioned the inelastic 6P excitations. Recent studies [35][36][37][38] show continuous interest in electron scattering from mercury.…”

Self-similar functions in $ L_2\lbrack0,1\rbrack$ and the Sturm-Liouville problem with a singular indefinite weight

“…One of the limitations of experimental studies of differential cross sections has been that the observable scattering angles are limited to a range that is typically from 10-130 • (see for example Brunger et al (1991), Zubek et al (1995)). The upper limit of that range depends on the particular experimental technique and is due to the fact that when the direction of the scattered electron analyser is varied it is usually not possible to move it to the direction from which the incident electron beam originates.…”