Hirschfelder-Silbey and Amos-Musher were the first to calculate the collisional hyperfine line shift for the ground state of hydrogen in a helium atmosphere using exchange theories of perturbation. The relationship between their result and later calculations based on other exchange perturbation theories is discussed. A more accurate equation for calculating the relative local hyperfine line shift is suggested which gives good agreement with experiment.
|Number of pages||5|
|Journal||Soviet physics. Technical physics|
|Publication status||Published - 1 Jan 1983|
Scopus subject areas
- Environmental Science(all)
- Earth and Planetary Sciences(all)