Transition probabilities of Mn(II) lines lying between 237 and 357 nm from arc emission measurements

Abstract

The arc arc emission method has been used to determine transition probabilities for 326 lines of Mn(II) belonging to 134 multiplet. The spectra were emitted from a plasma produced in a wall-stabilized arc. A new method has been developed to introduce Mn vapour (created by evaporation of solid metal in a combined arc-spark discharge) into the Ar-H-plasma. Plasma have been performed by spectroscopic methods. The relative transition probabilities are placed on an absolute scale by using A-values deduced from lifetime measurements.