The Stark effect in hydrogen and precision measurements of the Rydberg constant

Abstract
The determination of the Rydberg is based on the measurement of the wavelengths of suitable fine structure components in the spectra of one-electron atoms. A source of possible systematic error is the Stark effect arising from electric fields present in the discharge tube. A detailed analysis is given of the stark effect on the Balmer- alpha line of the isotopes of hydrogen. The frequency shifts and intensity changes are displayed for values of the electric field from 0-300 V cm-1.