CALCULATION OF THALLIUM HYPERFINE ANOMALY

. We suggest a method of a computation of hyperfine anomaly for many-electron atoms and ions. At first, we tested this method by calculating the hyperfine anomaly for a hydrogen-like thallium ion and obtained fairly good agreement with analytical expressions. Then, we did calculations for the neutral thallium and tested an assumption that the ratio between the anomalies for s and p 1/2 states is the same for these two systems. Finally, we come up with recommendations about the preferable atomic states for the precise measurements of the nuclear g factors.