Low-frequency Noise Spectra of Hot-filament Low-pressure Discharge Tubes

Publisher Website
Google Scholar
Abstract
Measurements have been made of the low-frequency noise spectrum of a number of hot-cathode discharges in mercury vapour saturated at room temperature. As previously reported by Cobine and Gallagher, the spectrum is continuous, with superposed peaks. The latter can be partly attributed to harmonic components of ionic relaxation oscillations. The upper frequency limit of the continuum exceeds 10 Mc/s in some instances Most of the noise from the tubes studied originated near the cathode Some relations have been traced between the noise and oscillations and position on the current-voltage characteristic curve for the tube, but there is variation from one tube to another

This publication has 4 references indexed in Scilit: