No abstract

The D2Σ+-X2Σ+ band system of CaH has been reinvestigated in emission and in absorption. Analysis shows that the previously accepted vibrational numbering must be changed with the result that the vibration frequency of the D state must be reduced by a factor of two. Anomalies in the rotational structure of the D state are explained by a strong homogeneous interaction with excited vibrational levels of B2Σ+.

No abstract

The absolute oscillator strengths of the ground state transitions of metallic elements can be determined by measuring the optical absorption from a continuous spectrum in a beam of the evaporated material. The apparatus makes use of synchronous detection for the optical signal and a pivotal microbalance for the determination of beam density. This form of microbalance does not require the usual magnetic damping and thus permits accurate measurements to be made on ferromagnetic materials.

No abstract