Hyperfine Structure of the Spectrum of Ruthenium

抄録

The hyperfine structure of the spectrum of Ru I was studied, and a displacement effect of the order of 0.015 cm⁻¹ between even isotopes having the difference of two neutron numbers was found in the lines corresponding to the transition 5s–5p. The spins of the odd isotopes were found to be 9⁄2≥I⁄≥5⁄2, the nuclear magnetic moments being negative.