Energy spectrum of electrons transmitted through curved dielectric tubes

• Published in: Surface investigation, x-ray, synchrotron and neutron techniques Vol. 11; no. 5; pp. 1056 - 1061
• Main Authors: Petukhov, V. P., Petukhov, M. V.
• Format: Journal Article
• Language: English
• Published: Moscow Pleiades Publishing 01.09.2017; Springer Nature B.V
• Subjects: Chemistry and Materials Science; Electron energy; Energy spectra; Energy transmission; Excitation spectra; Inelastic collisions; Materials Science; Maxima; Polyurethane resins; Surfaces and Interfaces; Thin Films; Tubes; inelastic collisions; X-ray radiation; transmission
• ISSN: 1027-4510; 1819-7094
• DOI: 10.1134/S1027451017050330

The transmission coefficients and the energy spectra of electrons with an energy of 10–20 keV transmitted through curved glass and polyurethane tubes are measured with a cylindrical electrostatic analyzer. The spectra of X-ray excited by these electrons at the tube outlet are also measured. At larger beamdeflection angles, the spectral distribution of electrons at the curved tube outlet expands considerably, and the maxima of the spectral curves shift toward lower energies. The obtained results suggest that electrons propagating within a curved tube lose energy in the process of inelastic collisions with walls. The transmission coefficient, which is determined by measuring the electron current at the tube inlet and at its outlet, depends only slightly on the electron energy (in the studied energy range) and drop by a factor of more than two when the deflection angle is increased from 0° to 90°.