K-shell internal-conversion coefficients of the 122 and 136.4 keV gamma transitions of57Co

Determination of theE2/M1 mixing ratio of the 122-keV transition in the57Co-decay by nuclear orientation

“…Our value agrees with those extracted from conversion-and Coulombexcitation-measurements (Refs. [1][2]), but is somewhat lower than those obtained in angular correlation and M6ssbauer-measurements (Ref. [1]).…”

“…[1][2][3][4][5][6]), there is considerable spread in the values reported up-to-now. An accurate determination of 6 is useful in several respects.…”