VELOCITY AND Z DEPENDENCE OF THE TRANSIENT MAGNETIC-FIELD IN IRON

The velocity dependence of the transient magnetic field in iron has been investigated for134Ba at four initial velocities between vi=0.8 v0 and vi=3.6 v0 (v0=c/137). The present work confirms the linear v-dependence found for light ions (Z≤34). Existing data on transient fields were reanalyzed assuming a general validity of the linear v-dependence. The extracted Z-dependence shows a smooth, almost linear Z-dependence for ions with Z≥12. From the present work, with the calibration of the transient field from systematics, the g-factor of the first excited 2+ state in134Ba is determined to be g=0.41(6). © 1979 North-Holland Publishing Company.